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Businesses (627)
- Aber Elwyn Farm Elgwysfair A Churig, Carmarthenshire
- Aber Studios, printers Aberystwyth, Cardiganshire
- Aberclydan Brewery Llanon, Cardiganshire
- Abercorris Slate Quarry Co Abercorris, Merionethshire
- Aberdare Times, newspaper Aberdare, Glamorgan
- Abergavenny Chronicle, newspaper Abergavenny, Monmouthshire
- Abergynolwyn Slate & Slab Co Ltd Abergynolwyn, Merionethshire
- Aberllefenni Slate Quarry Aberllefenni, Merionethshire
- Aberpergwm Collieries Co Ltd Glyn-neath, Glamorgan
- Aberystwyth & Aberdovey Steam Packet Co Ltd Aberystwyth, Cardiganshire
- Aberystwyth & Welsh Coast Railway Co
- Aberystwyth Corn & General Market Co Ltd Aberystwyth, Cardiganshire
- Aberystwyth Gas & Coke Co Aberystwyth, Cardiganshire
- Aberystwyth Public Baths Co Ltd Aberystwyth, Cardiganshire
- Aberystwyth Savings Bank Aberystwyth, Cardiganshire
- Alexandra Slate Co Ltd Caernarfon, Caernarfonshire
- The Amalgamated Anthracite Collieries Ltd Llandebie, Carmarthenshire
- Anglo-Welsh Review, magazine
- Richard Ashton, carpenter and wheelwright Aberhosan, Montgomeryshire
- Bacheiddion and Dyfngwm lead mines Bacheiddion, Montgomeryshire
- Bagillt Nonconformist Cemetery Co Bagillt, Flintshire
- Bamford and Crimble collieries Bamford, Lancashire
- Bangor & Caernarvon Railway Co Caernarfonshire;Gwynedd
- Barker, Morris & Owen, solicitors Carmarthen, Carmarthenshire
- Barry Dock & Railway Co Barry, Glamorgan
- John Bateman, farmer, Llwynbedw Llanycefn, Pembrokeshire
- Beaufort Arms Hotel Monmouth, Monmouthshire
- Beaufort ironworks Ebbw Vale, Monmouthshire
- David Benjamin, blacksmith Capel Seion, Cardiganshire
- Benjamin Evans, blacksmith Henllan, Cardiganshire
- RG Bennet, printer Aberystwyth, Cardiganshire
- Birdsall & Son Ltd, bookbinders Northampton, Northamptonshire
- No 2 Black Pins Pit Nantyglo, Monmouthshire
- Blaen Cennen Farm Gwynfe, Carmarthenshire
- Blaen Ceunant lead mine Cardiganshire;Dyfed
- John Bonsall, solicitor Machynlleth, Montgomeryshire
- Richard Emrys Bonsall, architect Aberystwyth, Cardiganshire
- Gwynne Vaughan Bowen, farmer, Pembrokeshire Pembrokeshire;Dyfed
- Brecon & Merthyr Tydfil Junction Railway Co Brecon, Brecknockshire;Merthyr Tydfil, Glamorgan
- Brecon-Radnor Seeds Ltd Brecknockshire;Powys
- Brecon Savings Bank Brecon, Brecknockshire
- Breconshire Railway & Canal Co Brecknockshire;Powys
- British Broadcasting Corporation: Wales
- Francis Brodie, writer to the signet
- Brogden family, ironmasters Tondu, Glamorgan
- Bronfloyd Lead Mines Ltd Cardiganshire;Dyfed
- John Brooke, solicitor Bridgnorth, Shropshire
- Broughton & Plas Power Coal Co Ltd Wrexham, Denbighshire
- John & Charles Brown, solicitors Cardiff, Glamorgan
- Brymbo Silica Quarries Ltd Brymbo, Denbighshire
- Brymbo Steel Co Ltd Brymbo, Denbighshire
- Bryncoch and Esgair Mwyn lead mines Cardiganshire;Dyfed
- Bryndinas tin mine Bryndinas, Merionethshire
- Brynmawr & Blaenavon Railway Co
- Bugail Slate Co Ltd Penmachno, Caernarfonshire
- Bute Docks Co Cardiff, Glamorgan
- Bwlchgwyn Roadstone Co Bwlch Gwyn, Denbighshire
- Bwlchgwyn Silica Co Bwlch Gwyn, Denbighshire
- Bwlchyranos lead mine Bwlchyranos, Cardiganshire
- Bynea Supply Stores Bynea, Carmarthenshire
- Caermeinciau Slate Co Waenfawr, Caernarfonshire
- Cambrian Airways Ltd Rhoose, Glamorgan
- Cambrian Electrolytic Zinc Co Ltd Cardiganshire;Dyfed
- Cambrian Newspaper Co Swansea, Glamorgan
- Cambrian Railways Co Oswestry, Shropshire
- Cardiff Bay Opera House Trust Cardiff, Glamorgan
- Cardiff Printers Ltd, stationery manufacturers Cardiff, Glamorgan
- Cardiganshire Mining Co Ltd, lead mines Cardiganshire;Dyfed
- Carew limestone quarry Carew, Pembrokeshire
- Caricature Theatre Cymru Wales
- Carmarthen & Cardigan Railway Co
- Carmarthenshire Mineral Railway Carmarthenshire;Dyfed
- Carnarvon & Llanberis Railway Co Caernarfonshire;Gwynedd
- Carnarvonshire Railway Co Caernarfonshire;Gwynedd
- Cefn-Du Slate Quarry Co Waenfawr, Caernarfonshire
- Central Wales Extension Railway Co
- Central Wales Railway Co
- John Charles, farmer Llanddewi Rhydderch, Monmouthshire
- Chester & Holyhead Railway Co
- James M Child & partners, Rowe's Colliery Pembrokeshire;Dyfed
- Clydach Iron Co Llanelly, Monmouthshire
- Coed Madog slate quarry Coed Madog, Caernarfonshire
- Company of Copper Miners in England
- Conway & Llanrwst Railway Co
- Corwen & Bala Railway Co Merionethshire;Gwynedd
- Corwen Electric Light Co Ltd Corwen, Merionethshire
- Cory Bros & Co Ltd, colliery owners Cardiff, Glamorgan
- Court Grange Silver Lead Mines Co Cardiganshire;Dyfed
- Crawshay Brothers (Cyfarthfa) Ltd, iron and steel manufacturers and colliery proprietors Merthyr Tydfil, Glamorgan
- Croesor Slate Quarries Croesor, Merionethshire
- Cwm Darren lead mine Cwm Darren, Cardiganshire
- Cwmni Theatr Hwyl a Fflag
- Cwm Sebon lead mine Cwm Sebon, Cardiganshire
- Cyll, Gorn and Van lead mines Montgomeryshire;Powys
- Dalton, Spencer & Corbett, solicitors Cardiff, Glamorgan
- R Daniel, farmer Llandderfel, Merionethshire
- David & David, land agents and surveyors Cardiff, Glamorgan
- Davies Bros Ltd, slate merchants, Porthmadog Porthmadog, Caernarfonshire
- Davies Brothers, slate merchants Porthmadog, Caernarfonshire
- D Oswald Davies, solicitors Dolgellau, Merionethshire
- Daniel R Davies, shoemaker Llanrhystud, Cardiganshire
- David Davies, smith Pencarreg, Carmarthenshire
- DR Davies & Son Ltd, drapers and grocers Aberaeron, Cardiganshire
- Evan Davies, farmer Llanuwchllyn, Merionethshire
- Evan Davies, grocer Merthyr Tydfil, Glamorgan
- Davies family, farmers Cardiganshire;Dyfed
- Griffith Davies, bookseller and newsagent Ystalyfera, Glamorgan
- Hugh Davies & Co, chemists Machynlleth, Montgomeryshire
- Jacob Davies, blacksmith Cynwyl Elfed, Carmarthenshire
- J&A Davies, solicitors Llanidloes, Montgomeryshire
- John Davies, draper and grocer Aberaeron, Cardiganshire
- John and Susan Davies, drapers Machynlleth, Montgomeryshire
- John Davies, printer Lampeter, Cardiganshire
- John Davies, solicitor Cardigan, Cardiganshire
- Moses Davies, auctioneers, estate agents and valuer Llanfyllin, Montgomeryshire
- Richard Hart Davies, farmer, Cardiganshire Cardiganshire;Dyfed
- SP Davies & Sons, ironmongers, seedsmen Llanidloes, Montgomeryshire
- Thomas Melinddwr Davies, weaver Llansawel, Carmarthenshire
- William Davies, farmer, Brynffanigl Ucha Betws-yn-Rhos, Denbighshire
- MH Davis & Son, ironmongers Aberystwyth, Cardiganshire
- Y Ddolen, newspaper Cwm Ystwyth, Cardiganshire
- Dee Land Co
- Denbigh, Ruthin & Corwen Railway Co
- Denton Clark & Co, surveyors and land agents Llanidloes, Montgomeryshire
- Dinas Mawddwy Coal & Lime Co Dinas Mawddwy, Merionethshire
- Diphwys Casson Slate Co Ltd Blaenau Festiniog, Merionethshire
- Diphwys Slate Quarry Co Ltd Blaenau Festiniog, Merionethshire
- John Dovey, lawyer
- Rupert Dovey, solicitor Stourbridge, Worcestershire
- Dovey Woodlands (Coedlannau Bro Ddyfi) Ltd, co-operative forestry organisation Cardiganshire;Dyfed
- Dulas and Fadian Copper Mine, Penegoes, Montgomeryshire
- Thomas Dyke, grocer Monmouth, Monmouthshire
- East Darren Mines Co Ltd, lead mines Cardiganshire;Dyfed
- Eaton-Evans & Williams, solicitors Haverfordwest, Pembrokeshire
- Walter Eddy, mine surveyor Fron, Denbighshire
- Edward Edwards, bookbinder and seller
- Elizabeth Edwards, milliner Montgomeryshire;Powys
- Edwards family, farmers Cilgerran, Pembrokeshire
- Thomas Edwards, farmer and timber grower Flintshire;Clwyd
- Edward Ellis, auctioneer Aberystwyth, Cardiganshire
- Elliss, Pugh & Co, Rhandirmwyn lead mines Llandovery, Caernarfonshire
- English Copper Co Aberavon, Glamorgan
- Esgair Mwyn and Fron Goch lead and silver mines Esgair Mwyn, Cardiganshire;Fron Goch, Cardiganshire
- Evan Evans Bevan Ltd, brewers, wine and spirit merchants Pontardawe, Glamorgan;Cadoxton-juxta-Neath, Glamorgan
- Adam & Margaret Evans, printers Machynlleth, Merionethshire
- Evans & Bevan Ltd, anthracite collieries Neath, Glamorgan
- David Evans, boatman and carrier Merionethshire;Gwynedd
- David Evans, farmer, Ayngstree Clifton-in-Teme, Worcestershire
- David M Evans, hatter Cilcennin, Cardiganshire
- Downes Evans family, farmers Welshpool, Montgomeryshire
- Edward Evans, general dealer Tal-y-bont, Cardiganshire
- Hugh Evans & Sons Ltd, printers and publishers Liverpool, Lancashire
- John William Evans (formerly Robert Evans), small holders and keepers of Erwllan shop Lledrod, Cardiganshire
- Lewis Evans, chemist Cardigan, Cardiganshire
- O Evans-Jones & Co, printers Llanrwst, Denbighshire
- Rees Evans, carpenter Glanaman, Carmarthenshire
- Roy Evans & Jones, solicitors Newcastle Emlyn, Carmarthenshire
- Thomas Evans, draper and general merchant Llanarth, Cardiganshire
- William Evans, grocer Cas-mael, Pembrokeshire;Treletert, Pembrokeshire
- Farm and Afongoch lead mines Llanasa, Flintshire
- Felin Cwm Pandy Woollen Mill Ciliau Aeron, Cardiganshire
- Felinganol mill Llanrhystud, Cardiganshire
- Festiniog & Blaenau Railway Co Blaenau Festiniog, Merionethshire
- Festiniog Refreshment House Co Ltd Ffestiniog, Merionethshire
- Ffestiniog Slate Quarry Ltd Blaenau Festiniog, Merionethshire
- Ffrydan Woollen Factory, woollen manufacturers Bala, Merionethshire
- Ffrydd Issa Slate Company Ffrydd, Caernarfonshire
- CEG Fisher, barrister
- Fishguard Harbour Improvement Co Fishguard, Pembrokeshire
- Forest Slate Quarry Cilgerran, Pembrokeshire
- Fox Hill colliery
- Francis family, mining engineers and managers Cardiganshire;Dyfed
- John Francis & Son, land and estate agents, auctioneers and valuers Carmarthen, Carmarthenshire
- Fron lead mines Fron, Flintshire
- Fron Lime Works Fron, Denbighshire
- Garnant Collieries Co Ltd Carmarthenshire;Dyfed
- Garth Farm Machynleth, Montgomeryshire
- Garthewin Theatre Llanfair Talhaiarn, Denbighshire
- Gee & Son Ltd, printers Denbigh, Denbighshire
- Geuwern Slate Quarry Geuwern, Montgomeryshire
- Glamorgan Coal Co Ltd Llwynypia, Glamorgan
- Glamorganshire Banking Co, bank Neath, Glamorgan
- Glamorganshire Canal Co Cardiff, Glamorgan
- Glanavan Forge Llanllwni, Carmarthenshire
- Gogerddan lead mines Gogerddan, Cardiganshire
- Golden Valley Railway Co Herefordshire
- Gomerian Press, printers Llandyssul, Cardiganshire
- Gould family, Acton Farm Wittersham, Kent
- Great Dyliffe Lead Mining Co Ltd Montgomeryshire;Powys
- Gregynog Press Montgomeryshire;Powys
- Gresford Colliery Co Ltd Gresford, Denbighshire
- Griffith family, farmers Llwyndyrus, Cardiganshire
- Ywain Goronwy ap Griffith, architect
- Daniel & Jenkin Griffiths, general merchants Llanrhystud, Cardiganshire
- Griffiths family, blacksmiths Llansawel, Carmarthenshire
- James Griffiths, carpenter Dolau, Cardiganshire
- L Griffiths, farmer Brawdy, Pembrokeshire
- William Gunter, farmer Brecknockshire;Powys
- Gwasg Gee, publisher Denbigh, Denbighshire
- Gwasg Gomer, publisher Llandysul, Ceredigion
- Gwasg y Brython (Brython Press) Liverpool, Lancashire
- Gwern Fawr Mining Co
- Hafod y Porth Farm Beddgelert, Caernarfonshire
- David Harries, farmer, Pembrokeshire Pembrokeshire;Dyfed
- Harries family, Rhydwialchen Abergwili, Carmarthenshire
- John and Henry Harries, astrologers and amateur physicians Cwrtycadno, Carmarthenshire
- AM Hartley, corn merchant Aberystwyth, Cardiganshire
- John Harvey & Sons, estate agents, surveyors and valuers Haverfordwest, Pembrokeshire
- Haswell Brothers & Co, chartered accountants Chester, Cheshire
- Hen (Haun or Hain) Ferm colliery
- Hendre-Ddu Slate & Slab Quarry Co Ltd Merionethshire;Gwynedd
- Henry Herbert, colliery proprietor, architect Llandybie, Carmarthenshire
- Hereford, Hay & Brecon Railway Co
- Hibberts, Fuhr & Purrier, West Indies merchants London
- Hirwaun furnace Hirwaun, Glamorgan
- Holyhead Shipbuilding & Trading Co Holyhead, Anglesey
- Jeremiah Homfray & Co, ironfounders Merthyr Tydfil, Glamorgan
- Honno: Welsh Women's Press, co-operative publishing company Wales
- Hook Colliery Co Hook, Pembrokeshire
- Thomas Hope, innkeeper and carpenter Rhayader, Radnorshire
- Hughes & Son (Publishers) Ltd Wrexham, Denbighshire
- David Hughes & Sons, tailors and drapers Aberdovey, Merionethshire
- David Hughes, bootmaker Tanygrisiau, Merionethshire
- Edward Hughes, blacksmith Rhoscefnhir, Anglesey
- Evan Hughes, butcher and farmer Trawsfynydd, Merionethshire
- John Hughes, woollen manufacturer Llanuwchllyn, Merionethshire
- Rhys Hughes, draper Lampeter, Cardiganshire
- Charles Ireland, merchant Cardiff, Glamorgan
- AD and WO James, farmers, Aberpeithnant Pontrwyd, Cardiganshire
- James family, farmers, Pwllcenawon Upper Llanbadarn-y-creuddyn, Cardiganshire
- Gwynne James, physician Kington, Herefordshire
- John James, ironmongers Monmouth, Monmouthshire
- James James, surveyor Cardiganshire;Dyfed
- WV James, solicitor Haverfordwest, Pembrokeshire
- David Jameson, maltster Oswestry, Shropshire
- Jeffreys & Powell, solicitors Brecon, Brecknockshire
- David & Jenkin Jenkins, carpenters Pontrhydfendigaid, Cardiganshire
- David Jenkins, farmer Llanfihangel Geneu'r Glynn, Cardiganshire
- John Jenkins, farmer, cleric and antiquary Kerry, Montgomeryshire
- John Jenkins, land and mineral surveyor etc Resolven, Glamorgan
- Rees Jenkins, farmer Glyncorrwg, Glamorgan
- Thomas Jenkins, cabinet maker Llandeilo, Carmarthenshire
- Thomas Jenkins, monumental mason Glen View, Cardiganshire
- William Jenkins, bookseller and stationer Aberystwyth, Cardiganshire
- Evan John & Daniel Evans, weavers Gwernogle, Carmarthenshire
- Thomas Johnes, solicitor Welshpool, Montgomeryshire
- David Jonathan, farmer and drover Dihewyd, Cardiganshire
- Roger Jones, attorney Talgarth, Brecknockshire
- Frances Jones, shopkeeper Talysarn, Caernarfonshire
- David Jones, carpenter Llangammarch, Brecknockshire
- John Jones, farmer, Ffynnowen Llangunllo, Radnorshire
- Jones, Jones & Davies, bankers Monmouth, Monmouthshire
- Jones & Morris, sailmakers Portmadoc, Caernarfonshire
- Jones & Morris, solicitors
- D & T Jones, grocers Aberystwyth, Cardiganshire
- Daniel R Jones, carpenter and joiner Tyddyn Y Bwlch, Merionethshire
- David Jones, grocer Bala, Merionethshire
- David Jones, tailor Lampeter, Cardiganshire
- DTM Jones & Co, solicitors Llandovery, Carmarthenshire
- Jones family, farmers, Henblas, Caersws Llanwnnog, Montgomeryshire
- Griffith Jones, solicitor Aberystwyth, Cardiganshire
- Hugh Davies Jones, physician Mountain Ash, Glamorgan
- Hugh Parry Jones, bonesetter Llanerchymedd, Anglesey
- James Jones and D A Rees, blacksmiths Llannarth, Cardiganshire
- John Jones, cabinet maker, builder and undertaker Henllan, Cardiganshire
- John Jones, carpenter Devil's Bridge, Cardiganshire
- John Jones, farmer Atcham, Shropshire
- John Jones, farmer, Ffynnonlwyd Llanginning, Carmarthenshire
- John Jones, farmer, Fro Llanfihangel Ystrad, Cardiganshire
- John Jones, farmer, Fron-wen Llangerniew, Denbighshire
- JT Jones, printer and publisher Aberdare, Glamorgan
- Richard Jones, builder and wheelwright Llanwnda, Caernarfonshire
- Rowland Jones, barrister
- T Simpson Jones, barrister Montgomeryshire;Powys
- Thomas Jones, blacksmith Caerwedros, Cardiganshire
- Thomas Davies Jones, solicitor
- Thomas Jones, weaver Bronant, Cardiganshire
- W and J Jones, farmers, Tanycastell Aberystwyth, Cardiganshire
- William Jones, building contractor Neath, Glamorgan
- Kidwelly & Llanelly Canal Co Carmarthenshire;Dyfed
- Kidwelly Tin Plate Co Ltd Kidwelly, Carmarthenshire
- King's Head Hotel Newport, Monmouthshire
- Knighton Railway Co Knighton, Radnorshire
- Lampeter, Aberayron & New Quay Light Railway Co Cardiganshire;Dyfed
- Lampeter Gas Co Lampeter, Cardiganshire
- Leslie ME Lea, Glanfraed Farm Llandre, Cardiganshire
- Abraham Leach, lead mine agent Llanvirnach, Pembrokeshire
- Lead & Zinc Concentrates Ltd Tal-y-bont, Cardiganshire
- George P Lee Ltd, general warehousemen and furnishings manufacturers Manchester, Lancashire
- John Legonna, farmer and Welsh nationalist, Cards Cardiganshire;Dyfed
- Leighton furnace Leighton, Shropshire
- Lerry Woollen Mills Tal-y-bont, Merionethshire
- Daniel Lewis, physician Llangeitho, Cardiganshire
- Humphrey and David Lewis, blacksmiths Bryncrug, Merionethshire
- John Lewis, bootmaker Llandybi, Carmarthenshire
- M Lewis, farmer and business man Carmarthen, Carmarthenshire
- Rees Lewis, printer and publisher Merthyr Tydfil, Glamorgan
- Lisburne Development Syndicate Ltd, lead mining company Cardiganshire;Dyfed
- Lisburne Mines Co Ltd Cardiganshire;Dyfed
- Llandovery & District Agricultural Co-operative Society Ltd Llandovery, Carmarthenshire
- Llandovery Weighing Machine Co Llandovery, Carmarthenshire
- Llandudno New Mine Co, copper miners Caernarfonshire;Gwynedd
- Llandudno Old Copper Mine Co Caernarfonshire;Gwynedd
- Llandyssul Market Co Llandyssul, Cardiganshire
- Llanidloes Mining & Machinery Co Ltd Llanidloes, Montgomeryshire
- Llanidloes Welsh Flannel Tweed & Wool Stapling Co Llanidloes, Montgomeryshire
- Llansantffraid & Llanfyllin Coal Co Montgomeryshire;Powys
- Llanvihangel Rail Way Monmouthshire
- D Lloyd & Son, solicitors Lampeter, Cardiganshire
- Lloyd, Herbert & Jones, auctioneers Aberystwyth, Cardiganshire
- Herbert Lloyd and other solicitors Carmarthenshire;Dyfed
- JD Lloyd & Sons, monumental masons Aberaeron, Cardiganshire
- John Lloyd & Co, timber merchants Aberystwyth, Cardiganshire
- John Lloyd, attorney Denbighshire;Clwyd
- Rev Hugh Lloyd, farmer Mold, Flintshire
- Thomas Lloyd, farmer Alltycadno, Carmarthenshire
- Tom Lloyd-Roberts, antiquarian bookseller Caerwys, Flintshire
- William Lloyd, butcher Cardigan, Cardiganshire
- Llwyngwair Estates Co Llwyngwair, Pembrokeshire
- Llwyngwern & Maglona Quarries Llwyngwern, Merionethshire
- London Assurance Corporation London
- Longueville & Co, solicitors Oswestry, Shropshire
- Loughour parish, coal mines Loughour, Glamorgan
- RK Lucas & Son, land and estate agent and valuer Haverfordwest, Pembrokeshire
- Macclesfield Brewery & Wine Co Ltd Macclesfield, Cheshire
- Machen and Tredegar forges Machen, Monmouthshire
- Machynlleth Gas Co Ltd Machynlleth, Montgomeryshire
- Machynlleth Town Hall Co Ltd Machynlleth, Montgomeryshire
- Made In Wales Stage Company Cardiff, Glamorgan
- Maesmarchog Stone Coal Colliery Cadoxton-juxta-Neath, Glamorgan
- Maesnewydd Farm Tal-y-bont, Cardiganshire
- Mallum family, cider makers Speen, Berkshire
- Manchester & Milford Railway Co
- Market Gate Farm Jeffreston, Pembrokeshire
- Thomas Edmund Marsh, solicitor Llanidloes, Montgomeryshire
- Melingriffith Co Ltd, tinplate and iron manufacturers Cardiff, Glamorgan
- Merionethshire Permanent Benefit Building Society Blaenau Festiniog, Merionethshire
- Merionethshire Railway Company Merionethshire;Gwynedd
- Merthyr, Tredegar & Abergavenny Railway Co Merthyr, Carmarthenshire
- John Mills & Co (Llanidloes) Ltd, engineers and ironfounders Llanidloes, Montgomeryshire
- Milwr Mine Co, lead mine Flintshire;Clwyd
- Minera lead mine Minera, Denbighshire
- Minera Silica Co Ltd Denbighshire;Clwyd
- Moelferna Quarries Ltd Merionethshire;Gwynedd
- Mold Railway Co Mold, Flintshire
- Monmouth Hotel Co Monmouth, Monmouthshire
- Monmouth Saw Mills Co Ltd Monmouth, Monmouthshire
- Montgomeryshire Canal Co Montgomeryshire;Powys
- Montgomeryshire Haulage Co Newtown, Montgomeryshire
- Monydd-Gorddu Lead Mine Co Ltd Cardiganshire;Dyfed
- Morgan & Sons, butchers Cardigan, Cardiganshire
- David Morgan, iron manufacturer Llanfihangel Geneu'r Glynn, Cardiganshire
- Morgan Griffiths, Prosser & Trant, solicitors Carmarthen, Carmarthenshire
- John Morgan & Co, iron manufacturers Carmarthen, Carmarthenshire
- Thomas Morgan, solicitor Cardigan, Cardiganshire
- Morgan's Bank Carmarthen, Carmarthenshire
- Morgan Morgans, miller Machynlleth, Montgomeryshire
- Morris & Son, Cambrian Establishment, drapers, tailors and dressmakers Barmouth, Merionethshire
- Morris and Williams, smiths Solva, Pembrokeshire
- David Morris & Sons Carmarthen, Carmarthenshire
- Morris E Morris, chemist, druggist, grocer and tea dealer Portmadoc, Caernarfonshire
- J & M Morris Ltd, ironfounders Welshpool, Montgomeryshire
- W Morris & Co, ship chandlers and ironmongers Portmadoc, Caernarfonshire
- Nant y Fedw Farm Betws-yn-Rhos, Denbighshire
- Nantiago Mine Ltd
- Neath Canal Navigation Co Neath, Glamorgan
- Nevill, Druce & Co, copper smelters and colliery owners Llanelli, Carmarthenshire
- New Quay Harbour Co New Quay, Cardiganshire
- New Wear forge Herefordshire
- Newman, Paynter & Co, solicitors Yeovil, Somerset
- Newtown & Machynlleth Railway Co Monmouthshire;Gwent
- North & South Wales Coal and Lime Company
- North Cheshire Brewery Co Ltd Macclesfield, Cheshire
- North Wales Employers Mutual Indemnity Co Ltd Wrexham, Denbighshire
- North Wales Quarries Ltd
- Norwich Union Fire Insurance Society Norwich, Norfolk
- Ocean Coal Co Ltd, colliery proprietors Treorchy, Glamorgan
- John Oldbury & Henry Stanley, merchants London
- Owen & Griffiths, bank Welshpool, Montgomeryshire
- Dafydd Owen Fawr, corn merchant Trawsfynydd, Merionethshire
- David Owen & Son, threshing machine manufacturers Newtown, Montgomeryshire
- David Owen, grocer Trawsfynydd, Merionethshire
- Edward Owen Dolgellau, Merionethshire
- Emrys Bennett Owen, auctioneer and surveyor Dolgellau, Merionethshire
- Evan Owen, farmer, Llwynygog Trefeglwys, Montgomeryshire
- Owen family, farmers, Summerhill Roch, Pembrokeshire
- Griffith Owen, carpenter Aberdovey, Merionethshire
- Griffith Owen, farmer, Vaner Llanelltyd, Merionethshire
- John Owen & Co, ship broker Caernarfon, Caernarfonshire
- Richard Owen, ironmonger, coach builder, joiner and undertaker Glasmor, Denbighshire
- Robert Owen, auctioneer and valuer Welshpool, Montgomeryshire
- Robert Owen, blacksmith Trawsfynydd, Merionethshire
- David Owens, haulier Dolgellau, Merionethshire
- Pantdreiniog Slate Quarry Co Ltd Llanllechid, Caernarfonshire
- Charles Parry, solicitor Aberystwyth, Cardiganshire
- Parys Mine, Amlwch, Anglesey
- David Peate, carpenter and wheelwright Llanbryn-mair, Montgomeryshire
- Pembroke & Tenby Railway Co Pembrokeshire;Dyfed
- Pembrokeshire Iron & Coal Co Pembrokeshire;Dyfed
- Pembry Colliery Pembry, Carmarthenshire
- Pen-y-Cefn Lead Mine Pen-y-cefn, Flintshire
- Pen-y-garreg tin mine Pen-y-garreg, Denbighshire
- Penbryn & Crannog Co-operative Society Penbryn, Cardiganshire
- Penrhyn Quarries Ltd, slate quarries Bethesda, Caernarfonshire
- Penrhyndeudraeth Lead Mining Co Penrhyndeudraeth, Merionethshire
- William Perkins, printer Haverfordwest, Pembrokeshire
- Philipps family, coal mine owners Pembrokeshire;Dyfed
- John Philipps, solicitor Llandilo, Carmarthenshire
- Phillips family, farmers Tal-y-bont, Cardiganshire
- Phillips family, masons Mydrim, Carmarthenshire
- James Phillips, ironmonger Stourbridge, Worcestershire
- John William Phillips, snr & jnr, solicitors Haverfordwest, Pembrokeshire
- John Phillips, wine merchant Haverfordwest, Pembrokeshire
- Nathaniel Phillips, sugar planter and merchant Kingston, Jamaica
- R Phillips, solicitor Shropshire;Shropshire
- Phoenix Tinplate Co Ltd Lower Cwmtwrch, Brecknockshire
- Planet, magazine Llangeitho, Cardiganshire
- Plymouth Ironworks & Collieries Merthyr Tydfil, Glamorgan
- Arthur Pollard, merchant Aleppo, Turkey
- Pontardulais Gas Co (1930) Ltd Pontarddulais, Glamorgan
- Pontithel Chemical Co Three Cocks, Brecknockshire
- Pontnewynydd Brewery Pontnewynydd, Monmouthshire
- Pontyberem Colliery Co Ltd Pontyberem, Caernarfonshire
- Pontypool Iron & Tinplate Co Pontypool, Monmouthshire
- Porthamal Lime Works Brecknockshire;Powys
- Powell Brothers Ltd, mechanical engineers Wrexham, Denbighshire
- Harry Powell, clogger Llandingat, Carmarthenshire
- Powles & Tyler, solicitors Monmouth, Monmouthshire
- Precelly Green & Rustic Slate Co Portmadoc, Caernarfonshire
- Preselly Slate Quarry Pembrokeshire;Dyfed
- DW Price, carpenter and undertaker Felindre, Brecknockshire
- Daniel Price, solicitor Talley, Carmarthenshire
- Thomas Price, hosier and yarn and flannel manufacturer Llanrhystud, Cardiganshire
- Pughe & Jones, solicitors Llanfyllin, Montgomeryshire
- Pwllcarn Colliery Co
- Pwllcenawon Farm Penllwyn, Cardiganshire
- Randall & Co, solicitors Bridgend, Glamorgan
- Ratgoed & Cymerau Quarries Talyllyn, Merionethshire
- Harry Ray & Co, chartered surveyors, auctioneers and valuers Welshpool, Montgomeryshire
- David Rees, farmer, Penblodeuyn Llanilar, Cardiganshire
- J Rees & Sons, sawmillers Broad Oak, Carmarthenshire
- Thomas Rees, general merchant Llanfihangel ar Arth, Carmarthenshire
- Resolven colliery Resolven, Glamorgan
- Rheidol Mining Co Ltd Aberystwyth, Cardiganshire
- Rhiwarth and Llanygog slate quarries Rhiwarth, Montgomeryshire
- Rhiwbach Slate Quarry Blaenau Festiniog, Merionethshire
- Rhondda & Swansea Bay Railway Co Swansea, Glamorgan
- Rhoswydol lead mine Rhoswydol, Montgomeryshire
- John Richard, architect and surveyor Swansea, Glamorgan
- Roderick Richard and Roderick Rees, glovers Llanbadarn Fawr, Cardiganshire
- Charles Richards & Sons, solicitors Llangollen, Denbighshire
- Thomas Richards, grocer Pontrhydfendigaid, Cardiganshire
- John Roberts, solicitor Bangor, Caernarfonshire
- Roberts & Evans, solicitors, Aberystwyth Aberystwyth, Cardiganshire
- Edward Roberts, grocer Bala, Merionethshire
- Edward Roberts, grocer and tea dealer Swansea, Glamorgan
- Richard Roberts & Sons, timber merchants Aberystwyth, Cardiganshire
- Roderick Roderick, drover
- Ruabon Coal & Coke Co Wrexham, Denbighshire
- Ruabon furnace and Pont y Blew forge Ruabon, Denbighshire
- Thomas Sandys, draper London
- Sayce & Sons, butchers Welshpool, Montgomeryshire
- John Sewell, oilman and provision merchant London
- Sheinton forge Sheinton, Shropshire
- Shrewsbury & Welshpool Railway Co
- Shropshire Union Railway & Canal Co Shropshire;Shropshire
- John Simon, merchant Lostwithiel, Cornwall
- William Simon, blacksmith Llansadwrn, Carmarthenshire
- Simons family, solicitors Merthyr Tydfil, Glamorgan
- Siop y Jones Llandyssul, Cardiganshire
- Sirhowy Railway Co Sirhowy, Monmouthshire
- Snell & Sons, music publishers Swansea, Glamorgan
- Snowdon Slate Quarries Ltd Caernarfonshire;Gwynedd
- South Cardiganshire Lead Mining Co Cardiganshire;Dyfed
- South Darren Lead Mining Co Aberystwyth, Cardiganshire
- South Hafod Mining Co, lead miners Cardiganshire;Dyfed
- South Plynlymon lead mine South Plynlymon, Cardiganshire
- South Wales Railway Co
- Super Furry Animals, rock band
- Swansea Old Brewery & Davies (Cardigan) Bonded Stores Ltd Cardigan, Cardiganshire
- Swansea Vale Railway Co Swansea, Glamorgan
- Swansea Valley Canal
- Tabernacle Penny Savings Bank Liverpool, Lancashire
- Talybont Lead Mine Tal-y-bont, Cardiganshire
- Talyllyn Railway Co Towyn, Merionethshire
- Tanyrallt Lead Mine Cardiganshire;Dyfed
- Television Wales & The West Ltd London
- Tenby & Begelly Coal Co Tenby, Pembrokeshire
- Owen Thomas, smith Bethesda, Caernarfonshire
- D Thomas, chemist Cardiff, Glamorgan
- Thomas family, grocers, drapers & chemists Machynlleth, Montgomeryshire
- Griffith Thomas, farmer Coedcanlass, Pembrokeshire
- James Thomas & Son, estate agents, surveyors and valuers Haverfordwest, Pembrokeshire
- John Thomas, carpenter and undertaker Dinas Cross, Pembrokeshire
- JW Thomas & Sons, printers Llandeilo, Carmarthenshire
- Thomas Thomas, tailor Llanarthne, Carmarthenshire
- WG Stedman Thomas, wine and spirit merchant Carmarthen, Carmarthenshire
- Tivyside Advertiser, newspaper Cardigan, Cardiganshire
- Towyn Co, slate mines Towyn, Merionethshire
- Tredegar Iron & Coal Co Ltd, colliery owners and steel manufacturers Tredegar, Monmouthshire
- Tredegar Wharf Co Tredgar, Monmouthshire
- Tregarth Building Society Tregarth, Caernarfonshire
- Trewern Hall Farm Buttington, Montgomeryshire
- Trewyddfa Canal
- Union Iron Company Rhymney, Monmouthshire
- United Westminster & Wrexham Collieries Ltd Wrexham, Denbighshire
- Vale of Clwyd Railway Co Denbighshire;Clwyd
- Vale of Llangollen Railway Co Llangollen, Denbighshire
- Vale of Towy Railway Co
- Van Lead Mine Llanidloes, Montgomeryshire
- David Vaughan, architect and surveyor Bonvilston, Glamorgan
- Evan Vaughan, upholsterer and cabinet maker Carmarthen, Carmarthenshire
- Vaughan Mines Co Ltd Crosswood, Cardiganshire
- Vivian & Sons Ltd, copper smelters Swansea, Glamorgan
- H.H.Vivian and Co Ltd, brass, copper and nickel tube mfrs Birmingham, Warwickshire
- Vizard & Son, solicitors Monmouth, Monmouthshire
- William Wakelin, solicitor Presteigne, Radnorshire
- John Watkins, blacksmith Llangurig, Montgomeryshire
- Welsh Colonising & General Trading Co Ltd (Patagonia)
- Welsh Drama Company
- Welsh Granite Co Ltd Trevor, Caernarfonshire
- Welsh Lead and Zinc Ltd Cardiganshire;Dyfed
- Welsh Mines Corporation Ltd
- Welsh National Opera Company Ltd
- Welsh National Theatre Co Cardiff, Glamorgan
- Welsh Patagonian Gold Fields Syndicate Ltd
- Welsh Slate Co Moel Wyn Mawr, Merionethshire
- Welsh Teldisc Records Ltd
- The Welsh Outlook
- Welsh Van Mining Co Ltd, lead mines Llanidloes, Montgomeryshire
- Welshpool Gas Co Welshpool, Montgomeryshire
- Welshpool Woollen Co Welshpool, Montgomeryshire
- Wern & Truro Lead Mining Co
- Wern Mill Farm Llanarth, Cardiganshire
- Western Mail & Echo Ltd, newspaper proprietors Cardiff, Glamorgan
- Wheal Towan Adventurers, copper miners Cornwall;Cornwall
- Whitchurch furnace Whitchurch, Herefordshire
- White Grit Mining Co Maesbury, Shropshire
- Whitland Abbey Slate Quarries Whitland, Carmarthenshire
- Edward Rumsey Williams, solicitor Caernarfon, Caernarfonshire
- David Williams, attorney Carmarthenshire;Dyfed
- David Williams, shoemaker Tregaron, Cardiganshire
- Evan Williams, farmer, Gwyndy Tydweiliog, Caernarfonshire
- Evan Williams, grocer and coal merchant Llanfrothen, Merionethshire
- Lewis Ambrose Williams, mineral surveyor, Cardiff Cardiff, Glamorgan
- RH Williams Associates, architects Caernarfon, Caernarfonshire
- Samuel Williams, printers, stationers and booksellers Aberystwyth, Cardiganshire
- Samuel Williams, ship broker Liverpool, Lancashire
- Thomas Williams, mason and foreman Aberystwyth, Cardiganshire
- William Williams & William Davies, blacksmiths Llangwyryfon, Cardiganshire
- Williams, Gittins & Tomley, solicitors, Newtown Newtown, Monmouthshire
- Wood & Sons, solicitors Cardiff, Glamorgan
- Wrexham & Acton Colliery Co Wrexham, Denbighshire
- Wrexham, Mold & Connahs Quay Railway Co Wrexham, Denbighshire
- Wrysgan Slate Quarry Co Ltd Blaenau Festiniog, Merionethshire
- Ynys-Cedwyn Company Ltd Yniscedwyn, Brecknockshire
- Ystradgynlais & Swansea Colliery Co Ltd Ystradgynlais, Brecknockshire
- Farm Mostyn, Flintshire
- Farm Cardiganshire;Dyfed
- Farm Cardiganshire;Dyfed
- Farm Cardiganshire;Dyfed
- Farm West Walton, Pembrokeshire
- Farm Guilsfield, Montgomeryshire
- General merchant Caernarfon, Caernarfonshire
- General merchant Trawsfynydd, Merionethshire
- General store Mydroilin, Cardiganshire
- General store Strata Florida, Cardiganshire
- Grocer Trawsfynydd, Merionethshire
- Grocer Llanuwchllyn, Merionethshire
- Grocer London
- Joiner Llandeilo, Radnorshire
- Lawyer Denbighshire;Clwyd
- Lawyer Herefordshire
- Manure merchant Cardiganshire;Dyfed
- Merchant London
- Merchant Denbighshire;Clwyd
- Provision merchant London
- Provision merchant London
- Quarry Pembrokeshire;Dyfed
- Saddler Cardigan, Cardiganshire
- Seed merchant Flintshire;Clwyd
- Ship chandler and lime merchant Cardigan, Cardiganshire
- Shipper Caernarfonshire;Gwynedd
- Shoemaker Melibyrhedyn, Montgomeryshire
- Shoemaker Trawsfynydd, Merionethshire
- Shoemaker Corwen, Merionethshire
- Shopkeeper Cardigan, Cardiganshire
- Shopkeeper Pennant, Montgomeryshire
- Shopkeeper Gartheli, Cardiganshire
- Shopkeeper Welshpool, Montgomeryshire
- Shopkeeper New Quay, Cardiganshire
- Shopkeeper Llandyssul, Cardiganshire
- Solicitor Pembrokeshire;Dyfed
- Stonemason Cardiganshire;Dyfed
- Unnamed apothecary, Cardiganshire Cardiganshire
- Unnamed attorney, Wales Wales
- Unnamed auctioneer, Pembrokeshire Pembrokeshire
- Unnamed bank, London London
- Unnamed bank, Wales?
- Unnamed blacksmith, East Glamorganshire Glamorgan
- Unnamed blacksmith, Llanilar Llanilar, Cardiganshire
- Unnamed blacksmith, Llaninar Llaninar, Cardiganshire
- Unnamed blacksmith, Llanrhystyd Llanrhystyd, Cardiganshire
- Unnamed blacksmith, Machen Machen, Monmouthshire
- Unnamed blacksmith, Pumpsaint Pumpsaint, Carmarthenshire
- Unnamed blacksmith, Rhiwlas Rhiwlas, Caernarfonshire
- Unnamed blacksmith, Trecastell Trecastell, Brecknockshire
- Unnamed bootmaker, Llanuwchllyn Llanuwchllyn, Merionethshire
- Unnamed brewer, Anglesey Anglesey
- Unnamed carpenter, Bala Bala, Merionethshire
- Unnamed cooper and farmer, Merionethshire Merionethshire
- Unnamed corn merchant, Pembrokeshire Pembrokeshire
- Unnamed doctor, Caernarfonshire Caernarfonshire
- Unnamed doctor, Cardigan Cardigan, Cardiganshire
- Unnamed doctor, Manchester Manchester, Lancashire
- Unnamed draper, Carmarthen Carmarthen, Carmarthenshire
- Unnamed drover, Trawsfynydd Trawsfynydd, Merionethshire
- Unnamed farm, Caernarfonshire Caernarfonshire
- Unnamed farm, Carmarthenshire Carmarthenshire
- Unnamed farm, Denbighshire Denbighshire
- Unnamed farm, Denbighshire Denbighshire
- Unnamed farm, Pembrokeshire Pembrokeshire
- Unnamed farm, Stockyn Stockyn, Flintshire
- Unnamed plumber and glazier, Machynlleth Machynlleth, Montgomeryshire
- Unnamed shopkeeper, Rhoslan Rhoslan, Caernarfonshire
- Unnamed tradesman, Aberystwyth Aberystwyth, Cardiganshire
- Wine spirit & provision merchant Haverfordwest, Pembrokeshire
Organisations (2060)
- Aberaeron (Aberayron) Post Office Aberaeron, Cardiganshire
- Aberayron Urban District Council Aberayron, Cardiganshire
- Aeron Benefit Society, Aberaeron Aberaeron, Cardiganshire
- The Aberaeron Club (benefit society) Aberaeron, Cardiganshire
- Aberaeron Union Sanitary Authority and Rural District Council Aberaeron, Cardiganshire
- Aberavon parish Aberavon, Glamorgan
- Aberdare District Baptist Choral Union Aberdare, Glamorgan
- Aberdovey customs Aberdovey, Merionethshire
- Aberduar Baptist Chapel, Llanybydder Llanybydder, Carmarthenshire
- Aberduar Baptist Church Aberduar, Carmarthenshire
- Aberfan Disaster Fund Aberfan, Glamorgan
- Abergavenny District Turnpike Trust Abergavenny, Monmouthshire
- Abergavenny Eisteddfod and Fetes Society Abergavenny, Monmouthshire
- Abergorlech Congregational Chapel, Llanybydder Llanybydder, Carmarthenshire
- Abergwili Clothing Club Abergwili, Carmarthenshire
- Abergwili Sick Club Abergwili, Carmarthenshire
- Abergwili tithes Abergwili, Carmarthenshire
- Aberhafesp parish Aberhafesp, Montgomeryshire
- Aberlunvey parish Aberllunvey, Brecknockshire
- Abermeurig Calvinistic Methodist Chapel, Gartheli Gartheli, Cardiganshire
- Aberystwyth and District Congregational Ministers Fraternal Aberystwyth, Cardiganshire
- Aberystwyth and District Football League Aberystwyth, Cardiganshire
- Aberystwyth and District Old Peoples Housing Society and The Deva Old Peoples Home Aberystwyth, Cardiganshire
- Aberystwyth and University Music Society Aberystwyth, Cardiganshire
- Aberystwyth Baptist College Aberystwyth, Cardiganshire
- Aberystwyth Bibliographical Group Aberystwyth, Cardiganshire
- Aberystwyth Borough Aberystwyth, Cardiganshire
- Aberystwyth Borough Choir Aberystwyth, Cardiganshire
- Aberystwyth Borough Choral Society Festivals Aberystwyth, Cardiganshire
- Aberystwyth Bowling Club Aberystwyth, Cardiganshire
- Aberystwyth Congregational Sunday Schools Aberystwyth, Cardiganshire
- Aberystwyth Constituency Labour Party Aberystwyth, Cardiganshire
- Aberystwyth District Calvinistic Methodist Singing Festival Aberystwyth, Cardiganshire
- Aberystwyth District of Calvinistic Methodist Sunday Schools Aberystwyth, Cardiganshire
- Aberystwyth District Welsh Presbyterian Churches Annual Singing Festival Aberystwyth, Cardiganshire
- Aberystwyth English Congregational Church Sunday school Aberystwyth, Cardiganshire
- Aberystwyth English Wesleyan Methodist Circuit Aberystwyth, Cardiganshire
- Aberystwyth Free Church Council Aberystwyth, Cardiganshire
- Aberystwyth Gardens and Allotments Association Aberystwyth, Cardiganshire
- Aberystwyth Harbour Trustees Aberystwyth, Cardiganshire
- Aberystwyth Harmonic Society Aberystwyth, Cardiganshire
- Aberystwyth Horse Show Aberystwyth, Cardiganshire
- Aberystwyth Inundation Fund Aberystwyth, Cardiganshire
- Aberystwyth Liberal Association Aberystwyth, Cardiganshire
- Aberystwyth Lying-in Aid and Dorcas Societies Aberystwyth, Cardiganshire
- Aberystwyth Male Voice Choir Aberystwyth, Cardiganshire
- Aberystwyth National School Aberystwyth, Cardiganshire
- Aberystwyth Nuclear Weapons Committee Aberystwyth, Cardiganshire
- Aberystwyth Old Social Club Aberystwyth, Cardiganshire
- Aberystwyth parish Aberystwyth, Cardiganshire
- Aberystwyth Peace Network Aberystwyth, Cardiganshire
- Aberystwyth Penny Readings Society Aberystwyth, Cardiganshire
- Aberystwyth physical drill class Aberystwyth, Cardiganshire
- Aberystwyth Provident Club Aberystwyth, Cardiganshire
- Aberystwyth Registration District Aberystwyth, Cardiganshire
- Aberystwyth Religion and Life Council of Churches Aberystwyth, Cardiganshire
- Aberystwyth Rural District Council Aberystwyth, Cardiganshire
- Aberystwyth shipping records Aberystwyth, Cardiganshire
- Aberystwyth South Wales Distress Fund Aberystwyth, Cardiganshire
- Aberystwyth Temperance Society Aberystwyth, Cardiganshire
- Aberystwyth Unitarian Congregation Aberystwyth, Cardiganshire
- Aberystwyth War Memorial Committee Aberystwyth, Cardiganshire
- Aberystwyth War Service Committee Aberystwyth, Cardiganshire
- Aberystwyth Womens Liberal Federation Aberystwyth, Cardiganshire
- Aberystwyth, Llanbadarn and District Nursing Association Aberystwyth, Cardiganshire
- Abyssinian Association
- Acton parish Acton, Denbighshire
- Adfa Calvinistic Methodist Chapel, Llanwyddelan Llanwyddelan, Montgomeryshire
- Adpar Borough Adpar, Cardiganshire
- Adulam Baptist Church, Felinfoel Felinfoel, Carmarthenshire
- Adwy and Coedpoeth British School Coedpoeth, Denbighshire
- Aelwyd Yr Urdd, Aberystwyth Aberystwyth, Cardiganshire
- Agenoria, brig
- Ala Road Literary Society, Pwllheli Pwllheli, Caernarfonshire
- Alcester Presbyterian Chapel Alcester, Warwickshire
- Alexandra
- Alexandra Road/Lewis Terrace Soar United Free Methodist Chapel, Aberystwyth Aberystwyth, Cardiganshire
- Alltwen Recreation Ground Alltwen, Glamorgan
- Amalgamated Association of Miners of the Anthracite Districts
- Amalgamated Society of Carpenters and Joiners: Aberystwyth lodge (possibly General Union of Carpenters and Joiners) Aberystwyth, Cardiganshire
- Amalgamated Union of Building Trade Workers: Merthyr Tudful branch Merthyr Tydfil, Glamorgan
- Ambleston estate Ambleston, Pembrokeshire
- Amity, sloop, of Aberdovey
- Ammanford Debating Society Ammanford, Carmarthenshire
- Amor Baptist Chapel, Llanfynydd Llanfynydd, Carmarthenshire
- Ancient Order of Foresters: Welshpool, Court Powis 1505 Welshpool, Montgomeryshire
- Angel Benefit Society, Dolgellau Dolgellau, Merionethshire
- Anglesey Court of Great Sessions Anglesey;Gwynedd
- Anglesey militia Anglesey;Gwynedd
- Anglo-Ethiopian Society
- Ann Pritchard, smack, of Pwllheli
- Anti-Apartheid Movement: Welsh branch Wales
- Ardudwy Rural Deanery Ardudwy, Merionethshire
- Arennig Calvinistic Methodist Chapel, Llanycil Llanycil, Merionethshire
- Arfon District Calvinistic Methodist sunday schools Arfon, Caernarfonshire
- Argoed Baptist Chapel, Tregaron (Caron-is-clawdd) Caron-is-clawdd, Cardiganshire
- Bwlch-Gwynt Calvinistic Methodist Chapel, Tregaron (Caron-is-clawdd) Caron-is-clawdd, Cardiganshire
- Arthog and Llwyngwril District Nursing Association Arthog, Merionethshire
- Askeaton Borough Askeaton, County Limerick
- Association of Artists and Designers in Wales: Ceredigion branch Cardiganshire;Dyfed
- Association of Chief Education Officers (Wales)
- Association of Visual Arts in Wales (formerly the Association of Artists and Designers in Wales)
- Association of Welsh Local Authorities
- Aston Chapel Aston, Shropshire
- Aston Confederate Hunt Aston, Shropshire
- Aubrey Memorial Wesleyan Methodist Chapel, Cefncoedycymer (Vaynor) Vaynor, Brecknockshire
- Avon
- Bailey Street Wesleyan Methodist Chapel, Brynmawr Brynmawr, Brecknockshire
- Bala Choral Society Bala, Merionethshire
- Bala Methodist Congregation Bala, Merionethshire
- Bala parish Bala, Merionethshire
- Bala Poor Law Union Bala, Merionethshire
- Bala Theological College Bala, Merionethshire
- Bala Union and Penllyn Rural District Council Bala, Merionethshire
- Balliol Road Baptist Church, Bootle Bootle, Lancashire
- Balliol Road Baptist Church, Liverpool Liverpool, Lancashire
- Bancyfelin Calvinistic Methodist Chapel, Llanfihangel Abercywyn Llanfihangel Abercywyn, Carmarthenshire
- Bangor Diocesan Tract Society Bangor, Caernarfonshire
- Bangor Diocese Bangor, Caernarfonshire
- Bangor tithes Bangor, Flintshire
- Baptist Churches General Assembly
- Baptist Missionary Society: Llyn and Eifionnydd Womens Auxiliary Llyn, Caernarfonshire
- Joseph Foster Barham: Trecoon Trecoon, Pembrokeshire
- Barmouth Harbour Trust Barmouth, Merionethshire
- Barmouth Library Barmouth, Merionethshire
- Barry Liberal Association Barry, Glamorgan
- Bassaleg parish Bassaleg, Monmouthshire
- Baswich Priory (St Thomas by Stafford) Baswich, Staffordshire
- Beaumaris English Calvinistic Methodist Chapel Beaumaris, Anglesey
- Bedwellty parish Bedwellty, Monmouthshire
- Belgian Refugees Committee: Barmouth Barmouth, Merionethshire
- Belgian Refugees Reception Committee, Corwen Corwen, Merionethshire
- Berriew Bible Society Berriew, Montgomeryshire
- Berriew Minor Charities Berriew, Montgomeryshire
- Berriew parish Berriew, Montgomeryshire
- Berth-lwyd and Dol-llys estates Berth-lwyd, Montgomeryshire
- HMS Berwick (1723)
- Bethania Baptist Church, Cynwyd Cynwyd, Merionethshire
- Bethania Calvinistic Methodist Chapel, Llanbadarn Trefeglwys Llanbadarn Trefeglwys, Cardiganshire
- Bethania Calvinistic Methodist Chapel, Llandegla Llandegla, Denbighshire
- Bethania Congregational Church, Llannon Llannon, Carmarthenshire
- Bethania Welsh Baptist Church, Clydach Clydach, Glamorgan
- Bethany Calvinistic Methodist Chapel, Tregynon Tregynon, Montgomeryshire
- Bethel and Bodwydd Calvinistic Methodist churches, Tanygrisiau Tanygrisiau, Merionethshire
- Bethel Baptist Chapel, Cynwyl Gaeo Cynwyl Gaeo, Carmarthenshire
- Bethel Baptist Chapel, Holyhead Holyhead, Anglesey
- Bethel Baptist Church, Aberystwyth Aberystwyth, Cardiganshire
- Bethel Baptist Church, Mynachlogddu Mynachlogddu, Pembrokeshire
- Bethel Baptist Church, Tremarchog Tremarchog, Pembrokeshire
- Bethel Calvinistic Methodist Chapel, Bala Bala, Merionethshire
- Bethel Calvinistic Methodist Chapel, Brecon Brecon, Brecknockshire
- Bethel Calvinistic Methodist Chapel, Cynwyl Elfed Cynwyl Elfed, Carmarthenshire
- Bethel Calvinistic Methodist Chapel, Dinas Mawddy Dinas Mawddy, Merionethshire
- Bethel Calvinistic Methodist Chapel, Dolgellau Dolgellau, Merionethshire
- Bethel Calvinistic Methodist Chapel, Llanidloes Llanidloes, Montgomeryshire
- Bethel Calvinistic Methodist Chapel, Llanpumpsaint Llanpumpsaint, Carmarthenshire
- Bethel Calvinistic Methodist Church, Dyserth Dyserth, Flintshire
- Bethel Congregational Chapel, Tal-y-Bont (Ceulan-a-maesmor) Ceulan-y-maesmor, Cardiganshire
- Bethel Congregational Church, Mold Mold, Flintshire
- Bethel Independent Chapel, Mold Mold, Flintshire
- Bethel Street Calvinistic Methodist Chapel, Llanidloes Llanidloes, Montgomeryshire
- Bethel Welsh Congregational Church, Borth-y-Gest Borth-y-gest, Caernarfonshire
- Bethel Wesleyan Methodist Chapel, Isygarreg Isygarreg, Montgomeryshire
- Bethesda Baptist Church, Haverfordwest Haverfordwest, Pembrokeshire
- Bethesda Congregational Chapel, Llangynog (Llangunnock) Llangynog, Carmarthenshire;Llangunnock, Carmarthenshire
- Bethesda Congregational Chapel, Towyn Towyn, Merionethshire
- Bethesda Welsh Congregational Chapel, Merthyr Tydfil Merthyr Tydfil, Glamorgan
- Bethlehem Calvinistic Methodist Chapel, Colwyn Bay Colwyn Bay, Denbighshire
- Bethlehem Congregational Chapel, Taf-fechan (Vaynor) Vaynor, Brecknockshire
- Bethlehem Congregational Church, Llanharan, Cowbridge Rural Llanharan, Glamorgan;Cowbridge, Glamorgan
- Bethlem Calvinistic Methodist Sunday School, Llandre Llandre, Cardiganshire
- Bethpeor Calvinistic Methodist Chapel, Llanfairpwll Llanfair Pwllgwyngyll, Anglesey
- Bettws Evan parish Bettws Evan, Cardiganshire
- Betws Cedewain Calvinistic Methodist Chapel Betws Cedewain, Montgomeryshire
- Betws Ifan parish Betws Ifan, Cardiganshire
- Beulah Calvinistic Methodist Chapel, New Mills (Manafon) Manafon, Montgomeryshire
- Beulah Congregational Chapel, Betws Ifan Betws Ifan, Cardiganshire
- Beulah Congregational Church, Dyffryn Paith, Llanbadarn-y-Creuddyn Dyffryn Paith, Cardiganshire;Llanbadarn-y-creuddyn, Cardiganshire
- Bieston parish Bieston, Denbighshire
- Birkenhead Cambrian Choral Society Birkenhead, Cheshire
- Birkenhead Eisteddfod Birkenhead, Cheshire
- Birmingham Corporation Birmingham, Warwickshire
- Blackmill Friendly Society Blackmill, Glamorgan
- Blaenau Festiniog Free Church Council Blaenau Festiniog, Merionethshire
- Blaen-plwyf Calvinistic Methodist Chapel, Llanychaearn Llanychaearn, Cardiganshire
- Blaen-y-pant Wesleyan Methodist Chapel, Uwchygarreg Uwchygarreg, Montgomeryshire
- Blaenywaun Baptist Church, St Dogmaels St Dogmaels, Pembrokeshire
- Blake
- Board of Education: Welsh departmental committee
- Bodfari Benefit Society Bodfari, Flintshire
- Bodlith Forest Bodlith, Denbighshire
- Bodwell Bodwell, Caernarfonshire
- Bontdolgadfan Calvinistic Methodist Chapel Bontdolgadfan, Montgomeryshire
- Bontdolgadfan Post Office Bontdolgadfan, Montgomeryshire
- Bont-goch Ebenezer Wesleyan Chapel, Tirymynach Tirymynach, Cardiganshire
- Booth Street Congregational Church, Manchester Manchester, Lancashire
- Bootle and District Welsh Society Bootle, Lancashire
- Bootle Young Wales Society Bootle, Lancashire
- Borough Road Congregational Chapel, Southwark Southwark, Surrey
- Borras Hwfa parish Borras Hwfa, Denbighshire
- Borras Riffri parish Borras Riffri, Denbighshire
- Borth Congregational Church Borth, Cardiganshire
- Borth Parish Council Borth, Cardiganshire
- Borth Ratepayers and Electors Association Borth, Cardiganshire
- Borth Village Improvements Association Borth, Cardiganshire
- Bow Street Congregational Church, Cynnull Mawr Bow Street, Cardiganshire;Cynnull Mawr, Cardiganshire
- Bowman's Charity, Stretham Stretham, Cambridgeshire
- Brecknock Great Forest Commoners Brecknock, Brecknockshire
- Brecknockshire Quarter Sessions and County Court Brecknockshire;Powys
- Brecknockshire Territorial and Auxiliary Forces Association Brecknockshire;Powys
- Brecon and Radnor Constituency Labour Party Brecon, Brecknockshire;Radnor, Radnorshire
- Brecon Archdeaconry Brecknockshire;Powys
- Brecon Beacons National Park Committee Brecknockshire;Powys
- Brecon Borough Brecon, Brecknockshire
- Brecon boroughs elections Brecon, Brecknockshire
- Brecon Chamberlains Brecon, Brecknockshire
- Brecon charities including Games's Hospital Brecknockshire;Powys
- Brecon Court of Great Sessions Brecknockshire;Powys
- Brecon lieutenancy Brecknockshire;Powys
- Brecon militia Brecknockshire;Powys
- Brecon Priory (Dominican) Brecon, Brecknockshire
- Brecon Welsh Congregational Churches Union Brecknockshire;Powys
- Brecon: sheriff Brecknockshire;Powys
- Breconshire elections Brecknockshire;Powys
- Breconshire Harriers Brecknockshire;Powys
- Breconshire Turnpike Trust Brecknockshire;Powys
- Bridgend District Naturalists Society Bridgend, Glamorgan
- Bridgend Original Members Discussion Society Bridgend, Glamorgan
- Britannia
- Britannia, sloop
- Brithdir Brithdir, Merionethshire
- British and Foreign Bible Society: Aberystwyth and North Cardiganshire auxiliary Cardiganshire;Dyfed
- British and Foreign Bible Society: Borth Borth, Cardiganshire
- British and Foreign Bible Society: Chester auxiliary, Cambrian branch Chester, Cheshire
- British and Foreign Bible Society: Cwmaman auxiliary Cwmaman, Glamorgan
- British and Foreign Bible Society: Hope branch Hope, Flintshire
- British and Foreign Bible Society: Llanbryn-mair auxiliary Llanbryn-mair, Montgomeryshire
- British and Foreign Bible Society: Llandeilo auxiliary branch Llandeilo, Carmarthenshire
- British and Foreign Bible Society: Llandeilo Fawr auxiliary Llandeilo Fawr, Carmarthenshire
- British and Foreign Bible Society: Llandyssul auxiliary Llandyssul, Cardiganshire
- British and Foreign Bible Society: Llanfyllin auxiliary Llanfyllin, Montgomeryshire
- British and Foreign Bible Society: Lleyn and Eifionydd (later Pwllheli) auxiliary Lleyn, Caernarfonshire
- British and Foreign Bible Society: London Welsh auxiliary London
- British and Foreign Bible Society: Rhymni Rhymni, Monmouthshire
- British and Foreign Bible Society: Tremadoc auxiliary Tremadoc, Caernarfonshire
- British Beekeepers Association: Breconshire and Radnorshire branch Brecknockshire;Radnorshire;Powys
- British Beekeepers Association: Denbighshire branch Denbighshire;Clwyd
- British Beekeepers Association: Ruthin branch Ruthin, Denbighshire
- British Beekeepers Association: Wales branch
- British Beekeepers Association: Wrexham and East Denbighshire branch Wrexham, Denbighshire
- British Medical Association: South Wales and Monmouthshire branch
- British Vigilance Association: Cardiff and district Citizens Union Cardiff, Glamorgan
- Briton Ferry Labour Party Briton Ferry, Glamorgan
- Broad Street Primitive Methodist Chapel, Knighton Knighton, Radnorshire
- Bromfield Priory Bromfield, Shropshire
- Brongwyn parish Brongwyn, Cardiganshire
- Brongwyn Parish Council Brongwyn, Cardiganshire
- Brook Street Primitive Methodist Chapel, Welshpool Welshpool, Montgomeryshire
- Bryn Mair Congregational Chapel, Blaen-porth Blaenporth, Cardiganshire
- Bryn Mawr Calvinistic Methodist Church, Betws-y-Coed Betws-y-coed, Caernarfonshire
- Bryn-coch Wesleyan Methodist Chapel, Llanymawddwy Llanymawdwy, Merionethshire
- Brynhyfryd Baptist Church, Ebbw Vale Ebbw Vale, Monmouthshire
- Brynhyfryd Baptist Church, Swansea Swansea, Glamorgan
- Brynkinalt Auxiliary Hospital Brynkinalt, Denbighshire
- Brynnog in Trefilan Trefilan, Cardiganshire
- Buckinghamshire Archaeological Society Buckinghamshire;Buckinghamshire
- Builth and Penkelly hundreds land tax Builth, Brecknockshire
- Builth Wells Pageant Builth Wells, Radnorshire
- Burton upon Trent Abbey Burton-upon-Trent, Staffordshire
- Bury Welsh Calvinistic Methodists Bury, Lancashire
- Bwlch-y-corn Congregational Chapel, Llanllawddog Llanllawddog, Carmarthenshire
- Bwlch-y-rhiw Welsh Baptist Church, Cil-y-cwm Cil-y-cwm, Carmarthenshire
- Byrom Street Baptist Church, Liverpool Liverpool, Lancashire
- Caenest Caenest, Merionethshire
- Caernarfon Borough Caernarfon, Caernarfonshire
- Club Herber, Caernarfon and district Ministers Fraternal Caernarfon, Caernarfonshire
- Caernarfonshire Baptist Association Caernarfonshire;Gwynedd
- Caernarfonshire Constituency Labour Party Caernarfonshire;Gwynedd
- 1st Caernarvon Company of Artillery Volunteers Caernarfon, Caernarfonshire
- 2nd Caernarvon Artillery Volunteers Caernarfon, Caernarfonshire
- Caernarvon Conservative Association Caernarfon, Caernarfonshire
- Caernarvon Liberal Association Caernarfon, Caernarfonshire
- Caernarvon Social Service Canteen Caernarfon, Caernarfonshire
- Caernarvonshire Court of Great Sessions Caernarfonshire;Gwynedd
- Caernarvonshire elections Caernarfonshire;Gwynedd
- Caernarvonshire lieutenancy Caernarfonshire;Gwynedd
- Caernarvonshire militia Caernarfonshire;Gwynedd
- Caernarvonshire Quarter Sessions and County Court Caernarfonshire;Gwynedd
- Caernarvonshire Rifle Volunteers Caernarfonshire;Gwynedd
- Caernarvonshire volunteers Caernarfonshire;Gwynedd
- Caernarvonshire: sheriff Caernarfonshire;Gwynedd
- Caeronnen Unitarian Chapel Caeronnen, Cardiganshire
- Caerphilly Constituency Labour Party Caerphilly, Glamorgan
- Caersalem Baptist Chapel, Parc-y-rhos (Pencarreg) Pencarreg, Carmarthenshire
- Caersalem Baptist Church, Dowlais Dowlais, Glamorgan
- Caersalem Congregational Chapel, Pontyberem (Llangynderyn/Llangendeirn) Llangynderyn, Carmarthenshire;Llangendeirn, Carmarthenshire
- Caersalem Newydd Welsh Baptist Church, Treboeth Tre-boeth, Glamorgan
- Caersalem Welsh Baptist Church, Llanelli Llanelli, Carmarthenshire
- Caersalem/Capel Mawr Calvinistic Methodist Chapel, Barmouth Barmouth, Merionethshire
- Caerwys enclosure Caerwys, Flintshire
- Caerwys parish Caerwys, Flintshire
- Caio and Llanycrwys Ploughing and Hedging Match and Horse Show Caio, Carmarthenshire
- Caldicot and Wentloog levels Commissioners of Sewers Caldicot, Monmouthshire
- Calfaria Baptist Church, Llanelli Llanelli, Carmarthenshire
- Calfaria Welsh Baptist Chapel, Abercynon Abercynon, Glamorgan
- Calvinistic Methodist Church Loan Fund
- Calvinistic Methodist Church Loan Fund: North Wales association
- Calvinistic Methodist Church Ministers Fund: North Wales association, Montgomeryshire presbytery Montgomeryshire;Powys
- Calvinistic Methodists' Sunday School Union, Wales
- Cambrian Society in Gwent Brecknockshire;Powys
- Cambridge University Liberal Club Cambridge, Cambridgeshire
- Cambridge Welsh Society Cambridge, Cambridgeshire
- Cambro-Briton Society, London London
- CND (Campaign for Nuclear Disarmament): Cymru Wales
- Campaign for Nuclear Disarmament: Aberystwyth branch Aberystwyth, Cardiganshire
- Canolfan Llenyddiaeth Plant Cymru Aberystwyth, Cardiganshire
- Capel Als, Llanelli Llanelli, Carmarthenshire
- Celyn Capel, Capel Celyn, Llanycil Capel Celyn, Merionshire
- Capel Dewi, Faenor Uchaf (Upper Vaenor) Faenor Uchaf, Cardiganshire;Upper Vaenor, Cardiganshire
- Capel Ficer, Llannarth Llannarth, Cardiganshire
- Capel Gwyn Baptisit Chapel, Llechylched Llechylched, Anglesey
- Capel Isaac Independent Church, Llandeilo Fawr Llandeilo Fawr, Carmarthenshire
- Capel Madog, Parsel Canol Parsel Canol, Cardiganshire
- Capel Newydd Independent Church, Abergorlech Abergorlech, Carmarthenshire
- Capel Newydd, Pontrobert (Llangynyw) Llangynyw, Montgomeryshire
- Capel Seion, Bryneglwys Bryneglwys, Denbighshire
- Capel Seion, Carrog Llansanffraid Glan Conwy, Denbighshire
- Capel Tegid Young Peoples Religious Society
- Capel Uchaf, Llangurig Llangurig, Montgomeryshire
- Capel y Doc (Docks Chapel), Llanelli Llanelli, Carmarthenshire
- Capel y Dolau, Llanarthne Llanarthne, Carmarthenshire
- Capel y Glyn Calvinistic Methodist Church, Llangywer Llangywer, Merionethshire
- Capel-y-ffin Baptist Church Capel-y-ffin, Brecknockshire
- Capel-y-ffin/Olchon Baptist Chapel, Llanigon Llanigon, Brecknockshire
- Cardiff and District Evangelical Free Church Council Cardiff, Glamorgan
- Cardiff Central Conservative Association Cardiff, Glamorgan
- Cardiff East Conservative Association Cardiff, Glamorgan
- Cardiff Guild of Cordwainers and Glovers Cardiff, Glamorgan
- Cardiff Labour Party Cardiff, Glamorgan
- Cardiff Nonconformist Ministerial Union Cardiff, Glamorgan
- Cardiff North Conservative Association Cardiff, Glamorgan
- Cardiff North West Conservative Association Cardiff, Glamorgan
- Cardiff Roman Catholic Archdiocese Cardiff, Glamorgan
- Cardiff South Conservative Association Cardiff, Glamorgan
- Cardiff South East Conservative Association Cardiff, Glamorgan
- Cardiff South East Labour Party Cardiff, Glamorgan
- Cardiff West Conservative Association Cardiff, Glamorgan
- Cardigan Borough Cardigan, Cardiganshire
- Cardigan Poor Law Union Cardigan, Cardiganshire
- Cardigan Town Labour Party Cardigan, Cardiganshire
- Cardiganshire Agricultural Executive Committee Cardiganshire;Dyfed
- Cardiganshire Association for the Blind Cardiganshire;Dyfed
- Cardiganshire Baptist Quarterly Meeting Aberystwyth, Cardiganshire
- Cardiganshire Congregationalists Quarterly meeting Cardiganshire;Dyfed
- Cardiganshire Conservative Association Cardiganshire;Dyfed
- Cardiganshire Constabulary Cardiganshire;Dyfed
- Cardiganshire County Bowling Association Cardiganshire;Dyfed
- Cardiganshire County Council Cardiganshire;Dyfed
- Cardiganshire County Gardens Produce Committee Cardiganshire;Dyfed
- Cardiganshire County Music Festival Cardiganshire;Dyfed
- Cardiganshire County Roads Board Cardiganshire;Dyfed
- Cardiganshire Court of Great Sessions Cardiganshire;Dyfed
- Cardiganshire elections Cardiganshire;Dyfed
- Cardiganshire Horticultural Society Cardiganshire;Dyfed
- Cardiganshire Labour Party Cardiganshire;Dyfed
- Cardiganshire Liberal Association Cardiganshire;Dyfed
- Cardiganshire Military Service Appeal Tribunal Cardiganshire;Dyfed
- Cardiganshire militia Cardiganshire;Dyfed
- Cardiganshire National Savings committees Cardiganshire;Dyfed
- Cardiganshire Nursing Association Cardiganshire;Dyfed
- Cardiganshire poor law unions Cardiganshire;Dyfed
- Cardiganshire Quarter Sessions Cardiganshire;Dyfed
- Cardiganshire Society for Handicapped Children Cardiganshire;Dyfed
- Cardiganshire Society in London London
- Cardiganshire Turnpike Roads Cardiganshire;Dyfed
- Cardiganshire: sheriff Cardiganshire;Dyfed
- Carmarthen Borough Carmarthen, Carmarthenshire
- Carmarthen Borough Court Carmarthen, Carmarthenshire
- Carmarthen borough elections Carmarthen, Carmarthenshire
- Carmarthen Borough Quarter Sessions Carmarthen, Carmarthenshire
- Carmarthen Labour Party Carmarthen, Carmarthenshire
- Carmarthen Town Volunteers Carmarthen, Carmarthenshire
- 3rd Carmarthenshire Volunteers Carmarthenshire;Dyfed
- Carmarthenshire Agricultural Society Carmarthenshire;Dyfed
- Carmarthenshire and Cardiganshire Baptist Association Carmarthenshire;Cardiganshire;Dyfed
- Carmarthenshire and Cardiganshire Home Mission Fund Carmarthenshire;Dyfed
- Carmarthenshire Conservative Association Carmarthenshire;Dyfed
- Carmarthenshire County Court Carmarthenshire;Dyfed
- Carmarthenshire Court of Great Sessions Carmarthenshire;Dyfed
- Carmarthenshire elections Carmarthenshire;Dyfed
- Carmarthenshire Home Guard Carmarthenshire;Dyfed
- Carmarthenshire militia Carmarthenshire;Dyfed
- Carmarthenshire Roads Board Carmarthenshire;Dyfed
- Carmarthenshire Turnpike Roads Boards Carmarthenshire;Dyfed
- Carmarthenshire: sheriff Carmarthenshire;Dyfed
- Carmel Baptist Church, Pontrhydfendigaid Pontrhydfendigaid, Cardiganshire
- Carmel Calvinistic Methodist Chapel, Llanllugan Llanllugan, Montgomeryshire
- Carmel Calvinistic Methodist Church, Llanilar Llanilar, Cardiganshire
- Carmel Welsh Baptist Chapel, Troedyrhiw Troedyrhiw, Glamorgan
- Carnarvonshire Turnpike Trust Caernarfonshire;Gwynedd
- Carnegie Endowment for International Peace
- Caroline Coventry
- Castell Garfod estate Castell Garfod, Cardiganshire
- Castle Street Baptist church, Caerleon Caerleon, Monmouthshire
- Castle Street Congregational Chapel, Abergavenny (Y Fenni) Abergavenny, Monmouthshire
- Castle Street Welsh Baptist Chapel, Westminster Westminster, Middlesex
- Castleton Social and Literary Club Castleton, Monmouthshire
- Catharine Hodges, of Aberdovey
- Catherine, schooner, of New Quay
- Caurse and Pool Upper Petty Sessions Welshpool, Montgomeryshire
- Cefn Mawr and Ruabon joint diaconate Congregational churches Cefn Mawr, Denbighshire
- Cefn Nannau Calvinistic Methodist Chapel, Llangwm Llangwm, Denbighshire
- Cefnarthen Congregational Chapel, Llanfair-ar-y-bryn Llanfairarybryn, Carmarthenshire
- Cefnbryntalch estate Cefnbryntalch, Montgomeryshire
- Cefnbychan Baptist Church Cefnbychan, Denbighshire
- Cefn-Coed-y-Cymmer police constable Cefn-Coed-y-Cymmer, Brecknockshire
- Cefn-iwrch Calvinistic Methodist Chapel, Llanfair Mathafarn Eithaf Llanfair Mathafarn Eithaf, Anglesey
- Cefn-y-faenor/Ebenezer Congregational Church, Berriew Berriew, Montgomeryshire
- Cellan parish Cellan, Cardiganshire
- Celtic League
- Celyrim District Nursing Association, ? Mon Celyrim, Monmouthshire
- Cemais/Cemmaes Calvinistic Methodist Church Cemais, Montgomeryshire;Cemmaes, Montgomeryshire
- Central Campaign Committee for the Disestablishment of the Church of England in Wales London
- Central Church Committee, Bangor diocesan branch Bangor, Caernarfonshire
- Central Council of Churches and Students at Bangor Bangor, Caernarfonshire
- Central Welsh Board, Welsh Joint Education Committee
- Centre for Alternative Technology, eco-centre, Machynlleth Machynlleth, Montgomeryshire
- Cerdd Dant (Instrumental Music) Festival: Aberystwyth Aberystwyth, Cardiganshire
- Cerdd Dant (Instrumental Music) Festival: Tregaron Tregaron, Cardiganshire
- Ceredigion and Pembroke North Social Democratic Party Pembrokeshire;Dyfed
- Ceredigion Antiquarian Society Cardiganshire;Dyfed
- Ceredigion Labour Party Cardiganshire
- Ceres, brig, of Milford
- Cerrigydruidion, Llanfihangel and Llangwm Calvinistic Methodists Cerrigydruidion, Denbighshire
- Chamberlain of North Wales
- Charitable Trust of Illtid Nicholl, Llandaff Llandaff, Glamorgan
- Charles T Jones, steam ship
- HMS Chatham (1716)
- 1st Cheshire and Carnarvon Volunteer Corps Bangor, Caernarfonshire
- 1st Chester and Carnarvon Artillery Volunteer Corps Chester, Cheshire;Caernarfon, Caernarfonshire
- Chester Street Baptist Church, Wrexham Wrexham, Denbighshire
- Chester Welsh Society Chester, Cheshire
- China Street/Heol China Calvinistic Methodist Chapel, Llanidloes Llanidloes, Montgomeryshire
- Chirk parish Chirk, Denbighshire
- Cholton Road Congregational Church Band of Hope Union, Manchester Manchester, Lancashire
- Chorlton Road Congregational Church, Manchester Manchester, Lancashire
- Christ Church College, Brecon Brecon, Brecknockshire
- Church Defence Institution: St David's diocese, Ultra Aeron ruridecanal committee St David's, Pembrokeshire
- Church in Wales
- Church Rate Abolition Society
- Churchstoke tithes Churchstoke, Montgomeryshire
- Chwarel Goch Congregational Church, Llandygai Llandygai, Caernarfonshire
- Cilau-Wen estate Cilau-wen, Pembrokeshire
- Cilfowyr Baptist church, Maenordeifi Maenordeifi, Pembrokeshire
- Cilgwyn Wesleyan Methodist Chapel, Llangybi Llangybi, Cardiganshire
- Cippyn tithes Cippyn, Pembrokeshire
- City of Bangor Lending Library Bangor, Caernarfonshire
- City of Cardiff Conservative Association Cardiff, Glamorgan
- Clarach parish Clarach, Cardiganshire
- Clarach Valley Seed Growers Association Clarach, Cardiganshire
- Clawddnewydd Calvinistic Methodist Chapel, Derwen Derwen, Denbighshire
- Clifton Road Welsh Congregational Church, Birkenhead Birkenhead, Cheshire
- Club Arian y Post Office, Rhostryfan (Rhostryfan Post Office Savings Club) Rhostryfan, Caernarfonshire
- Clwb Llyfran Cymraeg
- Clynnog district sunday schools Clynnog, Caernarfonshire
- Clyro enclosure Clyro, Radnorshire
- Cofeb R Williams Parry Caernarfonshire;Gwynedd
- Cofeb y Dewrion, Brynsiencyn Brynsiencyn, Anglesey
- Cofiwn
- Coldstream Guards
- Coleg Harlech Harlech, Merionethshire
- Y Coleg Cymraeg Cenedlaethol, Welsh language development body for higher education Wales
- Colyton Unitarian meeting house (George's Meeting) Colyton, Devon
- Commissioners for Church Temporalities in Wales
- Committee for the Care of Welsh Soldiers in London Hospitals London
- Committee of Welsh District Councils
- Committee on Public Libraries in England and Wales (Roberts Committee)
- Committee on the Future of Broadcasting (Annan Committee)
- Committee to Clarify the Legal Status of the Welsh Language
- Committee to Oppose Union of the Sees of Bangor and St Asaph
- 1st Company of Penrhyn Volunteers Penrhyn, Caernarfonshire
- Condover Hundred Condover, Shropshire
- Congregational Federation in Wales
- Congregational Union: North Cardiganshire and Dovey Valley Womens Federation Cardiganshire;Dyfed
- Conservative Party (Wales)
- Conway Ministers Fraternal Conwy, Caernarfonshire
- Conway Road Calvinistic Methodist Chapel, Colwyn Bay Colwyn Bay, Denbighshire
- Conway Valley Welsh Methodist (Wesleyan) Circuit Conwy, Caernarfonshire
- Conwy Conservative Association Conwy, Caernarfonshire
- Cor Meibion Aberystwyth (Aberystwyth Male Voice Choir) Aberystwyth, Cardiganshire
- Corlan Housing Association Ltd Caernarfonshire;Gwynedd
- Corwen and District War Relief Committee Corwen, Merionethshire
- Corwen and Edeirnion Female Friendly Benefit Society Corwen, Merionethshire
- Corwen parish Corwen, Merionethshire
- Campaign for the Protection of Rural Wales
- Council for British Archaeology: Wales and Monmouth branch
- Council for Sunday Schools in Wales
- Council for the Principality of Wales
- Council for the Protection of Rural Wales: Caernarfonshire branch Caernarfonshire;Gwynedd
- Council for Wales and Monmouthshire
- Council in the Marches of Wales
- Council of Churches for Wales
- Council of Welsh Districts
- Court Henry estate Court Henry, Carmarthenshire
- Courtridhir estate Courtridhir, Glamorgan
- Cowethas Flamank (Cornish current affairs and research group) Cornwall;Cornwall
- Crafnant and Gerddi Bluog estates Crafnant, Merionethshire
- Craft Potters Association
- Craig Bargoed Congregational Church, Gelligaer Gelligaer, Glamorgan
- John Crane, surveyor-general of navy victualling
- Crewe and District Welsh Society Crewe, Cheshire
- Cribyn Day School, Llanfihangel Ystrad Llanfihangel Ystrad, Cardiganshire
- Cribyn Unitarian Chapel, Llanfihangel Ystrad Llanfihangel Ystrad, Cardiganshire
- Cricieth Charity School Cricieth, Caernarfonshire
- Crickheath forest Crickheath, Shropshire
- Crickhowell Methodist Chapel Crickhowell, Brecknockshire
- Crickhowell Petty Sessions Crickhowell, Brecknockshire
- Croesyparc Baptist Chapel Croes-y-parc, Glamorgan
- Croes-y-parc Baptist church Croes-y-parc, Glamorgan
- Cross Hands Inn Benefit Club Society, Llanybydder Llanybydder, Carmarthenshire
- Crown lands in Caernarvonshire and Anglesey Anglesey;Caernarfonshire;Gwynedd
- Cwm Tirymynach Calvinistic Methodist Chapel, Llanfor Llanfor, Merionethshire
- Cwmbrwyno Horeb Wesleyan Methodist Chapel, Melindwr Melindwr, Cardiganshire
- Cwmgloyne estate Cwmgloyne, Pembrokeshire
- Cwmrheidol School Board Cwmrheidol, Cardiganshire
- Cwmsymlog Baptist Chapel Cwmsymlog, Cardiganshire
- Cwmystwyth Friendly Society Cwmystwyth, Cardiganshire
- Cwmystwyth Welsh Calvinistic Methodist Chapel Cwmystwyth, Cardiganshire
- Cydplwyf and Llanina parish Cydplwyf And Llanina, Cardiganshire
- Cyfoeth y Brenin Parish Council Cyfoeth Y Brenin, Cardiganshire
- Cyfronnydd Cyfronnydd, Montgomeryshire
- Cyfundeb Dyngarol Lodge 1841 (philanthropic society), Monmouthshire Monmouthshire;Gwent
- Cylch y Pump ar Hugain: Lerpwl (literary society) Liverpool, Lancashire
- Cymanfa a Chyfarfod Chwarter Bedyddwyr Morgannwg (Glamorgan Baptist Association and Quarterly Meeting) Glamorgan
- Cymanfa Annibynwyr Sir Caerfyrddin Carmarthenshire;Dyfed
- Cymanfa Ganu Annibynwyr Dyffryn Afan
- Cymanfa Ganu Dosbarth y Garn (Garn District Calvinistic Methodist Singing Festival) Garn, Cardiganshire
- Cymanfa Ysgolion committee, Liverpool Liverpool, Lancashire
- Cymdeithas Bechgyn y Bala Bala, Merionethshire
- Cymdeithas Bob Owen
- Cymdeithas Cerdd Dafod, literary society
- Cymdeithas Cerdd Dant Cymru
- Cymdeithas Cofeb Beca, Efailwen Efailwen, Pembrokeshire
- Cymdeithas Cyfeillion Ysgol Gyfun Penweddig Aberystwyth, Cardiganshire
- Cymdeithas Cymreigyddion, Cyfeiliog Cyfeiliog, Montgomeryshire
- Cymdeithas Cymreigyddion, Dolgellau Dolgellau, Merionethshire
- Cymdeithas Cymry Ariannin ym Mhrydain
- Cymdeithas Cymry Wallasey Wallasey, Cheshire
- Cymdeithas Ddiwygiadol a Dirwestol Trawsfynydd Trawsfynydd, Merionethshire
- Cymdeithas Enweiriawl Gymraeg, Tan-y-Grisiau branch Tan-y-grisiau, Merionethshire
- Cymdeithas Gelfyddyd Llyfrgell Genedaethol Cymru Aberystwyth, Cardiganshire
- Cymdeithas Genhadol y Bedyddwyr ar gyfer y boblogaeth wasgaredig Gymraeg yn Llundain (The Baptist Missionary Society for the scattered Welsh Population of London) London
- Cymdeithas Gorsedd Beirdd Mon (Anglesey Bardic Gorsedd Society) Anglesey;Gwynedd
- Cymdeithas Gwasanaeth Cymdeithasol Bedyddwyr Cymru
- Cymdeithas Gyfeillgar Edeyrn (Edeyrn Friendly Society) Edeyrn, Caernarfonshire
- Cymdeithas Gyfeillgar Glannau Rhyddalt (Glannau Rhyddalt Friendly Society), Llanrug Llanrug, Caernarfonshire
- Cymdeithas Gyfeillgar Gwragedd Llandderfel a Llandrillo (Llandderfel and Llandrillo Friendly Society) Llandderfel, Merionethshire
- Cymdeithas Gyfeillgar Llanfor (Llanfor Friendly Society) Llanfor, Merionethshire
- Cymdeithas Gymroaidd y Bala
- Cymdeithas Gynorthwyol Glannau Ifor (Glannau Ifor Benefit Society), Llanrug Llanrug, Caernarfonshire
- Cymdeithas Hanes Annibynwyr Cymru
- Cymdeithas Hynafiaethau Cymru (Cambrian Archaeological Association)
- Cymdeithas Lenyddawl Gymreig (literary debating)
- Cymdeithas Llenyddawl Meirion (literary debating) Merionethshire;Gwynedd
- Cymdeithas Lyfrau Ceredigion (Ceredigion Book Society) Cardiganshire;Dyfed
- Cymdeithas Mabinogion
- Cymdeithas Plant Derfel, Llandderfel Llandderfel, Merionethshire
- Cymdeithas Y Bedol, Aberystwyth Aberystwyth, Cardiganshire
- Cymdeithas y Chwiorydd (Womens Guild), Llandeilo, Salem Presbyterian Church Llandeilo, Carmarthenshire
- Cymdeithas y Ford Gron (Round Table), Manchester Manchester, Lancashire
- Cymdeithas y Gwyneddigion
- Cymdeithas y Marsiandwyr Perlau (literary and art society) Wrexham, Denbighshire
- Cymdeithas yr Iaith Gymraeg (Welsh Language Society)
- Cymdeithas yr Iaith Gymraeg (Welsh Language Society): Ammanford cell Ammanford, Carmarthenshire
- Cymdeithas yr Iaith Gymraeg (Welsh Language Society): Cangen Ceredigion Cardiganshire;Dyfed
- Cymdeithas yr Iaith Gymraeg (Welsh Language Society): Cardiff cell Cardiff, Glamorgan
- Cymdeithas yr Iaith Gymraeg (Welsh Language Society): Carmarthen cell Carmarthen, Carmarthenshire
- Cymdeithas yr Iaith Gymraeg (Welsh Language Society): Ceredigion North cell Cardiganshire;Dyfed
- Cymdeithas yr Iaith Gymraeg (Welsh Language Society): Cynon Valley cell Cynon Valley, Glamorgan
- Cymdeithas yr Iaith Gymraeg (Welsh Language Society): Dyfed area Dyfed
- Cymdeithas yr Iaith Gymraeg (Welsh Language Society): Glamorgan-Gwent area Monmouthshire;Glamorgan;Gwent
- Cymdeithas yr Iaith Gymraeg (Welsh Language Society): Gwent cell Monmouthshire;Gwent
- Cymdeithas yr Iaith Gymraeg (Welsh Language Society): Llanelli cell Llanelli, Carmarthenshire
- Cymdeithas yr Iaith Gymraeg (Welsh Language Society): Merthyr Tydfil cell Merthyr Tydfil, Glamorgan
- Cymdeithas yr Iaith Gymraeg (Welsh Language Society): Newport cell Newport, Monmouthshire
- Cymdeithas yr Iaith Gymraeg (Welsh Language Society): Powys area Powys
- Cymdeithas yr Iaith Gymraeg (Welsh Language Society): Swansea cell Swansea, Glamorgan
- Cymdeithas yr Iaith Gymraeg (Welsh Language Society): Swansea Valley cell Swansea, Glamorgan
- Cymdeithas yr Iaith Gymraeg (Welsh Language Society): Taf Elai cell Glamorgan
- Cymdeithas yr Iaith Gymraeg (Welsh Language Society): Trecelyn cell Monmouthshire;Gwent
- Cymdeithas yr Iaith Gymraeg (Welsh Language Society): Trefethin cell Monmouthshire;Gwent
- Cymdeithas yr Iaith Gymraeg (Welsh Language Society): West Glamorgan cell Glamorgan;West Glamorgan
- Cymdeithas yr Orsedd (Gorsedd Society)
- Cymreigyddion y Fenni (Abergavenny Welsh Literary and Music Festivals) Abergavenny, Monmouthshire
- Cysegr Congregational Chapel, Rhewl Rhewl, Flintshire
- Dafydd ap Gwilym Society, Oxford Oxford, Oxfordshire
- Darowen tithes Darowen, Montgomeryshire
- David Davies Memorial Montgomeryshire;Powys
- Morris Davies, Rhydgalid
- William Day, Assistant Poor Law Commissioner
- Dderw estate Dderw, Radnorshire
- Denbigh boroughs elections Denbigh, Denbighshire
- Denbigh Division Conservative Association, Ruthin branch Ruthin, Denbighshire
- Denbigh School Denbigh, Denbighshire
- Denbighshire and Flintshire Union of Welsh Independents Flintshire;Denbighshire;Clwyd
- Denbighshire Court of Great Sessions Denbighshire;Clwyd
- Denbighshire elections Denbighshire;Clwyd
- Denbighshire Flintshire and Montgomeryshire Sheriffs Association Denbighshire;Clwyd
- Denbighshire Home Guard Denbighshire;Clwyd
- Denbighshire land tax Denbighshire;Clwyd
- Denbighshire militia Denbighshire;Clwyd
- Denbighshire Quarter Sessions Denbighshire;Clwyd
- Denbighshire tithes Denbighshire;Clwyd
- Denbighshire: sheriff Denbighshire;Clwyd
- Deneio parish Deneio, Caernarfonshire
- Departmental Committee on Rural Education in Wales
- Derigaron Calvinistic Methodist sunday School (Bwlch-Gwynt Church), Tregaron Tregaron, Cardiganshire
- Derwen Calvinistic Methodist Chapel Derwen, Denbighshire
- Derwen-las Wesleyan Methodist Chapel, Isygarreg Isygarreg, Montgomeryshire
- Deuddwr Petty Sessions Deuddwr, Montgomeryshire
- Devynnock tithes Devynnock, Brecknockshire
- Dinmael Calvinistic Methodist Chapel, Llangwm Llangwm, Denbighshire
- Dinorwic Calvinistic Methodist District meeting Dinorwic, Caernarfonshire
- Disserth parish Disserth, Radnorshire
- Doithie Camddwr parish Doithie Camddwr, Cardiganshire
- Doldowlod estate Doldowlod, Brecknockshire
- Dolgellau Aiding Society Dolgellau, Merionethshire
- Dolgellau Bible Association Dolgellau, Merionethshire
- Dolgellau District Calvinistic Methodist Sunday School Dolgellau, Merionethshire
- Dolgellau Friendly Society Dolgellau, Merionethshire
- Dolgellau Rowing Club Dolgellau, Merionethshire
- Dolgellau United Temperance Choir Dolgellau, Merionethshire
- Dolgelly and Mowddwy Districts Turnpike Roads Dolgelly, Merionethshire;Mowddwy, Merionethshire
- Dolgelly Poor Law Union Dolgelly, Merionethshire
- Don Arturo, steam ship
- Dongray Dongray, Flintshire
- HMS Doris (1808)
- Dovey Embankment and land drainage Cardiganshire;Dyfed
- Dovey, Mawddach and Glaslyn Fishery District Board of Conservators Merionethshire;Gwynedd
- Dowlais and Penydarren Nursing Association Dowlais, Glamorgan
- Dowlais money club Dowlais, Glamorgan
- Dr Daniel Williams Educational Trust
- Dreadnought, brigantine
- Duchy of Cornwall
- Dyfed Area Social Democratic Party Dyfed
- Dyfed Congregational Churches annual assembly (Cymanfa Annibynwyr Dyfed, Cymafair Tair Sir) Dyfed
- Dyffryn Calvinistic Methodist Chapel, Llandyrnog Llandyrnog, Denbighshire
- Dysynny Valley Drainage Board Dysynni, Merionethshire
- Eagle
- Eagle Eyed, schooner, of Aberystwyth
- Earlsfield Road Baptist Church, Liverpool Liverpool, Lancashire
- East Glamorgan Baptist Association: Undeb Adran y Rhondda Rhondda, Glamorgan
- East Glamorgan Labour Womens Advisory Council Glamorgan;South Glamorgan
- Ebbw Vale Iron and Steel Trades and Labour Council Ebbw Vale, Monmouthshire
- Ebenezer Baptist Church, Eglwyswrw Eglwyswrw, Pembrokeshire
- Ebenezer Baptist Church, Llandyssul Llandyssul, Cardiganshire
- Ebenezer Calvinistic Methodist Chapel, Llanymynech (Carreghofa) Llanymynech, Montgomeryshire;Carreghofa, Montgomeryshire
- Ebenezer Calvinistic Methodist Chapel, Twyncarno Twyncarno, Monmouthshire
- Ebenezer Calvinistic Methodist Chapel, Welshpool Welshpool, Montgomeryshire
- Ebenezer Congregational Church and Sunday School, Newport Newport, Pembrokeshire
- Ebenezer Congregational Church, Prescot Prescot, Lancashire
- Ebenezer Congregational Church, Swansea Swansea, Glamorgan
- Ebenezer Presbyterian Church, Cwmrhydyceirw, Morriston Morriston, Glamorgan
- Ebenezer Welsh Congregational Church, Llanfair Caereinion Llanfair Caereinion, Montgomeryshire
- Ebenezer Wesleyan Methodist Chapel, Cardigan (Aberteifi) Cardigan, Cardiganshire;Aberteifi, Cardiganshire
- Ebenezer Wesleyan Methodist Chapel, Carmarthen Carmarthen, Carmarthenshire
- Ebenezer Wesleyan Methodist Chapel, Cilcennin Cilcennin, Cardiganshire
- Ebenezer Wesleyan Methodist Chapel, Llangadog Llangodog, Carmarthenshire
- Economy, schooner
- Edern Calvinistic Methodist Chapel Edern, Caernarfonshire
- Edern Parish Council Edern, Caernarfonshire
- Edge Lane Welsh Baptist Church, Liverpool Liverpool, Lancashire
- Eglwysilan parish Eglwysilan, Glamorgan
- Eifionydd Farmers Association Caernarfonshire;Gwynedd
- Eifionydd Society for the Prosecution of Felons Eifionydd, Caernarfonshire
- Eisteddfod Gadeiriol Maldwyn Montgomeryshire;Powys
- Eisteddfod Genedlaethol Cymru (National Eisteddfod of Wales)
- Eldon Street Welsh Baptist Chapel, Moorfields Shoreditch, Middlesex
- Eleanor and Jane
- Elim Calvinistic Methodist Chapel, Llanddeinol Llanddeinol, Cardiganshire
- Elizabeth, of Llanelli Llanelli, Carmarthenshire
- Ellen Glynne's Charity, Llandwrog Llandwrog, Caernarfonshire
- Ellen, of New Quay
- Emmanuel College Debating Society, Cambridge Cambridge, Cambridgeshire
- Endymion
- Engedi Calvinistic Methodist Chapel Colwyn Bay, Denbighshire
- Engedi Calvinistic Methodist Chapel, Colwyn Bay Colwyn Bay, Denbighshire
- English Baptist Chapel, Caersws (Llannwnog) Caersws, Montgomeryshire;Llannwnog, Montgomeryshire
- English Congregational Union of Wales
- English Presbyterian Chapel, Llanelli Llanelli, Carmarthenshire
- English Presbyterian Church, Colwinston Colwinston, Glamorgan
- The English Chapel (Calvinistic Methodist), Dolgellau Dolgellau, Merionethshire
- Enid Property Club, Trealaw Trealaw, Glamorgan
- Erlas parish Erlas, Denbighshire
- Esgairdawe Congregational Chapel, Pencarreg Pencarreg, Carmarthenshire
- Esgeirnant Calvinistic Methodist Chapel, Talley Talley, Carmarthenshire
- Estimaner Petty Sessions Estimaner, Merionethshire
- European Bureau for Lesser Used Languages
- Everton Village Baptist Church, Liverpool Liverpool, Lancashire
- Everton Village Welsh Baptist Church Everton, Lancashire
- Excise, ? Newport, Monmouthshire Newport, Monmouthshire
- SS Express
- Fellowship of Reconciliation in Wales
- Ferndale parish Ferndale, Glamorgan
- Ffaldybrenin Congregational Chapel, Llan-crwys (Llan-y-crwys) Llan-crwys, Carmarthenshire;Llan-y-crwys, Carmarthenshire
- Ffestiniog friendly societies Ffestiniog, Merionethshire
- Ffestiniog parish Ffestiniog, Merionethshire
- Ffestiniog Poor Law Union Ffestiniog, Merionethshire
- Ffosrhydgaled estate Ffosrhydgaled, Cardiganshire
- Ffrwdrech estate, Sr David Ffrwdgrech, Brecknockshire
- Ffynnonhenri Baptist Chapel, Cynwyl Elfed Cynwyl Elfed, Carmarthenshire
- First Regiment of West Riding Yeomanry Cavalry Yorkshire, West Riding
- Fishguard Turnpike Trust Fishguard, Pembrokeshire
- Fitzclarence Street Calvinistic Methodist Welsh Church, Liverpool Liverpool, Lancashire
- 1st Flint and Carnarvon Rifle Volunteers Corps Flint, Flintshire;Caernarfon, Caernarfonshire
- Flint boroughs elections Flint, Flintshire
- Flintshire and Denbighshire Labour Womens Advisory Council Flintshire;Denbighshire;Clwyd
- Flintshire Court of Great Sessions Flintshire;Clwyd
- Flintshire District English Congregational Union Flintshire;Clwyd
- Flintshire elections Flintshire;Clwyd
- Flintshire militia Flintshire;Clwyd
- Flintshire tithes Flintshire;Clwyd
- Flintshire United Temperance Association Flintshire;Clwyd
- Flintshire: sheriff Flintshire;Clwyd
- The Fly, smack
- Football Association of Wales
- Forden Poor Law Union Forden, Montgomeryshire
- Forden Rural District Council Forden, Montgomeryshire
- Forest of Dean Forest of Dean, Gloucestershire
- Fortune
- Forward Movement Church, St Thomas, Swansea Swansea, Glamorgan
- Frances
- SS Frederick Knight
- French and Dutch prisoners of war, Newtown Newtown, Montgomeryshire
- Freystrop School Freystrop, Pembrokeshire
- Gades Calvinistic Methodist Chapel, Clocaenog Clocaenog, Denbighshire
- Galltyllan Galltyllan, Montgomeryshire
- Garn Presbyterian Church, Pen-y-garn Pen-y-garn, Cardiganshire
- Garreg-fawr Baptist Chapel, Llanfechell Llanfechell, Anglesey
- Garton Foundation
- Gartside Street Congregational Church, Manchester Manchester, Lancashire
- Garw Valley Sunday School Union Glamorgan
- Garw Valley Union of Welsh Baptist Churches Singing Festival Glamorgan
- Gelli-deg Congregational Church, Merthyr Tydfil Merthyr Tydfil, Glamorgan
- Gellifer Calvinistic Methodist Church Gellifer, Denbighshire
- Gellifor Calvinistic Methodist Chapel, Llangynhafal Llangynhafal, Denbighshire
- Gelligaer parish Gelligaer, Glamorgan
- Gelynos Congregational Chapel, Llanwrtyd Llanwrtyd, Brecknockshire
- General Committee on Mutual Understanding and Co-operation (Christian Communions in Wales)
- General Post Office files on Welshpool - Llangadfan Mail Cart Service Welshpool, Montgomeryshire;Llangadfan, Montgomeryshire
- Gerard Street Baptist Church, Liverpool Liverpool, Lancashire
- Gerlan Calvinistic Methodist Church Gerlan, Caernarfonshire
- Gesailgyfarch estate Gesailgyfarch, Caernarfonshire
- Geuffordd Calvinisic Methodist Chapel, Guilsfield Guilsfield, Montgomeryshire
- Gilgal Congregational Church, Maentwrog Maentwrog, Merionethshire
- Glamorgan elections Glamorgan
- Glamorgan land tax Glamorgan
- Glamorgan militia Glamorgan
- Glamorgan Quarter Sessions Glamorgan
- Glamorgan Society for the Encouragement of Agriculture Glamorgan
- Glamorgan Street Congregational Chapel, Brecon Brecon, Brecknockshire
- Glandwr Congregational Church, Llanfyrnach Glandwr, Pembrokeshire;Llanfyrnach, Pembrokeshire
- Glandwr Independent Church, Llanfyrnach Llanfyrnach, Pembrokeshire
- Glannau Teifi Baptist Singing Festival Glannau Teifi, Cardiganshire;Teifiside, Cardiganshire
- Glan'rafon Presbyterian Church, Llawr-y-Betws Llawr-y-betws, Merionethshire
- Glan-y-nant Calvinistic Methodist Chapel, Llanidloes Llanidloes, Montgomeryshire
- Glasaber and Llanarmon Dyffryn Ceiriog Calvinistic Methodist Churches Llanarmon Dyffryn Ceiriog, Denbighshire
- Mostyn, Glasbury etc Glasbury, Radnorshire
- Gleiniant Calvinistic Methodist Chapel, Trefeglwys Trefeglwys, Montgomeryshire
- Glenara
- HMS Gloucester (1737)
- Gloucestershire elections Gloucestershire;Gloucestershire
- Glyn Calvinistic Methodist Chapel, Denbigh Denbigh, Denbighshire
- Glyn Calvinistic Methodist Chapel, Llanidloes Llanidloes, Montgomeryshire
- Glynarthen Congregational Chapel, Penbryn Penbryn, Cardiganshire
- Glyncorrwg parish Glyncorrwg, Glamorgan
- Glyndyfrdwy Baptist Chapel, Corwen Glyndyfrdwy, Merionethshire;Corwen, Merionethshire
- Glynsanan Benefit Society, Llanfynydd Llanfynydd, Carmarthenshire
- Goginan Football Club Goginan, Cardiganshire
- Golden Goat Friendly Society, Dolgellau Dolgellau, Merionethshire
- Gorsedd y Beird (The Gorsedd of Bards)
- Gorwydd Parish Council Gorwydd, Cardiganshire
- Gosen Calvinistic Methodist Chapel, Llandybie Llandybie, Carmarthenshire
- Graig Baptist Church, Newcastle Emlyn Newcastle Emlyn, Carmarthenshire
- Grand United Order of Oddfellows: Pen-y-ffordd Pen-y-ffordd, Flintshire
- Grangetown Baptist Church, Cardiff Cardiff, Glamorgan
- Greenham Common Women's Peace Camp Greenham, Berkshire
- Gregynog Conferences on International Education
- John Griffith, Receiver-General of North Wales
- William Griffith/Madame de Solignac Monmouthshire;Gwent
- Gro Calvinistic Methodist Chapel, Betws Gwerful Goch Betws Gwerful Goch, Merionethshire
- Groes Congregational Church, Llangwm Llangwm, Denbighshire;Groes, Denbighshire
- Groes-lwyd Congregational Chapel, Guilsfield Guilsfield, Montgomeryshire
- Groydd estate, Cerrigydrudion Cerrigydrudion, Denbighshire
- Guild of Graduates of the University of Wales
- Guilsfield Combined Charities Guilsfield, Montgomeryshire
- Guilsfield parish Guilsfield, Montgomeryshire
- Gweled (Welsh Association of Visual Arts)
- Gwenddwr charity Gwenddwr, Brecknockshire
- Gwernoge Congregational Church Gwernoge, Carmarthenshire
- Gwernyfed estate, Brecknockshire Brecknockshire;Powys
- Gwyl Fawr Aberteifi (Cardigan Eisteddfod) Cardigan, Cardiganshire;Aberteifi, Cardiganshire
- Gwynfil Parish Council Gwynfil, Cardiganshire
- James Haffenden, Newland estate, Forest of Dean Newland, Gloucestershire
- Hafod Estate, Cwmystwyth Hafod, Cardiganshire
- Hafod-y-bwch colliery workers association Hafod-y-bwch, Denbighshire
- Sir William Hamilton Pembrokeshire;Dyfed
- Hanley Welsh Wesleyan Methodist Circuit Hanley, Staffordshire
- Hanmer parish Hanmer, Flintshire
- Harlech Calvinistic Methodist Chapel Harlech, Merionethshire
- Harlech Hospital League Harlech, Merionethshire
- Harlech Memorial Hall Harlech, Merionethshire
- Harmony Baptist Church, Pen-caer Pen-caer, Pembrokeshire
- Haverfordwest Baptist Academy Haverfordwest, Pembrokeshire
- Haverfordwest Baptist Burial Ground Haverfordwest, Pembrokeshire
- Haverfordwest Cartlett Chapel Haverfordwest, Pembrokeshire
- Haverfordwest charities Haverfordwest, Pembrokeshire
- Colby Scott Turnpike Gate, Haverfordwest Haverfordwest, Pembrokeshire
- Haverfordwest Coroner Haverfordwest, Pembrokeshire
- Haverfordwest Moravian Church Haverfordwest, Pembrokeshire
- Haverfordwest parish Haverfordwest, Pembrokeshire;Haroldston, Pembrokeshire;St Issells, Pembrokeshire
- Haverfordwest Society for the Dectection and Punishment of Felonies, Burglaries etc Haverfordwest, Pembrokeshire
- Haverfordwest to St Davids Turnpike Trust Haverfordwest, Pembrokeshire;St Davids, Pembrokeshire
- Haverfordwest: boarding school Haverfordwest, Pembrokeshire
- Hawarden and district land tax Hawarden, Flintshire
- Hawarden Choral Society Hawarden, Flintshire
- Hawarden peculiar Hawarden, Flintshire
- Hay and Talgarth Seed Growers Association Hay, Brecknockshire
- Hay Horse Show Society Hay, Brecknockshire
- Hay parish Hay, Brecknockshire
- Hay Poor Law Union Hay, Brecknockshire
- Hempstead tithes Hempstead, Essex
- Hen Gapel, Llanbryn-mair Llanbryn-mair, Montgomeryshire
- Hengoed Baptist Church Hengoed, Carmarthenshire
- Hengwrt Hengwrt, Merionethshire
- Henrietta, schooner
- Henry Richard Memorial Fund, Tregaron Tregaron, Cardiganshire
- Hensol estate deeds and papers Hensol, Glamorgan
- Heol Awst Welsh Congregational Chapel, Carmarthen Carmarthen, Carmarthenshire
- Heol-y-dwr Calvinistic Methodist Chapel, Carmarthen Carmarthen, Carmarthenshire
- Hephsibah Congregational Church, Clarach Clarach, Cardiganshire
- Hereford Archdeaconry Hereford, Herefordshire
- Hereford Borough Hereford, Herefordshire
- Hereford Diocese Hereford, Herefordshire
- 1st Herefordshire Rifle Volunteer Corps Herefordshire
- Hermon Baptist Church, Garnfach Garnfach, Monmouthshire
- Hermon Congregational Church, Dinas Mawddy, Mallwyd Dinas Mawddy, Merionethshire;Mallwyd, Merionethshire
- Hermon Congregational Church, Ystradfellte Ystradfellte, Brecknockshire
- Highgate Men's Club, Whitchurch Whitchurch, Shropshire
- Hill and Pembridge Castle estates Hill, Monmouthshire;Pembridge, Herefordshire
- Hind, of Newquay
- Historical Association
- Historical Society of West Wales
- HM Prison, Carmarthen Carmarthen, Carmarthenshire
- Holt Baptist Church Holt, Denbighshire
- Holt Borough Holt, Denbighshire
- Home for Friendless and Destitute Girls, Wrexham Wrexham, Denbighshire
- Honeyborough House estate Honeyborough, Pembrokeshire
- Honourable Society of Cymmrodorion
- Honourable Society of Cymmrodorion Welsh War Relief Committee
- Honourable Society of Cymmrodorion: Aberdare branch Aberdare, Glamorgan
- Honourable Society of Cymmrodorion: Aberystwyth branch Aberystwyth, Cardiganshire
- Honourable Society of Cymmrodorion: Cardiff branch Cardiff, Glamorgan
- Honourable Society of Cymmrodorion: Garw Valley branch Garw Valley, Glamorgan
- Honourable Society of Cymmrodorion: Mid-Rhondda branch Rhondda, Glamorgan
- Honourable Society of Cymmrodorion: Powys branch Powys
- Honourable Society of Cymmrodorion: Swansea branch Swansea, Glamorgan
- Honourable Society of Cymmrodorion: Treherbert branch Treherbert, Glamorgan
- Hope, smack
- Horeb Calvinistic Methodist Chapel, Mynydd-y-garreg (Kidwelly) Kidwelly, Carmarthenshire
- Horeb Calvinistic Methodist Chapel, Rhostryfan Rhostryfan, Caernarfonshire
- Horeb Congregational Chapel, Llandyssul Llandyssul, Cardiganshire
- Horeb Congregational Chapel, Llanglydwen Llanglydwen, Carmarthenshire
- Robert Howard of Conway Conwy, Caernarfonshire
- Richard Hughes of Castellior Castellior, Anglesey
- Husbandry Friendly Society, Rhydyfelin Rhydyfelin, Cardiganshire
- Ilma
- Independent Order of Oddfellows, Manchester Unity: Aberystwyth district committee Aberystwyth, Cardiganshire
- Independent Order of Oddfellows, Manchester Unity: Aberystwyth district, Earl of Lisburne Lodge Aberystwyth, Cardiganshire
- Independent Order of Oddfellows, Manchester Unity: Aberystwyth, Rheidol Lodge Aberystwyth, Cardiganshire
- Independent Order of Oddfellows, Manchester Unity: Aberystwyth, St Davids Lodge Aberystwyth, Cardiganshire
- Independent Order of Oddfellows, Manchester Unity: Bera Castle Lodge
- Independent Order of Oddfellows, Manchester Unity: Borth, Cambrian Lodge Borth, Cardiganshire
- Independent Order of Oddfellows, Manchester Unity: Dolgellau district committee Dolgellau, Cardiganshire
- Independent Order of Oddfellows, Manchester Unity: Dolgellau Loyal Idris Lodge 1263 Dolgellau, Merionethshire
- Independent Order of Oddfellows, Manchester Unity: Druid Lodge Cardiganshire;Dyfed
- Independent Order of Oddfellows, Manchester Unity: Frongoch House, Earl of Lisburne Lodge Frongoch, Merionethshire
- Independent Order of Oddfellows, Manchester Unity: Gogerddan Lodge Gogerddan, Cardiganshire
- Independent Order of Oddfellows, Manchester Unity: Gwalia district Cardiganshire;Dyfed
- Independent Order of Oddfellows, Manchester Unity: Loyal Mawddach Lodge
- Independent Order of Oddfellows, Manchester Unity: Loyal Mawddwy Lodge Dinas Mawddwy, Merionethshire
- Independent Order of Oddfellows, Manchester Unity: Loyal Temple of Love Lodge, Aberystwyth Aberystwyth, Cardiganshire
- Independent Order of Oddfellows, Manchester Unity: Padarn Lodge
- Independent Order of Oddfellows, Manchester Unity: Penrhyn-coch, Loyal St Johns Lodge Penrhyn-coch, Cardiganshire
- Independent Order of Oddfellows, Manchester Unity: Sir John Edwards Lodge
- Independent Order of Oddfellows, Manchester Unity: Talybont Loyal Iolo Goch Lodge Talybont, Cardiganshire
- Independent Order of Oddfellows: Machynlleth, Llynlleoedd Lodge Machynlleth, Montgomeryshire
- Independent Order of Oddfellows: Talley Lodge Talley, Carmarthenshire
- Independent Order of Oddfellows: Vale of Llangollen district, Cader Dinmael Lodge 1440 Llangollen, Denbighshire
- Independent Order of Rechabites: Aberystwyth Aberystwyth, Cardiganshire
- Independent Order of Rechabites: North Pembroke and South Cardigan District Pembrokeshire;Cardiganshire;Dyfed
- Independent Order of Rechabites: Soar's Tent no 957, Dinas Mawddwy, Merioneth district Dinas Mawddwy, Merionethshire
- Industrial Unrest Commission for Wales
- Inflexible
- Institute of Public Administration
- Institute of Welsh Affairs: Sefydliad Merion Cymreig
- Institution of Professional Civil Servants: National Library of Wales branch Aberystwyth, Cardiganshire
- International Bee Research Association Cardiff, Glamorgan
- International Celtic Congress
- International Celtic Congress: Wales branch
- International Order of Good Templars: Croesor Lodge Croesor, Merionethshire
- International Order of Good Templars: Deudraeth Lodge Deudraeth, Merionethshire
- International Order of Good Templars: Lleyn and Eifionydd district Lodge Lleyn, Caernarfonshire
- International Order of Good Templars: Machynlleth, Maglona Lodge Machynlleth, Montgomeryshire
- International Order of Good Templars: Ystumtuen Lodge Ystumtuen, Cardiganshire
- Isa'ndre Parish Council Isa'ndre, Cardiganshire
- Island Farm Prisoner of War Camp, Bridgend Bridgend, Glamorgan
- Italian Hero, of Aberystwyth
- Jacobite Cycle Club of North Wales
- James, schooner, of Cardigan
- Jane Ure, barque
- Jane, brig
- Jazz Heritage Wales Wales
- Reverend John Jenkins' School, Abbey Square, Chester Chester, Cheshire
- Jerusalem Calvinistic Methodist Chapel, Berriew Berriew, Montgomeryshire
- Jerusalem Calvinistic Methodist Chapel, Cerrigydrudion Cerrigydrudion, Denbighshire
- Jerusalem Calvinistic Methodist Church, Bethesda Bethesda, Caernarfonshire
- Jezreel Baptist Chapel, Goginan Goginan, Cardiganshire
- John Jones' Charity, Cosheston, Lampeter Velfrey, Lawrenny, St Davids Lampeter Velfrey, Pembrokeshire;Cosheston, Pembrokeshire;St Davids, Pembrokeshire;Lawrenny, Pembrokeshire
- John Maurice Charity, Llanbeblig and Llanmg Llanbeblig, Caernarfonshire;Llanmg, Caernarfonshire
- Joint Committee for Promoting Educational Facilities in the South Wales and Monmouthshire coalfield
- Kerry Mutual Improvement Association Kerry, Montgomeryshire
- Kerry parish Kerry, Montgomeryshire
- Kidwelly Neighbourly Society Kidwelly, Carmarthenshire
- Kidwelly, Pembrey and St Ishmael enclosure Kidwelly, Carmarthenshire
- King Edward VII Welsh National Memorial Association
- King Gould, Regimental Agent
- King Lud, steam ship
- King's Cross Tabernacle Welsh Congregational Church St Pancras, Middlesex
- Knighton parish Knighton, Radnorshire
- SS Kolyma
- Labour Party Wales
- Laleston Nursing Association Laleston, Glamorgan
- Lammas Street Welsh Congregational Church, Carmarthen Carmarthen, Carmarthenshire
- Lampeter Agricultural Society Lampeter, Cardiganshire
- Lampeter Borough Lampeter, Cardiganshire
- Lampeter Local Board of Health and Rural Sanitary Authority Lampeter, Cardiganshire
- Lampeter parish Lampeter, Cardiganshire
- Lampeter Poor Law Union Lampeter, Cardiganshire
- Lampeter Rural District Council Lampeter, Cardiganshire
- Lampeter, and Aberayron and Lampeter Highway Boards Lampeter, Cardiganshire
- Lampter Petty Sessions Lampeter, Cardiganshire
- Lancashire and Western Sea Fisheries Joint Committee Lancashire
- Laugharne Corporation Laugharne, Carmarthenshire
- League of Nations Union: Welsh national council
- League of the Empire: Montgomeryshire branch Montgomeryshire;Powys
- HMS Leopard (1659)
- Thomas and John Lewis, clerks of the bills of customs, Wales
- Libanus Calvinistic Methodist Chapel, Brynmawr Brynmawr, Brecknockshire
- Libanus Congregational Church, Cwmsyfiog Cwmsyfiog, Monmouthshire
- Libanus Independent Church, Morriston Morriston, Glamorgan
- Libanus Welsh Baptist Chapel, Treherbert Treherbert, Glamorgan
- Liberal Democrats Wales
- Liberal Party
- Liberty, hospital ship
- Liberty, yacht
- Lily, of Barmouth
- Lion Street Wesleyan Methodist Chapel, Brecon Brecon, Brecknockshire
- Lively, freights, of Laugharne
- Lively, sloop, of Aberystwyth
- Liverpool and Birkenhead Welsh Congregational Band of Hope Union Liverpool, Lancashire
- Liverpool and District Baptist Sunday School Union Liverpool, Lancashire
- Liverpool and District Baptist Union Liverpool, Lancashire
- Liverpool and District Welsh Congregational Churches Liverpool, Lancashire
- Liverpool and District Welsh Congregational Union Preaching Festival Liverpool, Lancashire
- Liverpool Calvinistic Methodist Presbytery Liverpool, Lancashire
- Liverpool Cambrian Society Liverpool, Lancashire
- HMS Liverpool (1860)
- Liverpool Independent Chapels Liverpool, Lancashire
- Liverpool Ministers Fraternal Liverpool, Lancashire
- Liverpool Welsh Free Church Liverpool, Lancashire
- Liverpool Welsh Nationalist Society Liverpool, Lancashire
- Liverpool Womens Hospital Welsh Appeal Committee Liverpool, Lancashire
- Liverpool, Manchester and District Union of Welsh Independent Chapels Liverpool, Lancashire
- Llaethliw estate Llaethliw, Cardiganshire
- Llanaber parish Llanaber, Merionethshire
- Llanarthne parish Llanarthne, Carmarthenshire
- Llanbadarn Fawr Air Raid Precautions Llanbadarn Fawr, Cardiganshire
- Llanbadarn Fawr Clergy Study Circle Llanbadarn Fawr, Cardiganshire
- Llanbadarn Fawr parish Llanbadarn Fawr, Cardiganshire
- Llanbadarn Fawr Rural Deanery Choral Union Llanbadarn Fawr, Cardiganshire
- Llanbadarnfawr parish Llanbadarnfawr, Cardiganshire
- Llanbadarnfawr War Memorial Committee Llanbadarnfawr, Cardiganshire
- Llanbeblig parish Llanbeblig, Caernarfonshire
- Llanbedr parish Llanbedr, Merionethshire
- Llanbryn-mair Girls Benefit Society Llanbryn-mair, Montgomeryshire
- Llanbryn-mair Literary Society Llanbryn-mair, Montgomeryshire
- Llanbryn-mair parish Llanbryn-mair, Montgomeryshire
- Llanbryn-mair Temperance Society Llanbryn-mair, Montgomeryshire
- Llancynfelin parish Llancynfelin, Cardiganshire
- Llandaff and Barry Conservative Association Llandaff, Glamorgan
- Llandaff Diocesan Lay Readers Association Llandaff, Glamorgan
- Llandaff Diocese Llandaff, Glamorgan
- Llandderfel parish Llandderfel, Merionethshire
- Llandderfel Thrift and Temperance Society Llandderfel, Merionethshire
- Llanddewi Brefi Burial Board Llanddewi Brefi, Cardiganshire
- Llanddewi Brefi Community Council Llanddewi Brefi, Cardiganshire
- Llanddewi Brefi parish Llanddewi Brefi, Cardiganshire
- Llanddewi Velfrey and Crinow tithes Llanddewi Velfrey, Pembrokeshire;Crinow, Pembrokeshire
- Llanddwywe parish Llanddwywe, Merionethshire
- Llandebie Chair Eisteddfod Committee Llandebie, Carmarthenshire
- Llandecwyn parish Llandecwyn, Merionethshire
- Llandeilo Public Hall and Literary Institute Llandeilo, Carmarthenshire
- Llandeilo Talybont parish Llandeilo Talybont, Glamorgan
- Llandewi Brefi Burial Board Llandewi Brefi, Cardiganshire
- Llandewibrefi Association for the Prosecution of Felons Llandewibrefi, Cardiganshire
- Llandilo and Brecon Wesleyan Methodist Circuit Brecon, Brecknockshire
- Llandeilo Wesleyan Methodist Circuit Llandilo, Carmarthenshire
- Llandinam Presbyterian Church Llandinam, Montgomeryshire
- Llandovery Borough Llandovery, Carmarthenshire
- Llandovery parish Llandovery, Carmarthenshire
- Llandovery Petty Sessions Llandovery, Carmarthenshire
- Llandovery Poor Law Union Llandovery, Carmarthenshire
- Llandovery Rural District Council Llandovery, Carmarthenshire
- Llandrinio parish Llandrinio, Montgomeryshire
- Llandudno Soldiers Recreation Committee Llandudno, Caernarfonshire
- Llandybie Colliery Sickness Fund Llandybie, Carmarthenshire
- Llandyfrydog parish Llandyfrydog, Anglesey
- Llandygwydd parish Llandygwydd, Cardiganshire
- Llandysilio parish Llandysilio, Cardiganshire
- Llandysilio-yn-Ial parish Llandysilio-yn-ial, Denbighshire
- Llandyssil parish Llandyssil, Montgomeryshire
- Llandyssul Agricultural Society Ltd Llandyssul, Cardiganshire
- Llandyssul and District Baptist Sunday School Festival Llandyssul, Cardiganshire
- Llandyssul Benefit Society Llandyssul, Cardiganshire
- Llandyssul parish Llandyssul, Cardiganshire
- Llanedi parish Llanedi, Carmarthenshire
- Llanegwad parish Llanegwad, Carmarthenshire
- Llanelli Labour Womens Advisory Council Llanelli, Carmarthenshire
- Llanelly Committee of Social Service Llanelli, Carmarthenshire
- Llanelly Hill Methodist Chapel Llanelli, Brecknockshire;Llanelly, Brecknockshire
- Llanelly Trades Council and Divisional Labour Party Llanelli, Carmarthenshire
- Llanerchfrochwel estate Guilsfield, Montgomeryshire
- Llanerchrugog Denbighshire;Clwyd
- Llanerfyl parish Llanerfyl, Montgomeryshire
- Llanerfyl tithes Llanerfyl, Montgomeryshire
- Llanfair Llanfair, Merionethshire
- Llanfair and Dolillan estates Llanfair, Cardiganshire
- Llanfair Caereinion Agricultural and Horticultural Society Llanfair Caereinion, Montgomeryshire
- Llanfair Caereinion Baptist Church Llanfair Caereinion, Montgomeryshire
- Llanfair Caereinion Electric Society Llanfair Caereinion, Montgomeryshire
- Llanfair Dyffryn Clwyd parish Llanfair Dyffryn Clwyd, Denbighshire
- Llanfair Orllwyn parish Llanfair Orllwyn, Cardiganshire
- Llanfair-ar-y-bryn parish Llanfairarybryn, Carmarthenshire
- Llanfair-juxta-Harlech parish Llanfair juxta Harlech, Merionethshire
- Llanfechain parish Llanfechain, Montgomeryshire
- Llanfihangel and Llanafan District Nursing Association Llanfihangel-y-Creuddyn, Cardiganshire
- Llanfihangel Ciliau Aeron parish Llanfihangel Ciliau Aeron, Cardiganshire
- Llanfihangel Geneu'r Glynn parish Llanfihangel Geneu'r Glynn, Cardiganshire
- Llanfihangel Glyn Myfyr Calvinistic Methodist Chapel Llanfihangel Glyn Myfyr, Denbighshire
- Llanfihangel Upper Parish Council Llanfihangel-y-Creuddyn, Cardiganshire
- Llanfihangel-ar-arth parish Llanfihangel ar Arth, Carmarthenshire
- Llanfihangel-y-Pennant parish Llanfihangel-y-Pennant, Merionethshire
- Llanfihangel-y-Traethau parish Llanfihangel-y-Traethau, Merionethshire
- Llanfwrog Baptist Church Llanfwrog, Denbighshire
- Llanfyllin Association for the Prosecution of Felons Llanfyllin, Montgomeryshire
- Llanfyllin Poor Law Union Llanfyllin, Montgomeryshire
- Llangadock Turnpike Trust Llangadock, Carmarthenshire
- Llangadock Wesleyan Methodist meeting House Llangadock, Carmarthenshire
- Llangafelach parish Llangafelach, Monmouthshire
- Llangathen parish Llangathen, Carmarthenshire
- Llangeinwen Community Council Llangeinwen, Anglesey
- Llangeinwen land tax Llangeinwen, Anglesey
- Llangeitho Benefit Society Llangeitho, Cardiganshire
- Llangeitho Female Benefit Society Llangeitho, Cardiganshire
- Llangeler parish Llangeler, Carmarthenshire
- Llangerniew Cottage Garden Improvement and Industrial Society Llangerniew, Denbighshire
- Llangibby Friendly Society Llangibby, Monmouthshire
- Llangibby parish Llangibby, Monmouthshire
- Llangloffan Baptist Church, Granston Granston, Pembrokeshire
- Llangollen and Eglwyseg National Schools Llangollen, Denbighshire
- Llangollen parish Llangollen, Denbighshire
- Llangolman parish Llangolman, Pembrokeshire
- Llangranog Parish Council Llangranog, Cardiganshire
- Llangutig parish Llangutig, Montgomeryshire
- Llanguyryfon parish Llanguyryfon, Cardiganshire
- Llangwm Tithe Defence Fund Llangwm, Denbighshire
- Llangyndeyrn and Gwendraeth Fach Defence Committee Llangyndeyrn, Carmarthenshire
- Llangynhafal parish Llangynhafal, Denbighshire
- Llangynidr Wesleyan Methodist Chapel Llangynidr, Brecknockshire
- Llangynyw tithes Llangynyw, Montgomeryshire
- Llanidloes and District Free Church Council Llanidloes, Montgomeryshire
- Llanidloes and Newtown Llanidloes, Montgomeryshire
- Llanidloes Borough Llanidloes, Montgomeryshire
- Llanidloes Borough Petty Sessions Llanidloes, Montgomeryshire
- Llanidloes Congregational Chapel Llanidloes, Montgomeryshire
- Llanidloes County Court Llanidloes, Montgomeryshire
- Llanidloes County School Llanidloes, Montgomeryshire
- Llanidloes Lower Petty Sessions Llanidloes, Montgomeryshire
- Llanidloes parish Llanidloes, Montgomeryshire
- Llanidloes Upper Petty Sessions Llanidloes, Montgomeryshire
- Llaniestyn parish Llaniestyn, Caernarfonshire
- Llanihangel Yestern Llewen parish Llanihangel Yestern Llewen, Montgomeryshire
- Llanilar and Lledrod District Nursing Association Llanilar, Cardiganshire
- Llanina parish Llanina, Cardiganshire
- Llanllyfni Ward parish Llanllyfni, Caernarfonshire
- Llannerch-y-medd Druidical Friendly Society Llannerch-y-medd, Anglesey
- Llan-non Calvinistic Methodist District Meeting Llan-non, Cardiganshire
- Llannon New Benefit Club Llannon, Carmarthenshire
- Llannor parish Llannor, Caernarfonshire
- Llanon Infant Board School Llanon, Cardiganshire
- Llanrhaiadr ym Mochnant Association for the Prosecution of Felons Llanrhaeadr-ym-Mochnant, Denbighshire
- Llanrhaiadr Hall Denbighshire;Clwyd
- Llanrhystid tithes Llanrhystid, Cardiganshire
- Llanrhystud Baptist Church Llanrhystud, Cardiganshire
- Llanrhystyd and Llangwyryfon Nursing Association Llanrhystyd, Cardiganshire
- Llanrhystyd Mefenydd parish Llanrhystyd Mefenydd, Cardiganshire
- Llanrug Free Church Council Llanrug, Caernarfonshire
- Llanrug parish Llanrug, Caernarfonshire
- Llansadwrn and Llanwrda Nursing Association Llansadwrn, Carmarthenshire
- Llansantffraid Deuddwr parish Llansantffraid Deuddwr, Montgomeryshire
- Llansantffraid Deuddwr Sion Calvinistic Methodist Church Llansantffraid Deuddwr, Montgomeryshire
- Llansantffread and Llanvillo enclosure Llansantffread, Brecknockshire
- Llansantffread iuxta Usk parish Llansantffread, Brecknockshire
- Llansantfread parish Llansantffread, Monmouthshire
- Llansilin Wesleyan Methodist Chapel Llansilin, Denbighshire
- Llanuwchllyn Male Friendly Society Llanuwchllyn, Merionethshire
- Llanuwchllyn tithe Llanuwchllyn, Merionethshire
- Llanuwchllyn Welsh Congregational Chapel Llanuwchllyn, Merionethshire
- Llanwddyn Bible Society Llanwyddn, Montgomeryshire
- Llanwddyn parish Llanwddyn, Montgomeryshire
- Llanwenarth Baptist Church Llanwenarth, Monmouthshire
- Llanwenog parish Llanwenog, Cardiganshire
- Llanwfrog Baptist Church, Ruthin Ruthin, Denbighshire
- Llanwhimp Primitive Methodist Chapel, Boughrood Boughrood, Radnorshire
- Llanwnda District Nursing Association Llanwnda, Caernarfonshire
- Llanwnda Liberal Association Llanwnda, Caernarfonshire
- Llanwnnog tithes Llanwnnog, Montgomeryshire
- Llanwrin Calvinistic Methodist Church Llanwrin, Montgomeryshire
- Llanwrin parish Llanwrin, Montgomeryshire
- Llanwrin tithes Llanwrin, Montgomeryshire
- Llanwrtyd Independent Chapel Llanwwrtyd, Brecknockshire
- Llanybydder Rural District Council Llanybydder, Carmarthenshire
- Llanychaiarn and District Nursing Association Llanychaiarn, Cardiganshire
- Llanycil parish Llanycil, Merionethshire
- Llanyfllin and Pool Lower Petty Sessions Llanyfllin, Montgomeryshire;Welshpool, Montgomeryshire
- Lledrod enclosures: Llansilin parish Lledrod, Denbighshire
- Lledrod Isaf parish Lledrod Isaf, Cardiganshire
- John Llewellyn: Sutton estate Sutton Estate, Lincolnshire
- Llewelyn Benefit Society, Lampeter Lampeter, Cardiganshire
- Llewelyn's Charity, Ystradfellte Ystradfellte, Brecknockshire
- Lleyn Rural Deanery Lleyn, Caernarfonshire
- Llidiardau Calvinistic Methodist Chapel, Llanycil Llanycil, Merionethshire
- Pierce Lloyd, Lligwy estate Lligwy, Anglesey
- Lloyd Street Congregational Church, Llanelli Llanelli, Carmarthenshire
- Lloyd's of London, marine insurers London
- Llwyncelyn Congregational Church Llwyncelyn, Cardiganshire
- Llwynpiod Calvinistic Methodist Chapel, Llanbadarn Odwyn Llanbadarn Odwyn, Cardiganshire
- Local Government Boundary Commission: Wales
- London Cymreigyddion Society London
- London Missionary Society: Welsh council
- London Montgomeryshire Society London
- London Society of Old Aberystwythians London
- London Welsh Association Football Club London
- London Welsh Charitable Aid Society London
- Loyal Order of Ancient Shepherds: Resolven Resolven, Glamorgan
- Loyalty, of Newquay
- Lunaria, barque, of Llanon
- Luton Unitarian Congregation Luton, Bedfordshire
- Machynlleth First Friendly Society Machynlleth, Montgomeryshire
- Machynlleth Highway board Machynlleth, Montgomeryshire
- Machynlleth parish Machynlleth, Montgomeryshire
- Machynlleth Petty Sessions Machynlleth, Montgomeryshire
- Machynlleth Poor Law Union Machynlleth, Montgomeryshire
- Machynlleth Red Cross Hospital Machynlleth, Montgomeryshire
- Machynlleth Rural District Council Machynlleth, Montgomeryshire
- Machynlleth Temperance Club Machynlleth, Montgomeryshire
- Machynlleth Urban District Council Machynlleth, Montgomeryshire
- Maengwyn Calvinistic Methodist Chapel, Machynlleth Machynlleth, Montgomeryshire
- Maenofferen Calvinistic Methodist Chapel, Blaenau Festiniog Blaenau Festiniog, Merionethshire
- Maenol estate, Llanidloes (Evans, Hayward and Philips families) Maenol, Montgomeryshire
- Maentwrog parish Maentwrog, Merionethshire
- Maes y Porth estate Maes Y Porth, Anglesey
- Maescanner Baptist church, Dafen Dafen, Carmarthenshire
- Maes-hafn Calvinistic Methodist Chapel, Llanferres Llanferres, Denbighshire
- Maesycwmwr parish Maesycwmwr, Cardiganshire
- Maesyfelin estate Maesyfelin, Cardiganshire
- Maesyrhelem Baptist Chapel, Llananno Llananno, Radnorshire
- Magellan
- Main Congregational Church, Meifod Main, Montgomeryshire;Meifod, Montgomeryshire
- Mallwyd Calvinistic Methodist Chapel Mallwyd, Merionethshire
- Mallwyd Urban District Council Mallwyd, Merionethshire
- Maly Bran
- Mamhilad parish Mamhilad, Monmouthshire
- Manafon parish Manafon, Montgomeryshire
- Manafon School Manafon, Montgomeryshire
- Manchester Congregational Churches Manchester, Lancashire
- Manchester Welsh National Society Manchester, Lancashire
- Manchester Welsh Wesleyan Methodist circuit and chapels Manchester, Lancashire
- Margam Abbey Margam, Glamorgan
- Maria
- Mark Master Masons of England: Loventium Lodge 1287, Aberaeron Aberaeron, Cardiganshire
- Marshfield, Coedkernow etc, house, window and lights duties Marshfield, Monmouthshire;Coedkernow, Monmouthshire;St Mellons, Monmouthshire;Peterstone, Monmouthshire
- Martin's Lane Congregational Church, Wallasey Wallasey, Cheshire
- Mathrafal Petty Sessions Mathrafal, Montgomeryshire
- Sir William Maurice, deputy vice admiral of North Wales
- Mawr Community Council Llangyfelach, Glamorgan
- Mayer Street Welsh Congregational Church, Hanley Hanley, Staffordshire
- Meibion Cynog (Sons of Cynog) Friendly Society, Llangynog Llangynog, Montgomeryshire
- Meliden parish Meliden, Flintshire
- Melindwr and district Ministers Fraternal Melindwr, Cardiganshire
- Meline parish Meline, Pembrokeshire
- Memorial College, Swansea Swansea, Glamorgan
- Menai Rural Deanery Menai, Caernarfonshire
- Merioneth Agricultural Society Merionethshire;Gwynedd
- Merioneth Eisteddfod Merionethshire;Gwynedd
- Merioneth Infantry Merionethshire;Gwynedd
- Merioneth Labour Party Merioneth, Merionethshire
- Merioneth militia Merionethshire;Gwynedd
- Merioneth Quarter Sessions Merionethshire;Gwynedd
- Merioneth Rural Sanitary Authorities and Rural District Councils Merionethshire;Gwynedd
- Merionethshire Court of Great Sessions Merionethshire;Gwynedd
- Merionethshire enclosures Merionethshire;Gwynedd
- Merionethshire Reform Association Merionethshire;Gwynedd
- Mermaid
- Merthyr Tydfil borough elections Merthyr Tydfil, Glamorgan
- Merthyr Tydfil Educational Settlement Merthyr Tydfil, Glamorgan
- Merthyr Tydfil Methodist Circuit Merthyr Tydfil, Glamorgan
- Meyrick Street Wesley Chapel, Pembroke Dock Pembroke Dock, Pembrokeshire
- Mid-Rhondda Grocers Association Rhondda, Glamorgan
- Mid-Rhondda Trades and Labour Council Rhondda, Glamorgan
- Mid-Wales Development Corporation
- Milford Baptist Church Milford Haven, Pembrokeshire
- Mining Association of Great Britain
- Ministry of Agriculture, Welsh Department
- Minwere parish Minwere, Pembrokeshire
- Miss Moyra Hill Trevor's Nursery Hospital, Chirk Chirk, Denbighshire
- Mochnant enclosure Mochnant, Denbighshire
- Moelunben Baptist Church, Llanfair Talhaearn Llanfair Talhaiarn, Denbighshire
- Mold parish Mold, Flintshire
- Monmouth Conservative Association Monmouth, Monmouthshire
- Monmouth Divisional Liberal Association Monmouth, Monmouthshire
- Monmouth Social Democratic Party Monmouth, Monmouthshire
- Monmouth taxes Monmouth, Monmouthshire
- Monmouth Turnpike Trust Monmouth, Monmouthshire
- Monmouth Union Monmouth, Monmouthshire
- Monmouthshire and South Wales Coalowners Association Monmouthshire;Gwent
- Monmouthshire Assizes Monmouthshire;Gwent
- Monmouthshire elections Monmouthshire;Gwent
- Monmouthshire Hunt Monmouthshire;Gwent
- Monmouthshire land and window taxes Monmouthshire;Gwent
- Monmouthshire Local Authorities Joint Wages Board Monmouthshire;Gwent
- Monmouthshire Quarter Sessions Monmouthshire;Gwent
- Monmouthshire tithes Monmouthshire;Gwent
- Monmouthshire Volunteer Infantry Monmouthshire;Gwent
- Monmouthshire volunteers Monmouthshire;Gwent
- Monmouthshire: sheriff Monmouthshire;Gwent
- Montgomery boroughs elections Montgomery, Montgomeryshire
- Montgomery Bowling Green Society Montgomery, Montgomeryshire
- Montgomery Calvinistic Methodist Chapel Montgomery, Montgomeryshire
- Montgomery hundred upper division taxes Montgomery, Montgomeryshire
- Montgomery Superintendent Registrar Montgomery, Montgomeryshire
- Montgomeryshire Agricultural Society Montgomeryshire;Powys
- Montgomeryshire and Shropshire Welsh Calvinistic Methodist Presbytery Montgomeryshire;Powys
- Montgomeryshire Congregational Union Montgomeryshire;Powys
- Montgomeryshire Constabulary Force Montgomeryshire;Powys
- Montgomeryshire County Herb Committee Montgomeryshire;Powys
- Montgomeryshire Court of Great Sessions Montgomeryshire;Powys
- Montgomeryshire elections Montgomeryshire;Powys
- Montgomeryshire English Congregational Union Montgomeryshire;Powys
- Montgomeryshire Flood Distress Fund Montgomeryshire;Powys
- Montgomeryshire Liberal Association Montgomeryshire;Powys
- Montgomeryshire militia Montgomeryshire;Powys
- Montgomery County Nursing Association Montgomeryshire;Powys
- Montgomeryshire Petty Sessions Montgomeryshire
- Montgomeryshire Quarter Sessions Montgomeryshire;Powys
- Montgomeryshire Tithes Montgomeryshire;Gwynedd
- Montgomeryshire Turnpike Roads Trust Montgomeryshire;Powys
- Montgomeryshire: sheriff Montgomeryshire;Powys
- Thomas Morgan, Judge Advocate General
- Moriah Calvinistic Methodist Chapel, Llanrhystud Anhuniog Llanrhystud Anhuniog, Cardiganshire
- Moriah Calvinistic Methodist Chapel, Vaynor Vaynor, Brecknockshire
- Moriah Congregational Church, Rhymney Rhymney, Monmouthshire
- Morriston War Fund Morriston, Glamorgan
- Edmund Mortimer, 3rd Earl of March Radnorshire;Powys
- Mount Zion Welsh Wesleyan Methodist Circuit, Liverpool Liverpool, Lancashire
- Mudiad Ysgolion Meithrin ( National Association of Welsh Medium Nursery Schools and Play-groups)
- Multiple Sclerosis Research Fund
- Myddelton, St Martin's St Martin's, Shropshire
- Mydriolin Reading Room Mydroilin, Cardiganshire
- Mydroilyn Congregational Chapel Mydroilyn, Cardiganshire
- Myllin Literary and Debating Society Llanfyllin, Montgomeryshire
- Mynachlogddu parish Mynachlogddu, Pembrokeshire
- Mynydd Mawr and district Free Church Council Mynydd Mawr, Caernarfonshire
- Mynydd Mawr Ministers Fraternal Mynydd Mawr, Caernarfonshire
- Mynydd Seion Calvinistic Methodist Chapel, Abergele Abergele, Denbighshire
- Mynyddbach Congregational Church, Llandeilo Fawr Llandeilo, Carmarthenshire
- Nant Gwythern, Welsh language centre
- Nant-y-glo Wesleyan Methodist Chapel, Aberystruth Aberystruth, Monmouthshire
- National Association of Decorative and Fine Arts Societies: South Wales Wales
- National British Womens Total Abstinence Union: Aberystwyth branch Aberystwyth, Cardiganshire
- National Council of Social Service: Coalfields Distress Committee
- National Curriculum History Committee for Wales
- National Eisteddfod: Abergavenny 1913 Abergavenny, Monmouthshire
- National Eisteddfod: Aberystwyth Aberystwyth, Cardiganshire
- National Eisteddfod: Bangor Bangor, Caernarfonshire
- National Eisteddfod: Denbigh 1939 Denbigh, Denbighshire
- National Eisteddfod: Dolgellau 1949 Dolgellau, Merionethshire
- National Eisteddfod: Liverpool Liverpool, Lancashire
- National Eisteddfod: Llanelli 1930
- National Eisteddfod: Machynlleth 1937 Machynlleth, Montgomeryshire
- National Eisteddfod: Pwllheli 1925 Pwllheli, Caernarfonshire
- National Farmers Union: Clynnog branch Clynnog, Caernarfonshire
- National Federation of Women's Institutes
- National Fund for Welsh Troops
- National Liberal Club London
- National Library of Wales
- National Museum of Wales
- National Pageant of Wales: Cardiff Cardiff, Glamorgan
- National Savings Movement, Wales
- National Union of General and Municipal Workers: South Wales district
- National Union of Journalists: Aberystwyth and Cambrian Coast branch Aberystwyth, Cardiganshire
- National Union of Mineworkers, North Wales area: Bersham lodge Bersham, Denbighshire
- National Union of Mineworkers, North Wales area: Blaencaegurwen lodge
- National Union of Mineworkers, North Wales area: Blaenywaun lodge
- National Union of Mineworkers, North Wales area: Hafod lodge Hafod, Denbighshire
- National Union of Womens Suffrage Societies: LLangollen branch Llangollen, Denbighshire
- Naylor Estate, Liverpool Liverpool, Lancashire
- Neath Lower parish Neath, Glamorgan
- Nebo Congregational Church, Bwlch Gwyn Bwlch Gwyn, Denbighshire
- Nefyn Conservative Association Nefyn, Caernarfonshire
- Nerissa, schooner, of Aberystwyth
- Neuadd Calvinistic Methodist Chapel, Llanidloes Llanidloes, Montgomeryshire
- Neuadd Idris (Dolgelley) Community Centre Dolgellau, Merionethshire
- Neuadd-fawr Hounds, Lampeter Lampeter, Cardiganshire
- Neuaddlwyd and Peniel Independent Churches, Aberaeron Aberaeron, Cardiganshire
- Neuadd-lwyd Congregational Chapel, Henfynyw Henfynyw, Cardiganshire;Neuadd-lwyd, Cardiganshire
- New Commonwealth Society
- New Radnor Corporation New Radnor, Radnorshire
- New Radnor enclosure New Radnor, Radnorshire
- New Road Bethel Calvinistic Methodist Chapel, Newtown Newtown, Montgomeryshire
- New Valiant, schooner, of Portmadoc
- Newborough land tax Newborough, Anglesey
- Newcastle Court estate Newcastle upon Tyne, Northumberland
- Newcastle Emlyn Old Age Pensions Sub-Committee Newcastle Emlyn, Carmarthenshire
- Newcastle Emlyn Poor Law Union Newcastle Emlyn, Carmarthenshire
- Newcastle Emlyn Town Improvement Committee Newcastle Emlyn, Carmarthenshire
- Newcastle parish Newcastle, Glamorgan
- Newgate Prison, London London
- Newport and Nevern District Nursing Association Newport, Pembrokeshire
- Newport County Borough Council Newport, Monmouthshire
- Newport Cricket Club Newport, Monmouthshire
- Newport District Turnpike Trust Newport, Monmouthshire
- Newport Football Club Newport, Shropshire
- Newport West Conservative Association Newport, Monmouthshire
- Newport West Constituency Labour Party Newport, Monmouthshire
- Newtown County Court Newtown, Montgomeryshire
- Newtown Lower Petty Sessions Newtown, Montgomeryshire
- Montgomeryshire Infirmary, Newtown Newtown, Montgomeryshire
- Newtown parish Newtown, Montgomeryshire
- Newtown tithes Newtown, Montgomeryshire
- Newtown Upper Petty Sessions Newtown, Montgomeryshire
- Newtown Wesleyan Methodist Circuit Newtown, Montgomeryshire
- No Assembly Campaign
- Noddfa Baptist Chapel, Corris Corris, Merionethshire
- Noddfa Baptist Chapel, Lampeter Lampeter, Cardiganshire
- Noddfa Baptist Church, Brymbo Brymbo, Denbighshire
- Nolan Committee on Standards in Public Life
- North Cardiganshire Archery, Croquet and Lawn Tennis Club Cardiganshire;Dyfed
- North Cardiganshire Baptist Quarterly Meeting Cardiganshire;Dyfed
- North Cardiganshire Calvinistic Methodist Presbytery Cardiganshire;Dyfed
- North Cardiganshire Congregational Churches bi-monthly meetings Cardiganshire;Dyfed
- North Cardiganshire Shire Horse Society Cardiganshire;Dyfed
- North Carmarthenshire Baptist Quarterly Meeting Carmarthenshire;Dyfed
- North Denbighshire Coroner Denbighshire;Clwyd
- North Pembrokeshire Baptists District Meeting Pembrokeshire;Dyfed
- North Wales Choral Union
- North Wales Conservative Association
- North Wales Enginemens Protective Association: Wrexham, Chirk, Buckley and Mostyn branches Wrexham, Denbighshire;Chirk, Denbighshire;Buckley, Flintshire;Mostyn, Flintshire
- North Wales Liberal Federation
- North Wales Miners Association
- North Wales Quarrymens Union
- North Wales Quarrymens Union: Caebraichycafn lodge and works committee Caebraichycafn, Caernarfonshire
- North Wales Temperance Federation
- North Wales Temperance Union
- North Wales Womens Group of the Conservative Party
- North Wales Women's Liberal Federation Wales
- North Wales Womens Temperance Union
- Northwaite
- Nottingham Welsh Society Nottingham, Nottinghamshire
- Oakfield Road Welsh Wesleyan Methodist Circuit, Liverpool Liverpool, Lancashire
- Old Bethel Congregational Chapel, Cwmaman Cwmaman, Glamorgan
- Oldfield Charity, Denbigh Denbigh, Denbighshire
- Order of Ancient Britons: Llandyssul Afon Teifi Lodge Llandyssul, Cardiganshire
- Oswestry Company of Corvisers Oswestry, Shropshire
- Oswestry parish Oswestry, Shropshire
- Oswestry tollgates Oswestry, Shropshire
- Oswestry Welsh Society Oswestry, Shropshire
- Oswestry Womens Temperance Union Oswestry, Shropshire
- Oswigo, barque
- Overton tithes Overton, Flintshire
- Owain Glyndwr Institute, Machynlleth Machynlleth, Montgomeryshire
- Revd Thomas Owen, Congregational minister, Tal-y-sarn Tal-y-sarn, Caernarfonshire
- Oxford Road Wesleyan Methodist Chapel, Hay Hay, Brecknockshire
- Oxford University, Christ Church: Montgomeryshire estate Montgomeryshire;Powys
- Oxford University, Jesus College Oxford, Oxfordshire
- Oxford University, Nuffield College Reconstruction Survey Oxford, Oxfordshire
- Paddington Society, Bangor Bangor, Caernarfonshire
- Painscastle Rural District Council and Highway Board Painscastle, Radnorshire
- Palleg commoners, Ystradgynlais Ystradgynlais, Brecknockshire
- Pandy Calvinistic Methodist Chapel and Sunday School, Llanuwchllyn Llanuwchllyn, Merionethshire
- Pant-glas Calvinistic Methodist Chapel, Llanfor Llanfor, Merionethshire
- Pant-teg Congregational Chapel, Abergwili Abergwili, Carmarthenshire
- Parc Womens Institute Parc, Gwynedd
- Park Building Club, Clydach Vale Clydach Vale, Glamorgan
- Park English Congregational Church, Llanelli Llanelli, Caernarfonshire
- Park Street Primitive Methodist Chapel, Newtown Newtown, Montgomeryshire
- Parliament for Wales Campaign: Merioneth county committee Merionethshire;Gwynedd
- Pembrey harbour Pembrey, Carmarthenshire
- Pembrey tithes Pembrey, Carmarthenshire
- Pembroke Mail Pembroke, Pembrokeshire
- Pembroke Yeomanry Cavalry Pembroke, Pembrokeshire
- Pembrokeshire Against Radar Campaign (PARC) Pembrokeshire;Dyfed
- Pembrokeshire and Cardiganshire Association of English Congregational Churches Pembrokeshire;Dyfed
- Pembrokeshire Conservative Association Pembrokeshire;Dyfed
- Pembrokeshire County Court Pembrokeshire;Dyfed
- Pembrokeshire Court of Great Sessions Pembrokeshire;Dyfed
- Pembrokeshire elections Pembrokeshire;Dyfed
- Pembrokeshire Fox Hunt Pembrokeshire;Dyfed
- Pembrokeshire Home Guard Pembrokeshire;Dyfed
- Pembrokeshire Liberal Association Pembrokeshire;Dyfed
- Pembrokeshire lieutenancy Pembrokeshire;Dyfed
- Pembrokeshire militia Pembrokeshire;Dyfed
- Pembrokeshire National Savings committees Pembrokeshire;Dyfed
- Pembrokeshire Patriotic Fund Pembrokeshire;Dyfed
- Pembrokeshire Quarter Session and County Courts Pembrokeshire;Dyfed
- Pembrokeshire Volunteers Pembrokeshire;Dyfed
- Pembrokeshire Welsh Congregational Union Pembrokeshire;Dyfed
- Pembrokeshire: sheriff Pembrokeshire;Dyfed
- Pen Dinas Excavation Fund Pen Dinas, Cardiganshire
- Penarth Congregational Chapel, Llanfair Caereinion Llanfair Caereinion, Montgomeryshire
- Penbryn parish Penbryn, Cardiganshire
- Pen-cae Congregational Chapel, Llannarth Llannarth, Cardiganshire
- Pencerrig estate Pencerrig, Radnorshire
- Pencraig Estate Pencraig, Anglesey
- Pen-dre Congregational Church, Llanfyllin Llanfyllin, Montgomeryshire
- Pendref Congregational Church, Bangor Street, Llanbeblig, Caernarfon Caernarfon, Caernarfonshire;Llanbeblig, Caernarfonshire
- Penegoes parish Penegoes, Montgomeryshire
- Peniel Calvinistic Methodist Chapel, Carno Carno, Montgomeryshire
- Peniel Congregational Chapel, Aberaeron Aberaeron, Cardiganshire
- Peniel Wesleyan Methodist Chapel, Llandyssul Llandyssul, Cardiganshire
- Pen-llwyn Calvinistic Methodist Chapel, Melindwr Melindwr, Cardiganshire
- Penllyn Calvinistic Methodist sunday schools Penllyn, Caernarfonshire
- Penllyn District Nursing Association Penllyn, Caernarfonshire
- Penmon lighthouse, Anglesey Penmon, Anglesey
- Penmorfa Calvinistic Methodist Chapel, Penbryn Penbryn, Cardiganshire
- Pennal Calvinistic Methodist Chapel Pennal, Merionethshire
- Pennal Wesleyan Methodist Chapel Pennal, Merionethshire
- Pennant Calvinistic Methodist Chapel, Llanbryn-mair Llanbryn-mair, Montgomeryshire
- Pennant estate, Montgomeryshire Pennant, Montgomeryshire
- Penparcau National School, Aberystwyth Aberystwyth, Cardiganshire
- Penrhiw Calvinistic Methodist Chapel Penrhiw, Cardiganshire
- Penhryn Quarry strike Bethesda, Caernarfonshire
- Penrhyn Slate Quarry Benefit Club Penrhyn, Caernarfonshire
- Penrhyndendraeth parish Penrhyndendraeth, Merionethshire
- Penri Baptist church, Chester Chester, Cheshire
- Pen-Sarn (English) Calvinistic Methodist Chapel, Abergele Abergele, Denbighshire
- Pen-Sarn Calvinistic Methodist Chapel, Abergele Abergele, Denbighshire
- Pentrepoeth Baptist Church, Pwllheli Pwllheli, Caernarfonshire
- Pentre-ty-gwyn Congregational Chapel, Llanfair-ar-y-bryn Llanfairarybryn, Carmarthenshire
- Penuel Baptist Chapel, Carmarthen Carmarthen, Carmarthenshire
- Penuel Baptist Church, Bangor Bangor, Caernarfonshire
- Penuel Baptist Church, Rhosllanerchrugog Rhosllanerchrugog, Denbighshire
- Penuel Calvinistic Methodist Chapel, Llangynog Llangynog, Montgomeryshire
- Pen-uwch Calvinistic Methodist Chapel, Llangeitho Llangeitho, Cardiganshire
- Pen-y-bont Baptist Church, Llandyssul Llandyssul, Cardiganshire
- Pen-y-bryn Baptist Chapel, Llangollen Llangollen, Denbighshire
- Pen-y-bryn Calvinistic Methodist Chapel, Cefn Mawr Cefn Mawr, Denbighshire
- Penycae Conservative Association Penycae, Denbighshire
- Pen-y-cefn Calvinistic Methodist Chapel, Llansannan Llansannan, Denbighshire
- Pen-y-coed (Pencoedgleision) Baptist Chapel, Betws Bledrws Betws Bledrws, Cardiganshire
- Pen-y-garn Calvinistic Methodist District Meeting Pen-y-garn, Cardiganshire
- Pen-y-graig Congregational Chapel, Llandyfaelog (Llandefeilog) Llandyfaelog, Carmarthenshire;Llandefeilog, Carmarthenshire
- Pen-y-Groes Congregational Church Pen-y-groes, Caernarfonshire
- Pen-y-groes Congregational Church, Whitechurch Pen-y-groes, Pembrokeshire;Whitechurch, Pembrokeshire
- Peterborough city elections Peterborough, Northamptonshire
- Peterston land tax Peterston, Glamorgan
- Peterwell estate, Lampeter Peterwell, Cardiganshire
- Pharmaceutical Society of Great Britain: Cardiganshire Cardiganshire;Dyfed
- Philadelphia Baptist Chapel, Swansea Swansea, Glamorgan
- Philadelphia Calvinistic Methodist Church, Morriston Morriston, Glamorgan
- Philadelphia Congregational Chapel, Llangunnor (Llangynnwr) Llangunnor, Carmarthenshire;Llangynnwr, Carmarthenshire
- James Phillips of Sedgley Sedgley, Staffordshire
- Picton Castle Church of England School and Sunday School Picton Castle, Pembrokeshire
- Benjamin Piercy Flintshire;Clwyd
- Pigeonsford, Llangrannog Pigeonsford, Cardiganshire
- Gabriel Piozzi, Bachigraig Piozzi, Flintshire
- Pisgah Congregational Church Sunday School, Talgarreg Talgarreg, Cardiganshire
- Pisgah Congregational Church, Talgarreg Talgarreg, Cardiganshire
- Pitchford Hall Pitchford Hall, Shropshire
- Pitchford parish Pitchford, Shropshire
- Pitchford parish charities Pitchford, Shropshire
- Plaid Cymru
- Plaid Cymru: Aberdare area committee Aberdare, Glamorgan
- Plaid Cymru: Bangor office Bangor, Caernarfonshire
- Plaid Cymru: Cardiff area Cardiff, Glamorgan
- Plaid Cymru: Etholaeth Ceredigion Cardiganshire;Dyfed
- Plaid Cymru: Gwent region Monmouthshire;Gwent
- Plaid Cymru: Hydro group
- Plas Aberporth, Aber-porth Aber-porth, Cardiganshire
- Plumesgate hundred land tax Plumesgate, Suffolk
- Polish Society of Cardiganshire Cardiganshire;Dyfed
- Pont Newydd Calvinistic Methodist Chapel, LLangynyw Llangynyw, Montgomeryshire
- Pontardulais Distress and Canteen Fund Pontarddulais, Glamorgan
- Pontardulais Evacuees Welfare Committee Pontarddulais, Glamorgan
- Ponterwyd Calvinistic Methodist Chapel, Cwmrheidol Cwmrheidol, Cardiganshire
- Pontesbury parish Pontesbury, Shropshire
- Pontrhydfendigaid Primary School Pontrhydfendigaid, Cardiganshire
- Pontyberem parish Pontyberem, Carmarthenshire
- Pool (Welshpool) parish Pool, Montgomeryshire
- Port of Conway Conwy, Caernarfonshire
- Port Talbot Free Church Federal Council Port Talbot, Glamorgan
- Portland Street Congregational Chapel, Aberystwyth Aberystwyth, Cardiganshire
- Portmadoc and District Liberal Club Portmadoc, Caernarfonshire
- Portmadoc Harbour Trust Portmadoc, Caernarfonshire
- Portmadoc Literary and Debating Society Portmadoc, Caernarfonshire
- Matthew Powell, Fetter Lane and Nevilles Alley estate Fetter Lane, London
- Powys Provincial Eisteddfod (Eisteddfod Talaith Powys): Llanfyllin Llanfyllin, Montgomeryshire
- Powys Provincial Eisteddfod: Carno 1967 Carno, Montgomeryshire
- Powys Provincial Eisteddfod: Oswestry 1896 Oswestry, Shropshire
- Powysland Club Welshpool, Montgomeryshire
- Powysland Museum Welshpool, Montgomeryshire
- Prendergast Burial Board Predergast, Pembrokeshire
- Presbyterian Church of Wales Wales
- Presbyterian Church of Wales, Clynnog Clynnog, Caernarfonshire
- Presbyterian Church of Wales, London London
- Presbyterian Church of Wales, Shrewsbury Shrewsbury, Shropshire
- Presbyterian College, Carmarthen Carmarthen, Carmarthenshire
- Preseli Anti-Nuclear Group Dyfed
- Press Benefit and Superannuation Society for South Wales and Monmouthshire
- Prestatyn and District Ministers Fraternal Prestatyn, Flintshire
- Prestatyn parish Prestatyn, Flintshire
- Primrose
- Principality of Wales
- Keeper of the Privy Purse
- Prosiect Addysg Ddwyieithog Y Cyngor Ysgolion
- Providence Baptist Chapel, Cwm-du, Llandeilo Llandeilo, Carmarthenshire
- Providence Wesleyan Methodist Chapel, Garthmyl, Berriew Berriew, Montgomeryshire
- Provisional Arms of Wales
- Godfrey Prythergh Caernarfonshire;Gwynedd
- Public Inquiry into the Aberfan Tip Disaster Aberfan, Glamorgan
- Pumpsaint Calvinistic Methodist Church Pumpsaint, Carmarthenshire
- Pwllheli Borough Pwllheli, Caernarfonshire
- Pwllheli Hunt Pwllheli, Caernarfonshire
- Pwllheli Ministers Fraternal Pwllheli, Caernarfonshire
- Pwllheli National School Pwllheli, Caernarfonshire
- Pwllheli Petty Sessions Pwllheli, Caernarfonshire
- Pwyllgor Datblygu Addysg Gymraeg (committee for the development of education in Welsh)
- Qualifications, Curriculum and Assessment Authority for Wales Wales
- Queen Elizabeth High School, Carmarthen Carmarthen, Carmarthenshire
- Queen Mary's Aberystwyth Needlework Guild: Surgical Requisites Association Aberystwyth, Cardiganshire
- Queen Street/St Paul's Wesleyan Methodist Chapel, Aberystwyth Aberystwyth, Cardiganshire
- Queens Diamond Jubilee Celebrations, Welshpool Welshpool, Montgomeryshire
- Queens Road Welsh Independent Chapel, Manchester Manchester, Lancashire
- Queen's Road Weslayan Methodist Chapel, Aberystwyth Aberystwyth, Cardiganshire
- Radnor Court of Great Sessions Radnorshire;Powys
- Radnor Territorial and Auxiliary Forces Association Radnorshire;Powys
- 1st, 2nd and 3rd Radnorshire Rifle Volunteer Corps Radnorshire;Powys
- Radnorshire Agricultural committee Radnorshire;Powys
- Radnorshire elections Radnorshire;Powys
- Radnorshire militia Radnorshire;Powys
- Radnorshire Quarter Sessions Radnorshire;Powys
- Radnorshire Society, London London
- Radnorshire Turnpikes Radnorshire;Powys
- Raglan and Usk Rural Deanery Monmouthshire;Gwent
- Ramoth Baptist Chapel, Llanfrothen Llanfrothen, Merionethshire
- Ramoth Baptist Church, Aber-cuch Aber-cuch, Pembrokeshire
- Ramoth Baptist Church, Hirwaun Hirwaun, Glamorgan
- HMS Ranger (1820)
- Red Cross Agriculture Fund (Rural Pennies Section): Haverfordwest area Haverfordwest, Pembrokeshire
- Red Cross Knight, barque, of Swansea Swansea, Glamorgan
- Red Roses Calvinistic Methodist Chapel, Eglwys Cymmin Eglwys Cymmin, Carmarthenshire
- Rees Davies evening school, Talgarreg Talgarreg, Cardiganshire
- Rehoboth Baptist Church, Newcastle Emlyn Newcastle Emlyn, Carmarthenshire
- Rehoboth Calvinistic Methodist Chapel, Hakin Hakin, Pembrokeshire
- Rehoboth Calvinistic Methodist Chapel, Llanelltyd Llanelltyd, Merionethshire
- Rehoboth Calvinistic Methodist Chapel, Llangadfan Llangadfan, Montgomeryshire
- Rehoboth Calvinistic Methodist Chapel, Llangollen Llangollen, Denbighshire
- Rehoboth Calvinistic Methodist Chapel, Milford Milford Haven, Pembrokeshire
- Rehoboth Calvinistic Methodist Chapel, Taliesin Taliesin, Cardiganshire
- Rehoboth Calvinistic Methodist Chapel, Tre-Taliesin Tre-Taliesin, Cardiganshire
- Religious Education Movement Wales (REMW) Wales
- Renown, brig
- Resolution (3), east indiaman
- Resolven Cricket Club Resolven, Glamorgan
- Resolven Ecclesiastical Parish Resolven, Glamorgan
- Rhaeadr Congregational Church Rhaeadr, Radnorshire
- Rhayader Recreation Club Rhayader, Radnorshire
- Rhigos Wesleyan Chapel Rhigos, Glamorgan
- Rhiwbach Slate Quarry Workmen's Benefit Society, Ffestiniog Ffestiniog, Merionethshire
- Rhondda Borough Labour Party and Trades Council Rhondda, Glamorgan
- Rhondda Conservative and Unionist Association Rhondda, Glamorgan
- Rhondda Constituency Labour Party Rhondda, Glamorgan
- Rhondda East Constituency Labour Party Rhondda, Glamorgan
- Rhondda Welsh Baptist Chapel, Hopkinstown Hopkinstown, Glamorgan
- Rhondda West Divisional Labour Party Rhondda, Glamorgan
- Rhos and District Miners Union Rhos, Denbighshire
- Rhos Welsh Baptist Chapel, Mountain Ash Mountain Ash, Glamorgan
- Rhoscolyn Calvinistic Methodist Chapel Rhoscolyn, Anglesey
- Rhosllanerchrugog Miners Association Rhosllanerchrugog, Denbighshire
- Rhosllanerchrugog Unionist Association Rhosllanerchrugog, Denbighshire
- Rhosycaerau Congregational Church Rhosycaerau, Pembrokeshire
- Rhuddlan Borough Rhuddaln, Flintshire
- Rhydlydan Calvinistic Methodist Chapel, Pentrefoelas Pentrefoelas, Denbighshire
- Rhydwilym Baptist Church Rhydwilym, Carmarthenshire
- Rhyd-wyn Baptist Chapel, Llanrhuddlad Llanrhuddlad, Anglesey
- Rhydyfelin Friendly Society, Melinbyrhedyn Melinbyrhedyn, Montgomeryshire
- Rhyd-y-parc Unitarian Chapel, Eglwys Fair a Churig Eglwysfair a Churig, Carmarthenshire
- Rhymney and Abertysswg Trades and Labour Council Rhymney, Monmouthshire;Abertysswg, Monmouthshire
- Rhymney Dairymens Association Rhymney, Monmouthshire
- Rhymney Valley Campaign Against the Poll Tax Glamorgan
- Rice Powell's Charity
- River Dee Conservancy Cheshire;Cheshire
- Robert Small
- Rogerstone window tax Rogerstone, Monmouthshire
- Rosemary Lane Horeb Baptist Chapel, Beaumaris Beaumaris, Anglesey
- Royal Cambrian Academy of Art
- Royal Cardigan Militia Cardiganshire;Dyfed
- Royal Commission for the Exhibition of 1851
- Royal Commission on Civil Liability and Compensation for Personal Injury
- Royal Commission on Land in Wales
- Royal Commission on the Ancient and Historical Monuments of Wales
- Royal Commission on the Press
- Royal Field Artillery
- HMS Royal Adelaide (1828)
- Royal Household and Wardrobe
- Royal Monmouthshire Royal Engineers (Militia) Monmouthshire;Gwent
- Royal National Lifeboat Institution: Aberystwyth branch Aberystwyth, Cardiganshire
- Royal National Lifeboat Institution: Porthdinlleyn branch Porthdinlleyn, Caernarfonshire
- Royal Society for the Protection of Birds Sandy, Bedfordshire
- Royal Welch Fusiliers (23rd Foot)
- Royal Welsh Agricultural Show
- Royal Welsh Agricultural Society
- Ruabon charity Ruabon, Denbighshire
- Ruthin British School Ruthin, Denbighshire
- Ruthin Calvinistic Methodist Association Ruthin, Denbighshire
- Ruthin Corvisers Ruthin, Denbighshire
- Ruthin Cricket Club Ruthin, Denbighshire
- Salem Baptist Chapel, Amlwch Amlwch, Anglesey
- Salem Baptist Chapel, Cynwyl Gaeo Cynwyl Gaeo, Carmarthenshire
- Salem Baptist Chapel, Newborough Newborough, Anglesey
- Salem Baptist Church, Abergele Abergele, Denbighshire
- Salem Baptist Church, Blaenau Gwent Blaenau Gwent, Monmouthshire
- Salem Baptist Church, Blaina Blaina, Monmouthshire
- Salem Baptist Church, Ferryside Ferryside, Carmarthenshire
- Salem Baptist Church, Llanrhaeadr-ym-Mochnant Llanrhaeadr-ym-Mochnant, Denbighshire
- Salem Baptist Church, Pen-y-cae Pen-y-cae, Denbighshire
- Salem Calvinistic Methodist Chapel, Dolgellau Dolgellau, Merionethshire
- Salem Coedgruffydd Congregational Church Salem, Cardiganshire
- Salem Presbyterian Church, Aberystwyth Aberystwyth, Cardiganshire
- Salem Scotch Baptist Church, Trawsfynydd Trawsfynydd, Merionethshire
- Salem Welsh Calvinistic Methodist Church, Canton, Cardiff Cardiff, Glamorgan
- Salem Wesleyan Methodist Chapel, Aberaeron Aberaeron, Cardiganshire
- Saltney enclosure Saltney, Flintshire
- Samuel Cunard
- Sandfields Presbyterian Church, Port Talbot Port Talbot, Glamorgan
- Saron Calvinistic Methodist Chapel, Llandderfel Llandderfel, Merionethshire
- Saron Calvinistic Methodist Chapel, Pont-dol-goch (Llannwnog) Pont-dol-goch, Montgomeryshire;Llannwnog, Montgomeryshire
- Saron Congregational Chapel, Llangeler Llangeler, Carmarthenshire
- Saron Welsh Calvinistic Methodists, Friog Friog, Merionethshire
- Saron Welsh Congregational Church, Troed-y-rhiw Merthyr Tydfil, Glamorgan
- Sawel Benefit Society, Llansawel Llansawel, Carmarthenshire
- Scybor-y-Coed Parish Council Scybor-y-coed, Cardiganshire
- Sea Queen
- Secondary Heads Association
- Sefydliad Dyngarol Undeb Merthyr (Merthyr Unity Philanthropic Institution) Merthyr, Carmarthenshire
- Seion Baptist Church, Treforus
- Seion Calvinistic Methodist Chapel, Bryneglwys Bryneglwys, Denbighshire
- Seion Calvinistic Methodist Chapel, Corwen Corwen, Merionethshire
- Seion Calvinistic Methodist Chapel, Llandrygarn Llandrygarn, Anglesey
- Seion Calvinistic Methodist Chapel, Llanrwst Llanrwst, Denbighshire
- Seion Congregational Church, Chapel Street, Holywell Holywell, Flintshire
- Seion Congregational Church, Conwy Conwy, Caernarfonshire
- Seion Welsh Baptist Church, Barmouth Barmouth, Merionethshire
- Seion Welsh Baptist Church, Cefn Mawr Cefn Mawr, Denbighshire
- Seion Welsh Baptist Church, Cwmaman Cwmaman, Glamorgan
- Severn Road Congregational Chapel, Cardiff Cardiff, Glamorgan
- Sharon Baptist Church, Goytre Goytre, Monmouthshire
- Shaw Street Welsh Wesleyan Methodist Circuit, Liverpool Liverpool, Lancashire
- Shelter Cymru Wales
- Shiloh Calvinistic Methodist Chapel, Llanelli Llanelli, Carmarthenshire
- Shiloh Wesleyan Methodist Chapel, Clatter (Llanwnnog) Llanwnnog, Montgomeryshire
- Shiloh/Seilo Calvinistic Methodist Chapel, Aberystwyth Aberystwyth, Cardiganshire
- Shire Horse Society: Mid-Cardiganshire branch Cardiganshire;Dyfed
- Shrewsbury Abbey Shrewsbury, Shropshire
- Shrewsbury borough elections Shrewsbury, Shropshire
- Shrewsbury Company of Shearmen Shrewsbury, Shropshire
- Shrewsbury Company of Weavers and Clothiers Shrewsbury, Shropshire
- Shropshire elections Shropshire;Shropshire
- Shropshire Fox Hounds Shropshire;Shropshire
- Shropshire militia Shropshire;Shropshire
- Shropshire: sheriff Shropshire;Shropshire
- Siloa Congregational Church, Cwmerfyn Cwmerfyn, Cardiganshire
- Siloam and Ceunant Calvinistic Methodist chapels, Llanfrothen Llanfrothen, Caernarfonshire
- Siloam Baptist Chapel, Brynamman Brynamman, Carmarthenshire
- Siloam Baptist Church, Kidwelly Kidwelly, Carmarthenshire
- Siloam Wesleyan Methodist Chapel, Aberystwyth Aberystwyth, Cardiganshire
- Siloh Welsh Baptist Chapel, Tredegar Tredegar, Monmouthshire
- Sincerity, of Aberdovey
- Sion Independent Chapel, Ceulan y Maesmawr Ceulan Y Maesmawr, Cardiganshire
- Sir Nathaniel Lloyd's Charity, Oswestry and Whittington Oswestry, Shropshire;Whittington, Shropshire
- Sirhowy Valley Baptist Union and Carmel Baptist Church Sirhowy, Monmouthshire
- Sketty and District Nursing Association Swansea, Glamorgan
- Slebech parish Slebech, Pembrokeshire
- Soar Baptist Chapel, Llanfaethlu Llanfaethlu, Anglesey
- Soar Baptist Church, Llwynhendy (Llanelli rural) Llanelli, Carmarthenshire
- Soar Calvinistic Methodist Chapel, Borth Borth, Cardiganshire
- Soar Congregational Church, Lampeter Lampeter, Cardiganshire
- Soar Welsh Congregational Church, Llanbadarn Fawr, Parsel Isaf-yn-Dre Llanbadarn Fawr, Cardiganshire;Parsel Isaf-yn-dre, Cardiganshire
- Social Democratic Party Welsh Council
- La Societe des Concerts Francais Aberystwyth, Cardiganshire
- Society for Promoting Christian Knowledge: Aberystwyth district Aberystwyth, Cardiganshire
- Society for Promoting Christian Knowledge: Llanidloes Llanidloes, Montgomeryshire
- Society for Promoting Christian Knowledge: Newcastle Emlyn branch Newcastle Emlyn, Carmarthenshire
- Society for the Diffusion of Useful Knowledge in Wales
- Society of Dairy Technology: Wales section
- Society of Free Catholics Llanarth, Cardiganshire
- Solva Roads of Remembrance Solva, Pembrokeshire
- Solway Prince
- Sons of St David Friendly Society: Llanfyllin Llanyfllin, Montgomeryshire
- South African War Fund, Merioneth Merionethshire;Gwynedd
- South Glamorgan Labour Party South Glamorgan
- South Lancashire Regiment (Prince of Wales's Volunteers) (40/82th Foot) Lancashire
- South Pembrokeshire Congregational Association Pembrokeshire;Dyfed
- South Wales Baptist College, Cardiff Cardiff, Glamorgan
- South Wales Borderers (24th Foot)
- South Wales Football Association
- South Wales Methodist Circuit District Synods
- South Wales Miners Federation: Tor-y-graig lodge
- South Wales Women's Miners Support Group
- South Wales Womens Temperance Union
- South West Wales Presbytery Wales
- Southport Welsh Society Southport, Lancashire
- St Andrew's Presbyterian Church, Pembroke Dock Pembroke Dock, Pembrokeshire
- St Asaph diocese St Asaph, Flintshire
- St Asaph parish St Asaph, Flintshire
- St Asaph Town St Asaph, Flintshire
- St Athan parish St Athan, Glamorgan
- St Davids diocese St Davids, Pembrokeshire
- St Davids diocese estates St Davids, Pembrokeshire
- St David's Forum
- St David's Presbyterian Church, Kenfig Hill Bridgend, Glamorgan
- St David's School, independent girls school, Ashford Ashford, Kent;London;Clerkenwell, Middlesex;Camden, Middlesex;Powis Castle, Montgomeryshire
- St David's Society of Hong Kong
- St David's Unity of Ivorites: Aberdare district, Blaenllechau Lodge Blaenllechau, Glamorgan
- St David's Unity of Ivorites: Aberystwyth district, Castell Gwalter Lodge, Llanfihangel Genau'r-glyn Llanfihangel Geneu'r Glynn, Cardiganshire
- St David's Unity of Ivorites: Aberystwyth district, Ysbyty Ystwyth Lodge Ysbyty Ystwyth, Cardiganshire
- St David's Unity of Ivorites: Cwmavon and Neath district, Prince Llewelyn Lodge Cwmavon, Glamorgan;Neath, Glamorgan
- St David's Unity of Ivorites: Godre'rgraig, Ystalyfera Godre'rgraig, Glamorgan
- St David's Unity of Ivorites: Llandeilo district, Glanamman Lodge Llandeilo, Carmarthenshire
- St David's Unity of Ivorites: Troedyrhiw district lodges Troedyrhiw, Glamorgan
- St David's Unity of Ivorites: Tyssul Lodge, Llandyssul Llandyssul, Cardiganshire
- St Dogmaels, Poor Law Institution at Albro Castle St Dogmaels, Pembrokeshire
- St George schools St George, Denbighshire
- St Helens Welsh Baptist Church St Helens, Lancashire
- St John Wesleyan Methodist Chapel, Carno Carno, Montgomeryshire
- St Johns English Congregational Church, Flint Flint, Flintshire
- St Johns Wesleyan Methodist Chapel, Llandrindod Wells Llandrindod Wells, Radnorshire
- St Michael and All Angels parish, Aberystwyth Aberystwyth, Cardiganshire
- St Nicholas parish St Nicholas, Pembrokeshire
- St Paul's Methodist Church Annual Eisteddfod, Aberystwyth Aberystwyth, Cardiganshire
- St Paul's Square Baptist Church, Liverpool Liverpool, Lancashire
- St Peter's College, Prior Park, Bath Bath, Somerset
- St Stephen parish, Old Radnor Old Radnor, Radnorshire
- St Werburgh's Abbey, Chester (later Cathedral) Chester, Cheshire
- 64th (2nd Staffordshire) Regiment of Foot
- Staffordshire: sheriff Staffordshire;Staffordshire
- Stamp Office, Machynlleth Machynlleth, Montgomeryshire
- Stanhope Street Welsh Baptist Chapel, Liverpool Liverpool, Lancashire
- Star, sloop
- Stockton-on-Tees Welsh Wesleyan Methodist Circuit Stockton-on-Tees, Durham
- Strata Florida Abbey Strata Florida, Cardiganshire
- Strata Marcella Abbey Montgomeryshire;Powys
- Struet Calvinistic Methodist Chapel, Brecon Brecon, Brecknockshire
- Swansea School Board Swansea, Glamorgan
- Swansea Union of Social Service Swansea, Glamorgan
- Swansea volunteers Swansea, Glamorgan
- Swansea yeomanry Swansea, Glamorgan
- Sychnant Calvinistic Methodist Chapel, St Harmon St Harmon, Radnorshire
- Sylatin parish Sylatin, Shropshire
- Sylph, brigantine
- Tabernacl Calvinistic Methodist Chapel, Ruthin Ruthin, Denbighshire
- Tabernacle and Trefeini Calvinistic Methodist Churches, Blaenau Festiniog Blaenau Festiniog, Merionethshire
- Tabernacle Baptist Chapel, Bodedern Bodedern, Anglesey
- Tabernacle Baptist Chapel, Llannerch-y-medd Llannerch-y-medd, Anglesey
- Tabernacle Baptist Church, Brymbo Brymbo, Denbighshire
- Tabernacle Baptist Church, Carmarthen Carmarthen, Carmarthenshire
- Tabernacle Baptist Church, Cwmyoy Cwmyoy, Monmouthshire
- Tabernacle Calvinistic Methodist Chapel, Aberystwyth Aberystwyth, Cardiganshire
- Tabernacle Calvinistic Methodist Chapel, Arddleen (Guilsfield) Guilsfield, Montgomeryshire
- Tabernacle Calvinistic Methodist Chapel, Cardigan (Aberteifi) Cardigan, Cardiganshire;Aberteifi, Cardiganshire
- Tabernacle Calvinistic Methodist Chapel, Garndiffaith, (Abersychan) Abersychan, Monmouthshire
- Tabernacle Welsh Congregational Church, Crewe Crewe, Cheshire
- Tabernacle Welsh Congregational Church, Liverpool Liverpool, Lancashire
- Tabernacle Welsh Congregational Church, Shrewsbury Shrewsbury, Shropshire
- Tabernacle Wesleyan Methodist Chapel, Machynlleth Machynlleth, Montgomeryshire
- Tabor Calvinistic Methodist Chapel, Llangwyryfon Llangwyryfon, Cardiganshire
- Taf Valley Temperance Union Taf Valley, Carmarthenshire
- Talgarth District Highway Board Talgarth, Brecknockshire
- Talsarn fair Talsarn, Cardiganshire
- Talsarnau parish Talsarnau, Merionethshire
- Taltreuddyn estate Taltreuddyn, Anglesey
- Tal-y-bont Agricultural Show Committee Tal-y-bont, Merionethshire
- Talybont and North Cardiganshire Agricultural Show Talybont, Cardiganshire
- Tal-y-bont Baptist Church Tal-y-bont, Cardiganshire
- Tal-y-bont Calvinistic Methodist Chapel, Llanycil Llanycil, Merionethshire
- Tal-y-wern Baptist Church Tal-y-wern, Montgomeryshire
- HMS Tartarus (1834)
- Tavernspite Turnpike Trust Tavernspite, Pembrokeshire
- Tivy-side Hunt Pembrokeshire;Dyfed
- Toc H: Presteigne branch Presteigne, Radnorshire
- Tourmaline
- Towyn Anti-Tithe Society Towyn, Merionethshire
- Towyn District King Edward Memorial Towyn, Merionethshire
- Towyn Liberal Committee Towyn, Merionethshire
- Towyn parish Towyn, Merionethshire
- Transport and General Workers Union: 4/780 Presteigne branch Presteigne, Radnorshire
- Trawsfynydd parish Trawsfynydd, Merionethshire
- Tredegar races Tredegar, Monmouthshire
- Tredegar, of Newport
- Trefecca College Trefecca, Brecknockshire
- Trefeglwys Grouped Council Schools Trefeglwys, Montgomeryshire
- Trefeglwys parish Trefeglwys, Montgomeryshire
- Trefriw parish Trefriw, Caernarfonshire
- Tregaron Development Society Tregaron, Cardiganshire
- Tregaron Union School Board Tregaron, Cardiganshire
- Tregaron Wesleyan Methodist Chapel, Caron-is-clawdd Caron-is-clawdd, Cardiganshire
- Tregrug enclosure Tregrug, Monmouthshire
- Treherbert British School Treherbert, Glamorgan
- Trewern Hall estate, Buttington Trewern, Montgomeryshire
- Trinity Chapel, Clydach Clydach, Glamorgan
- Triton, brig, of Cardigan
- Troedrhiwdalar Congregational Chapel, Llanafan Fawr Llanafan Fawr, Brecknockshire
- Troed-yr-aur Parish Council Troedyraur, Cardiganshire
- Troedyraur tithes Troedyraur, Cardiganshire
- Troedyrhiw and District United Choir Troedyrhiw, Glamorgan
- Troedyrhiw Nomads Touring Club Troedyrhiw, Glamorgan
- HMS Tweed (1759)
- Sir Leonard Twiston Davies, Rockfield Park Rockfield, Monmouthshire
- Ty Cenedl
- Ty Hen Calvinistic Methodist Chapel, Tre-lech a'r Betws Tre-lech A'r Betws, Carmarthenshire
- Ty Mawr Calvinistic Methodist Church Ty Mawr, Cardiganshire
- Ty-Llwyd estate Ty-llwyd, Cardiganshire
- Tylorstown Colliery Explosion Local Relief Fund Tylorstown, Glamorgan
- Tylorstown Explosion Trust Fund Tylorstown, Glamorgan
- SS Tyninghame
- Tywyn Silver Band Tywyn, Caernarfonshire
- Ucha'dre Parish Council Ucha'dre, Cardiganshire
- Undeb Amaethwyr Cymru
- Undeb Cerddorol Dirwestwyr Ardudwy (Ardudwy Temperance Union) Ardudwy, Merionethshire
- Undeb Cymanfa Bregethu Annibynwyr, Liverpool Liverpool, Lancashire
- Undeb Cymru Fydd (New Wales Union)
- Undeb Cymru Fydd (New Wales Union): Llanelli branch Llanelli, Carmarthenshire
- Undeb Cymru Fydd (New Wales Union): Montgomeryshire branch Montgomeryshire;Powys
- Undeb Cymru Fydd (New Wales Union): Pontypridd branch Pontypridd, Glamorgan
- Undeb Cymru Fydd (New Welsh Union): South Cardiganshire branch Cardiganshire;Dyfed
- Undeb Dirwestol Dyffryn Cleddau (Vale of Cleddau Temperance Union) Cleddau, Pembrokeshire
- Undeb Dirwestol Dyffryn Taf (Dyffryn Taf Temperance Union) Dyffryn Taf, Pembrokeshire
- Undeb Dirwestol Gogledd Ceredigion (North Cardiganshire Temperance Union) Cardiganshire;Dyfed
- Undeb Dirwestol Merched Cymreig Llundain (London Welsh Womens Temperance Union) London
- Undeb Eglwysi Cymraeg Wallasey Wallasey, Cheshire
- Undeb y Brythoniaid (British Language Union)
- Undeb y Brythoniaid, Birmingham (Birmingham Brithoniaid Union) Birmingham, Warwickshire
- Undeb y Cymdeithasau Cymraeg (Union of Welsh Societies)
- Undeb y Cymdeithasau Cymraeg (Union of Welsh Societies): Annual Welsh Summer School
- Undeb y Cymry ar Wasgar (Union of Welsh Exiles)
- Unemployment Assistance Board
- Unemployment Assistance Board Cardiff District Cardiff, Glamorgan
- Unemployment Assistance Board Sports and Social Club Cardiff District Cardiff, Glamorgan
- Union of Welsh Publishers and Booksellers
- Union of Welsh Teachers
- Union of Young Baptists of Wales
- Union, schooner
- United Lunatic Asylum for Cardigan, Carmarthen, Glamorgan and Pembroke Carmarthenshire;Pembrokeshire;Glamorgan;Cardiganshire;Dyfed
- United Missionary Council for Wales
- United Reformed Church Province of Wales Wales
- University College of North Wales, Bangor: Old Students Association Bangor, Caernarfonshire
- University College of Wales Agricultural Debating Society, Aberystwyth Aberystwyth, Cardiganshire
- University College of Wales Celtic Society, Aberystwyth Aberystwyth, Cardiganshire
- University College of Wales Cosmopolitan Club, Aberystwyth Aberystwyth, Cardiganshire
- University College of Wales Gymnastic Club, Aberystwyth Aberystwyth, Cardiganshire
- University College of Wales Literary and Debating Society, Aberystwyth Aberystwyth, Cardiganshire
- University College of Wales Music Society, Aberystwyth Aberystwyth, Cardiganshire
- University College of Wales Rustics Club, Aberystwyth Aberystwyth, Cardiganshire
- University College of Wales Scientific Society, Aberystwyth Aberystwyth, Cardiganshire
- University College of Wales, Aberystwyth Aberystwyth, Cardiganshire
- University College of Wales, Aberystwyth/University College London: Joint Labour Club Aberystwyth, Cardiganshire
- University College of Wales, Aberystwyth/University College London: Joint Music Union Aberystwyth, Cardiganshire
- University College of Wales, Aberystwyth: Agricultural Club Aberystwyth, Cardiganshire
- University College of Wales, Aberystwyth: Athletics Field committee Aberystwyth, Cardiganshire
- University College of Wales, Aberystwyth: Botanical Club Aberystwyth, Cardiganshire
- University College of Wales, Aberystwyth: Central Athletic Board Aberystwyth, Cardiganshire
- University College of Wales, Aberystwyth: Debates Union Aberystwyth, Cardiganshire
- University College of Wales, Aberystwyth: Eisteddfod Committee Aberystwyth, Cardiganshire
- University College of Wales, Aberystwyth: Film Society Aberystwyth, Cardiganshire
- University College of Wales, Aberystwyth: Inter-College Eisteddfod committees Aberystwyth, Cardiganshire
- University College of Wales, Aberystwyth: Music Department Aberystwyth, Cardiganshire
- University College of Wales, Aberystwyth: Old Students Association Aberystwyth, Cardiganshire
- University College of Wales, Aberystwyth: Sports Committee Aberystwyth, Cardiganshire
- University College of Wales, Aberystwyth: Students' Representative Council Aberystwyth, Cardiganshire
- University of Wales Aberystwyth Ceramic Archive Aberystwyth, Cardiganshire
- University of Wales Central Students' Representative Council
- University of Wales Guild of Students Agricultural Section
- University of Wales Guild of Students Play-Reading Circle
- Urdd Gobaith Cymru (Welsh League of Youth)
- Urdd National Eisteddfod: Amman Valley Carmarthenshire;Dyfed
- Usk Lancasterian School Usk, Monmouthshire
- Usk parish Usk, Monmouthshire
- Uwch Llifon Temperance Union Llifon, Anglesey
- Uwchaled Nursing Association Uwchaled, Denbighshire
- Upper Vaenor Parish Council Faenor Uchaf, Cardiganshire;Upper Vaenor, Cardiganshire
- Vale of Clwyd Welsh Red Clover Growers Association, Denbighshire Denbighshire;Clwyd
- Vale of Glamorgan Liberal Association Glamorgan
- Vale of Glamorgan Social Democratic Party Glamorgan
- Varteg Wesleyan Methodist Chapel, Abersychan Abersychan, Monmouthshire
- Hon G L Vaughan Cardiganshire;Dyfed
- Viking, of Barmouth
- HMS Viper (1831)
- Virginia Street Baptist Church, Liverpool Liverpool, Lancashire
- Viscount Sandon
- Volage
- Wales Advisory Body for Local Authority Higher Education
- Wales Deaf Broadcasting Council Wales
- Development Board for Rural Wales
- Wales Federation of Young Farmers Clubs Wales
- Wales for the Assembly Campaign
- Wales Rural Development Board Enquiry
- Wales Tourist Board
- Wales Trades Union Council/Cyngor Undebau Llafur Cymru
- Wales Women's National Coalition Wales
- Wallasey Welsh Baptist Chapel Wallasey, Cheshire
- Warwickshire: sheriff Warwickshire;Warwickshire
- Waun-llan Wesleyan Methodist Chapel, Llandybie Llandybie, Carmarthenshire
- Welch Regiment (41/69th Foot)
- Welsh Agricultural Organisation Society Ltd
- Welsh Amateur Music Federation
- Welsh Army Corps
- Welsh Arts Council
- Welsh Assembly of the Methodist Church
- Welsh Association for Social Work Development
- Welsh Association of Community and Town Councils
- Welsh Association of Lecturers in Mathematics in the Area Training Organisation (WALMATO)
- Welsh Baptist Temperance Society: Llanfair Caereinion Llanfair Caereinion, Montgomeryshire
- Welsh Bibliographical Society
- Welsh Bibliographical Society: National Library of Wales branch Aberystwyth, Cardiganshire
- Welsh Calvinistic Methodist Connexion
- Welsh Calvinistic Methodists Wales
- Welsh Charity School, Ashford Ashford, Middlesex
- Welsh Chess Union Wales
- Welsh Circulating Charity Schools
- Welsh Committee of the Social Democratic Party/Liberal Party Alliance
- Welsh Council of Churches
- Welsh Development Agency Cardiff, Glamorgan
- Welsh Film Board (Bwrdd Ffilmiau Cymraeg)
- Welsh Folk Song Society
- Welsh Government Cardiff, Glamorgan
- Welsh Harp Society (Cymdeithas Telynau Cymru)
- Welsh Hospital, South Africa
- Welsh Housing and Development Association
- Welsh Institution, Llandovery Llandovery, Carmarthenshire
- Welsh Language Debating Society, St David's College, Lampeter Lampeter, Cardiganshire
- Welsh Language Interdenominational Committee
- Welsh Liberal Party
- Welsh Library Association
- Welsh Ministers' Fraternal, Liverpool and district Liverpool, Lancashire
- Welsh Music Information Centre Cardiff, Glamorgan
- Welsh Non-County Boroughs Association
- Welsh Plant Breeding Station Cardiganshire;Dyfed
- Welsh School of Social Service
- Welsh Schoolboys Camp Movement
- Welsh Secondary Schools Association
- Welsh Services Club, London London
- The Welsh Baptist Chapel, London London
- Welsh Town Planning and Housing Trust
- Welsh Troops' Children's Fund
- Welsh Woollen Manufacturers Association
- Welshpool Boating Club Welshpool, Montgomeryshire
- Welshpool Borough Welshpool, Montgomeryshire
- Welshpool Civic Society Welshpool, Montgomeryshire
- Welshpool Dorcas Society Welshpool, Montgomeryshire
- Welshpool English Wesleyan Methodist Circuit Welshpool, Montgomeryshire
- Welshpool Free Public Library Welshpool, Montgomeryshire
- Welshpool National School Welshpool, Montgomeryshire
- Welshpool parish Welshpool, Montgomeryshire
- Welshpool Petty Sessions Welshpool, Montgomeryshire
- Welshpool Second Friendly Society Welshpool, Montgomeryshire
- Welshpool steeplechases Welshpool, Montgomeryshire
- Welshpool Third Friendly Society Welshpool, Montgomeryshire
- Welshpool United Choir Welshpool, Montgomeryshire
- Welshpool War Memorial Welshpool, Montgomeryshire
- Wenniar estate, Glyncesnog Wenniar, Denbighshire
- Wesleyan Methodist Church: Wales
- West Carmarthenshire Congregational Quarterly meeting Carmarthenshire;Dyfed
- West Dereham Abbey West Dereham, Norfolk
- West Street Wesleyan Methodist Chapel, Knighton Knighton, Radnorshire
- Western Sea Fisheries District
- Westmoreland Street Baptist Church, Liverpool Liverpool, Lancashire
- Wheeler Street Welsh Congregational Church, Birmingham Birmingham, Warwickshire
- Whitchurch Free Christian Church Whitchurch, Shropshire
- Whitford (Flintshire) Friendly Society Whitford, Flintshire
- Whittington tithes Whittington, Shropshire
- Henry Whyte of Fryers Fryers, Anglesey
- John Wilkinson, ironmaster, Bradley Bradley, Staffordshire
- William Jones Committee Llangadfan, Montgomeryshire
- William, schooner
- Samuel Williams, Pembs estates Pembrokeshire;Dyfed
- Thomas Molyneux Williams of Penbedw Penbedw, Denbighshire
- William Evans Williams: Pwllypant Pwll-y-pant, Glamorgan
- Winterbourne Steepleton parish Winterbourne Steepleton, Dorset
- Wiston parish Wiston, Pembrokeshire
- Womens Association of the Welsh Independent Churches
- Womens International League for Peace and Freedom: Aberystwyth branch Aberystwyth, Cardiganshire
- Sir Mark Wood of Pall Mall, London Monmouthshire;Glamorgan;Gwent
- Wood Street Congregational Church and Sunday School, Cardiff Cardiff, Glamorgan
- William Wood: Gwernyfed estate Gwernyfed, Brecknockshire
- Woodlands Baptist Church, Birkenhead Birkenhead, Cheshire
- Workers Educational Association
- Wrexham Borough Wrexham, Denbighshire
- Wrexham Borough Museum Wrexham, Denbighshire
- Wrexham Conservative Club Wrexham, Denbighshire
- Wrexham Division Conservative and National Liberal Association Wrexham, Denbighshire
- Wrexham Division Womens Constitutional Association Wrexham, Denbighshire
- Wrexham Ministers Fraternal Wrexham, Denbighshire
- Wye Fisheries Association
- Wyeside Bowmen Brecknockshire;Powys
- Wyeside Farmers Association Brecknockshire;Powys
- Y Deml Baptist Church and Sunday School, Newport Newport, Monmouthshire
- Y Graig Unitarian Chapel, Trebanos Trebanos, Glamorgan
- Y Gymdeithas Undodaidd Gymreig (Welsh Unitarian Society)
- Ynys estate, Rhydfelan, Pontypridd Pontypridd, Glamorgan
- Ynys Fach Baptist Church Ynyshir, Glamorgan
- York (4), east indiaman
- York Trust and York Clinic for Psychological Medicine, Guy's Hospital London
- Young Mens Christian Association: Aberystwyth Aberystwyth, Cardiganshire
- Young Womens Christian Association: Welsh Division
- Yr Academi Gymreig (The Welsh Academy)
- Yr Hen Gapel Congregational Church, Llanbryn-Mair Llanbryn-mair, Montgomeryshire
- Yr Ymgyrch Newydd yng Nghymru (The Christian Campaign in Wales)
- Ysbytty Ystiryth parish Ysbytty Ystiryth, Cardiganshire
- Ysbyty Ystwyth Calvinistic Methodist Chapel Ysbyty Ystwyth, Cardiganshire
- Ysgol Sir Bethesda Bethesda, Caernarfonshire
- Yspytty Ifan parish Yspytty Ifan, Denbighshire
- Ystradfellte parish Ystradfellte, Brecknockshire
- Ystradgynlais Lower parish Ystradgynlais Lower, Brecknockshire
- Ystradmeurig School Ystradmeurig, Cardiganshire
- Ystradyfodwg parish Ystradyfodwg, Glamorgan
- Zion Baptist Chapel, Llanidloes Llanidloes, Montgomeryshire
- Zion Chapel, Carmarthen Carmarthen, Carmarthenshire
- Zoar Baptist Church, Rhymney Rhymney, Glamorgan
- Zoe
Persons (2031)
- Aaron, Richard Ithamar (1901-1987), philosopher
- Abse, Dannie (1923-2014), poet novelist and dramatist
- Abse, Leo (1917-2008), Labour MP
- Acheson, Dean (1893-1971) American Secretary of State
- Acland, Sir Arthur Herbert Dyke (1847-1926), 13th Baronet, MP
- Adami, John George (1862-1926), pathologist
- Adams, David William (c1797-1855), curate Boulston, Pembrokeshire;Freystrop, Pembrokeshire;Haverfordwest, Pembrokeshire
- Adams, Sam (b1934), poet, critic and editor
- Adams, William George Stewart (1874-1966), public servant and warden of All Souls College Oxford
- Adcock, Arthur St John (1864-1930), novelist
- Addams-Williams, William (1787-1861), MP for Monmouthshire
- Ainger, Nicholas Richard (b 1949) MP
- Ainslie, Sir Robert (1730-1812) 1st Baronet Diplomat MP Numismatist
- Airy, Sir George Biddell (1801-1892) Knight, astronomer and mathematician
- Aitken, William Maxwell (1879-1964) 1st Baron Beaverbrook, newspaper proprietor
- Alcock, Leslie (1925-2006), archaeologist
- Alexander, Ewart (b 1931), playwright
- Allanson, Cecil John Lyons (1877-1943), Colonel, colonial administrator Gallipoli, Turkey
- Allen, Anthony (d 1754) Lawyer and Antiquary
- Allen, Charles Francis Egerton (1847-1927) MP
- Allen, Lancelot Baugh (1774-1845) Warden and Master of Dulwich College
- Anderson, John Redwood (1883-1964) Poet
- Andrews, Leighton (b 1957), politician
- Anne (1665-1714) Queen of Great Britain and Ireland
- Anwyl, Sir Edward (1866-1914) Knight, Celtic scholar
- Anwyl, John Bodfan (1875-1949), Welsh scholar and Congregational minister Chester, Cheshire;Carmarthen, Carmarthenshire;Pontypridd, Glamorgan;Aberystwyth, Cardiganshire
- Apivor, Denis (b 1916) Composer
- Archdall, Henry Kingsley (1886-1976) Chancellor of St Davids
- Archer, Richard Lawrence (1874-1953) Educationalist
- Archer, Sir Simon (1581-1662) Knight, antiquary and MP
- Arnold, Matthew (1822-1888), poet and critic
- Arnot, Robin Page (1890-1986) Communist Writer and Historian
- Arundell, Mary Anne (1787-1845) wife of 10th Baron Arundell of Wardour
- Ashton, Charles (1848-1899) Bibliographer
- Ashton, Glyn Mills (1919-1991) Keeper of the Salisbury Library University College Cardiff
- Asquith, Herbert Henry (1852-1928) 1st Earl of Oxford and Asquith, statesman
- Astor, Nancy Witcher (1879-1964) Viscountess Astor, MP
- Atterbury, Francis (1663-1732), Dean of Westminster and Bishop of Rochester
- Attlee, Clement Richard (1883-1967) 1st Earl Attlee, statesman
- Auden, Wystan Hugh (1907-1973), poet York, Yorkshire
- Austin, Sarah (1793-1867), translator
- Aydelotte, Frank (1880-1956) American Lawyer and Educationist
- Backhouse, James (1794-1869) Quaker Missionary Naturalist
- Bagot, Lewis (1740-1802) Bishop of St Asaph
- Bain, John Vernon (1922-2007), poet
- Baker, Elizabeth (c 1720-1799) diarist
- Baker, Sir Herbert (1862-1946) Knight, architect
- Baldwin, Stanley (1867-1947) 1st Earl Baldwin of Bewdley, statesman
- Balfour, Arthur James (1848-1930) 1st Earl of Balfour, statesman
- Ballinger, Sir John (1860-1933) Knight Educationist and Librarian
- Banks, Sir Joseph (1743-1820) Knight, Baronet, naturalist
- Banks, Robert Banks Hodgkinson (1722-1792), antiquary
- Barbier, Lucie (1875-1963), singer and pianist
- Barlow, Thomas (1607-1691) Bishop of Lincoln
- Barnes, Sir George Reginald (1904-1960) Knight, Principal of University College of North Staffordshire
- Barnie, John E (b1941), poet, writer and former editor of "Planet" magazine Abergavenny, Monmouthshire
- Barnwell, Edward Lowry (1813-1887) antiquary and schoolmaster
- Barrington, Daines (1727-1800), lawyer, antiquary and naturalist
- Barry, James (1667-1748) 4th Earl of Barrymore
- Bartlett, David Daniel (1900-1977) Bishop of St Asaph Cambridge, Cambridgeshire;St Asaph, Flintshire;Lampeter, Cardiganshire;Pembroke Dock, Pembrokeshire
- Barton, Cecilia (fl 1952-1999), politician
- Bassett, Thomas (fl 1906-1943) Baptist Minister
- Bateman, David William (1898-1967) Artist
- Baxter, William (1650-1723) Scholar
- Beaumont, James (d 1750), Methodist preacher
- Bebb, William Ambrose (1894-1955), writer and historian
- Behrens, Sir Leonard Frederick (1890-1978) Knight, politician
- Bell, Carys (1930-2001), author and broadcaster
- Bell, Sir Harold Idris, (1879-1967), Knight, papyrologist, classical historian and Welsh scholar Epworth, Lincolnshire
- Bell, James (d 1740) Minister of Logie
- Benjamin, Thomas Cynfelyn (1850-1925) Nonconformist Minister Poet as Cynfelyn
- Bennett, Nicholas (1823-1899), musician and historian
- Bennett, Nicholas Jerome (b 1949) Conservative MP
- Bennett, Richard (1860-1937), historian
- Benn-Walsh, Sir John (1759-1825), 1st Baronet Indian Administrator
- Bentham, Thomas (1513-1578) Bishop of Lichfield and Coventry
- Bentley, George (1828-1895), publisher and author
- Bentley, Richard (1794-1871), publisher
- Bere, Cliff (1915-1997) Welsh nationalist
- Beresford, John Davys (1873-1947) Author
- Berry, Ron (1920-1997), novelist
- Best, Keith Lander (b 1949) Conservative MP
- Bethell, Christopher (1773-1859) Bishop of Bangor
- Bevan, Aneurin (1897-1960), statesman
- Bevin, Ernest (1881-1951), statesman and trade union leader
- Beynon, Thomas (1745-1833) Archdeacon of Cardigan Patron of Welsh Literature
- Bickersteth, John Burgon (1888-1979) Author
- Bickham, Spencer Henry (fl 1900-1920) antiquary
- Biddulph, Robert Myddelton- (1805-1872) MP
- Biedermann, Henry Augustus (1744-1816) Surveyor
- Bielski, Alison (1925-2014), Poet
- Bigge, Sir Lewis Amherst Selby- (1860-1951) 1st Baronet Permanent Secretary for Education
- Birch, Walter de Gray (1842-1924), antiquary and editor
- Black, Peter (b1960), Welsh Liberal Democrat politician Wirral, Cheshire;Swansea, Glamorgan
- Blackmore, Richard Doddridge (1825-1900), author
- Blackwell, John (1797-1840) Rector of Maenordeifi, Welsh poet as Alun
- Blackwood, William (1836-1912), publisher
- Bodwrda, William (1593-? 1670) Vicar of Aberdaron
- Bonner, Richard (1787-1867) Wesleyan Methodist Minister
- Borrow, George Henry (1803-1881), writer and traveller
- Bosanquet, Robert Carr (1871-1935) Archaeologist
- Bottomley, Gordon (1874-1948), poet and dramatist
- Bourdillon, Francis William (1852-1921) Poet and Critic
- Bowdler, Henrietta Maria (1754-1830) religious writer
- Bowen, David (1874-1955) Baptist Minister
- Bowen, Emrys George (1900-1983) Geographer and Anthropologist
- Bowen, Euros (1904-1988) Rector of Llangywair, Welsh poet
- Bowen, Evan Roderic (1913-2001), Barrister and Politician
- Bowen, Hannah (1729-1805) Methodist
- Bowen, Robin Huw (fl 1989-1998) harpist and music publisher
- Bowen, Zonia M (fl 1965-2007), first National Secretary of Merched y Wawr
- Bowles, William Lisle (1762-1850), Canon of Salisbury, poet, antiquary
- Braby, Dorothea (1909-1987), illustrator and graphic artist
- Brackenbury, Joseph (1788-1864) Poet
- Bradney, Sir Joseph Alfred (1859-1933) Knight Colonel and Historian
- Bramston, Eliza (d 1870) daughter of Admiral Sir Eliab Harvey
- Bramston, Thomas William (1796-1871) MP
- Breese, Charles Edward (1867-1932) MP, solicitor and antiquary
- Breese, Edward (1835-1881), solicitor and antiquary
- Brereton, Andrew Jones (1827-1885), Welsh brewer and author as Andreas o Fon
- Brett, Reginald Baliol (1852-1930) 2nd Viscount Esher
- Bridges, Gertrude Myfanwy (1908-1987), daughter of Reverend David Davies
- Bright, Allan Heywood (1862-1941), Liberal politician
- Brigstocke, George Robert (1874-1956) antiquary
- Briscoe, Thomas (1811-1895) Chancellor of Bangor Cathedral Biblical Scholar
- Broadfoot, Archibald (1843-1926) Colonel
- Brooke, Henry (1903-1984) Baron Brooke of Cumnor, Conservative politician
- Brooke, Stopford Augustus (1832-1915), writer and preacher
- Brookes, Beata (c1930-2015), Conservative MEP Abergele, Denbighshire;Bangor, Caernarfonshire;Brussels, Belgium;Rhuddlan, Flintshire
- Brougham, Henry Peter (1778-1868) 1st Baron Brougham and Vaux, statesman, Lord Chancellor
- Brown, Sir George (1790-1865) Knight, General
- Brown, George Alfred (1914-1985) Baron George Brown, politician
- Brown, Stanley Morse (fl 1936), Principal of the School of Arts and Crafts, Carmarthen
- Browne, Sir Samuel James (1824-1901) Knight General
- Bruce, Henry Austin (1815-1895) 1st Baron Aberdare, statesman
- Brunner, Sir John Tomlinson (1842-1919) 1st Baronet Industrialist and MP
- Brydges, Sir Harford Jones (1764-1847) Knight, diplomat and author
- Buckland, William (1784-1856), Dean of Westminster, geologist
- Bulkeley, Thomas James Warren- (1752-1822) 7th Viscount Bulkeley
- Bullock, Sir Christopher Llewellyn (1891-1972) Knight, civil servant
- Bullock-Davies, Constance (1900-1989), Classical and Linguistic Scholar
- Bulwer-Lytton, Edward George Earle Lytton (1803-1873) 1st Baron Lytton, statesman and novelist
- Bulwer-Lytton, Edward Robert (1831-1891) 1st Earl of Lytton, Viceroy of India
- Bunsen, Christian Karl Josias von (1791-1860) Baron von Bunsen, German diplomat and scholar
- Burgess, Thomas (1756-1837) Bishop of Salisbury
- Burke, Sir Henry Farnham (1859-1930) Knight, herald and genealogist
- Burne-Jones, Sir Edward Coley (1833-1898) 1st Baronet, painter
- Burns, Cecil Delisle (1879-1942) Lecturer and Writer
- Burton, Philip Henry (1904-1995), teacher
- Burton, Richard (1925-1984), stage and film actor
- Butler, Lady Eleanor (c 1739-1829) One of the Ladies of Llangollen
- Butler, Richard Austen (1902-1982) Baron Butler of Saffron Walden, politician
- Byres, James (1734-1817), architect and virtuoso antiquary
- Cadbury, Henry Tylor (1882-1952) businessman
- Callaghan, Leonard James (1912-2005) Baron Callaghan, statesman
- Calvert, Frederick (1806-1891) MP Barrister
- Campagnac, Ernest Trafford (1873-1952) Professor of Education
- Campbell, Frederick Archibald Vaughan (1847-1911) 3rd Earl Cawdor
- Campbell, Ian (b 1936), peace activist and political campaigner
- Campbell, James Duncan (1833-1907) Commissioner of Chinese Maritime Customs
- Campbell, John Frederick Vaughan (1817-1898) 2nd Earl Cawdor
- Campbell, Thalia D (b 1937), peace activist
- Campbell-Bannerman, Sir Henry (1836-1908) Knight, statesman
- Cana, Proinsias Mac (1926-2004), Celtic scholar Belfast, County Antrim;Dublin, County Dublin;Aberystwyth, Cardiganshire
- Canning, Joseph Herbert (fl 1893-1930), local historian Monmouthshire
- Caradog, Caradog Pritchard (1904-1980), novelist and journalist
- Carey, William (1769-1834) Bishop of St Asaph
- Carey-Evans, Lady Olwen (1892-1990), daughter of David Lloyd George
- Carnac, John (1716-1800) Brigadier General Politician
- Carter, Gertrude Maud (1893-1974), dramatist and novelist
- Carter, Lady Helen Violet Bonham- (1887-1969) Baroness Asquith of Yarnbury, Liberal politician
- Cartwright, James Joel (1842-1903) Archivist and Antiquary
- Case, Robert Hope (1857-1944) Professor of English Literature
- Casson, Sir Hugh Maxwell (1910-1999), Knight, architect
- Catchpool, Egerton St John Pettifor (1890-1971) Public Servant
- Cecil, Brownlow (1795-1867) 2nd Marquess of Exeter
- Cennick, John (1718-1755) Methodist and Moravian Minister
- Chaloner, Jacob (1585-1631) heraldic painter
- Chamberlain, Brenda (1912-1971) Artist and Writer
- Chapman, Sir Edward Francis (1840-1926) Knight General
- Chappell, Edgar Leyshon (1879-1949) social reformer
- Charles, David (1762-1834) Calvinistic Methodist Minister, hymn writer
- Charles, David (1803-1880) Calvinistic Methodist Minister, hymn writer
- Charles, David (1812-1878) Calvinistic Methodist Principal of Trevecka College
- Charles, Thomas (1755-1814) Calvinistic Methodist Minister Educationist
- Charles, Thomas (1811-1873) Surgeon
- Charoux, Siegfried Joseph (1896-1967), sculptor
- Cholmondeley, Francis (1636-1713) MP
- Chotzen, Theodor Max (1901-1945) Celtic Scholar
- Chudleigh, Elizabeth (c 1720-1788), called herself "Duchess of Kingston"
- Churchill, Sir Winston Leonard Spencer (1874-1965) Knight, prime minister and historian
- Churchill, Winston Spencer (1940-2010), Conservative MP
- Clark, George (1777-1848) Chaplain of the Royal Military Asylum
- Clark, George Thomas (1809-1898), engineer, antiquary and archaeologist
- Clark, Samuel (1626-1701) Dissenting Clergyman Biblical Scholar
- Clarke, Gillian (b 1937) Poet
- Clarke, John Joseph (1879-1969) lecturer in law of housing and planning
- Clarkson, Thomas (1760-1846), philanthropist
- Clayton, Sir Robert (1629-1707) Knight, MP, scrivener, Lord Mayor of London
- Cleary, John Martin (1917-1997) schoolmaster and historian
- Clement, James (1862-1943) Poet and Dramatist Called Alarch Ogwy
- Clement, John Handel (b 1920) Civil Servant
- Clinton, Henry Fynes (1781-1852), MP, historian
- Clive, Edward (1754-1839) 1st Earl of Powis, Governor of Madras
- Clive, Henrietta Antonia (1758-1830) Countess of Powis
- Clive, Robert (1725-1774) 1st Baron Clive, Governor of Bengal
- Cobbett, William (1763-1835), MP, author, journalist and publisher
- Cobden, Richard (1804-1865), statesman and businessman
- Coburn, Alvin Langdon (1882-1966), American photographer
- Cocks, Edward Charles (1786-1812) Lieutenant Colonel MP for Reigate
- Coghill, Kendal Josiah William (1832-1919) Colonel
- Colby, Laurence Robert Vaughan (1880-1914) Major Grenadier Guards
- Cole, Sir Christopher (1770-1837) Knight, Captain RN
- Coleman, Donald Richard (1925-1991) Labour MP
- Coleridge, Sir John Duke (1820-1894) 1st Baron Coleridge, Lord Chief Justice
- Colley, Robert (fl 2000-2007), lepidopterist Llanrhystud, Cardiganshire
- Condry, William Martin (1918-1998), naturalist and writer
- Conington, John (1825-1869), classical scholar
- Conway, William Martin (1856-1937) Baron Conway of Allington, art critic
- Cooke, Bryan (1756-1821) MP
- Cooper, Anthony Lionel Ashley (1813-1836) son of 6th Earl of Shaftesbury
- Cooper, William (1910-2002), novelist
- Copleston, Edward (1776-1849) Bishop of Llandaff Provost of Oriel College Oxford
- Copleston, John Henry (1841-1918) Rector of Offwell Offwell, Devon
- Corbett, John (1817-1901) MP
- Cormack, Sir Patrick Thomas (b 1939), Knight Politician
- Cornewall, Sir George (1774-1835) 3rd Baronet
- Cornewall, Sir George Henry (1833-1908) 5th Baronet Rector of Moccas Herefordshire
- Cotes, John (1799-1874) MP
- Cotes, Thomas (d 1767) Vice Admiral
- Courthope, William (1808-1866), Somerset herald
- Coutts, Thomas (1735-1822), banker
- Cox, David (1783-1859) Landscape Painter
- Cox, Idris (1899-1989) Communist Party Activist in South Wales
- Crawford, Sir Frederick (1906-1978) Knight Colonial Governor
- Crawshay, George (1821-1896), public works contractor and Radical
- Crawshay, William (1788-1867), ironmaster
- Crawshay-Williams, Leonard Eliot (1879-1962), MP, writer
- Cressett, James (d 1710) Diplomat
- Crichton-Stuart, John (1793-1848) 2nd Marquess of Bute
- Cripps, Sir Richard Stafford (1889-1952), Knight, politician and lawyer
- Croft, Herbert (1603-1691) Bishop of Hereford
- Crowe, William (1745-1829) poet and clergyman
- Crozier, William Percival (1879-1944), journalist
- Cullen, William (1710-1790), physician
- Cullum, Sir Thomas Gery (1741-1831) 7th Baronet Herald and Botanist
- Cumberland, George (fl 1785-1836), antiquary
- Curtis, Lionel George (1872-1955), colonial historian
- Curtis, Tony (b 1946) Poet
- Cutting, Vivien (fl 1930-1980) poet
- Dafis, Cynog Glyndwr (b 1938) Plaid Cymru MP
- Dale, Sir Alfred William Winterslow (1855-1921) Knight Principal of University of Liverpool
- Dalton, Edward Hugh John Neale (1887-1962) Baron Dalton, statesman
- Daniel, David Robert (1859-1931) Local Politician and Civil Servant
- Daniel, Goronwy Hopkin (1914-2003), Knight Civil Servant
- Darlington, Thomas (1864-1908) educationalist
- David, Wayne (b 1957) MEP
- Davies, Sir Alfred Thomas (1861-1949) Knight Civil Servant
- Davies, Alun Talfan (b 1913) Judge
- Davies, Aneirin Talfan (1909-1980) Welsh critic, broadcaster and poet as Aneirin ap Talfan
- Davies, Benjamin (1863-1957) Scientist
- Davies, Cassie (1898-1988), chief inspector of primary schools in Wales
- Davies, Charles (1849-1927) Baptist Minister
- Davies, Charles (1901-1953) Lecturer in English UCNW Bangor
- Davies, Daniel (1840-1916) of Ton Colliery Cashier and Author
- Davies, David (1814-1891) Calvinistic Methodist Preacher
- Davies, David (1818-1890) Industrialist and MP
- Davies, David (1880-1944) 1st Baron Davies
- Davies, David Charles (1826-1891) Calvinistic Methodist Minister Theologian
- Davies, David Charles (1901-1953) English Scholar
- Davies, David John Denzil (b 1938) Labour MP
- Davies, Edward (1756-1831) Rector of Bishopston, author and antiquary
- Davies, Edward Clement (1884-1962) Politician
- Davies, Edward Owen (1864-1936) Calvinistic Methodist Minister Theologian
- Davies, Edward Tegla (1880-1967) Writer
- Davies, Eiluned (1913-1999), composer and accompanist
- Davies, Ellis Thomas (1822-1895), Welsh independent minister and author
- Davies, Ellis William (1871-1939) Liberal MP
- Davies, Elwyn (1908-1986) Historical Geographer Topographer Civil Servant
- Davies, Elwyn (1912-1994), Welsh poet and teacher
- Davies, Evan (1842-1919) Calvinistic Methodist Minister, writer
- Davies, George Maitland Lloyd (1880-1949), Christian pacifist
- Davies, Griffith (1788-1855), actuary
- Davies, Gwilym (1879-1955) Director of League of Nations Union
- Davies, Henry (? 1696-1766) Independent Minister
- Davies, Sir Henry Walford (1869-1941), Knight, composer, organist and broadcaster
- Davies, Howell (c1716-1770), Methodist minister
- Davies, Hubert (1893-1965), composer
- Davies, Hugh (1739-1821) Botanist
- Davies, Hugh Tudwal (1847-1915) Farmer and Poet as Tudwal
- Davies, Idris (1905-1953) Poet
- Davies, Ithel (1894-1989) Barrister and Political Activist
- Davies, Ivan Thomas (fl 1869-1929) Congregational Minister
- Davies, James Conway (1891-1971) Historian and Palaeographer
- Davies, Jenkin Alban (1901-1968) Member of the Independent Television Authority
- Davies, John (?1570-1644), lexicographer
- Davies, John (1772-1855), Methodist missionary
- Davies, John (1803-1854) Welsh Independent Minister, author
- Davies, John (1804-1884) Welsh Independent Minister, translator and commentator as Sion Gymro
- Davies, John (1843-1917), Calvinistic Methodist minister and antiquary
- Davies, John (fl 1960-1994), historian
- Davies, John Daniel (1874-1948), editor of Y Rhedegydd
- Davies, John Evan (1850-1929), Calvinistic Methodist minister and poet
- Davies, John Glyn (1870-1953) poet, Professor in Welsh
- Davies, John Humphreys (1871-1926), bibliographer and educationist
- Davies, John Ossian (1851-1916), Congregational minister and author
- Davies, John Paternus Gildas (fl 1840-1874), Roman Catholic priest
- Davies, Jonathan (1857-1933), slate trader
- Davies, Jonathan Ceredig (1859-1932) Traveller and Author
- Davies, Joseph (d 1931) Deacon at Libanus Baptist Church Treherbert
- Davies, Sir Joseph (1866-1954) Knight MP
- Davies, Joseph Edward (b 1876) American Lawyer and Diplomat
- Davies, Margaret (c 1700-1785) Antiquary Transcriber of Welsh MSS
- Davies, Margaret Frances (1914-1982), geographer and historian
- Davies, Mary (1855-1930) Soprano and President of the Welsh Folk Song Society
- Davies, Matthew Lewis Vaughan- (1840-1935) Baron Ystwyth
- Davies, Morgan (1854-1920) physician
- Davies, Morris (1796-1876) Author Hymnologist and Musician
- Davies, O Cynric Mytton- (d 1995) Journalist and Writer
- Davies, Olwen (1924-2011), opera singer and political activist Italy;Aberystwyth, Cardiganshire;Greenham, Berkshire
- Davies, Owen (1840-1929) Welsh Baptist Minister, biographer
- Davies, Pennar (1911-1996), Poet, novelist and academic
- Davies, Rachel Mary (1911-1996), member of Plaid Cymru
- Davies, Ray (b1930), councillor and political activist Cardiff, Glamorgan;Llanbradach, Glamorgan;Caerphilly, Glamorgan;Bedwas, Monmouthshire
- Davies, Sir Rees (1938-2005), Professor of medieval history Llandderfel, Merionethshire;Bala, Merionethshire;London;Swansea, Glamorgan;Aberystwyth, Cardiganshire;Oxford, Oxfordshire
- Davies, Rhys (1903-1978), Welsh writer
- Davies, Richard (fl 1816-1873) Welsh Baptist Minister as Yr Hen Belican
- Davies, Richard (1818-1896) Businessman MP
- Davies, Richard (1830-1904) critic and poet as Tafolog
- Davies, Richard Humphrey (1872-1970) Private Secretary to WE Gladstone
- Davies, Ronald (b 1946) Politician
- Davies, Thomas (1820-1873), Independent minister Llandilo, Carmarthenshire
- Davies, Thomas George (1900-1977) Principal of Presbyterian College Carmarthen
- Davies, Thomas Huws (1882-1940) Secretary to Commissioners of Church Temporalities in Wales
- Davies, Walter (1761-1849) Welsh clergyman, antiquary and poet as Gwallter Mechain
- Davies, William (1756-1823) classical scholar and Welsh historian
- Davies, William (1805-1859) Independent Minister and Schoolmaster
- Davies, William (1820-1875) Wesleyan Minister, author
- Davies, Sir William (1821-1895) Knight MP for Pembrokeshire
- Davies, Sir William (1863-1935) journalist and editor
- Davies, William Evans (1861-1945), Baptist minister
- Davies, William Henry (1871-1940), poet and author
- Davies, Sir William Llewelyn (1887-1952) Librarian
- Davies, William Watkin (1895-1973) Barrister Historian Political Scientist
- Davies, Wynford (1914-1987) Chief Education Officer for Pembrokeshire
- Davis, David (1778-1846), Unitarian minister and schoolmaster
- Davis, Timothy (1779-1860), Unitarian minister and schoolmaster
- Dawson, Bertrand Edward (1864-1945) 1st Viscount Dawson, physician
- Delany, Mary (1700-1788), artist and writer
- Denison, Edward (1801-1854) Bishop of Salisbury
- Derfel, Robert Jones (1824-1905) Welsh Radical Author and Poet
- Devereux, Robert (1843-1930) 16th Viscount Hereford
- Digby, Sir Kenelm (1603-1665) Knight Author Naval Commander and Diplomat
- Dilke, Sir Charles Wentworth (1843-1911) Knight, 2nd Baronet, politician and author
- Dillwyn, Lewis Llewellyn (1814-1892) MP
- Dillwyn, Lewis Weston (1778-1855), naturalist, MP, pottery manufacturer
- Dillwyn, William (1743-1824) Quaker Merchant Pennsylvania;Walthamstow, Essex
- Disraeli, Benjamin (1804-1881) Earl of Beaconsfield, statesman
- Ditmas, Edith Margaret Robertson (d 1986) Antiquary and Director of the Association of Libraries and Information Bureaux
- Diverres, Paul (1880-1946), philologist
- Dixon, Sir Manley (d 1837) Knight Admiral
- Dodderidge, Sir John (1555-1628) judge historian
- Doddridge, Sir John (1555-1628) Knight Judge MP Historian
- Donnelly, Desmond Louis (1920-1974) MP
- Doubleday, Herbert Arthur (1867-1941), publisher, historian and genealogist
- Dovaston, John Freeman Milward (1782-1854) Writer
- Doyle, Sir Francis Hastings Charles (1810-1888) 2nd Baronet, poet
- Druce, George Claridge (1854-1932), botanist
- Drummond, Robert Hay (1711-1776) Archbishop of York
- Duff, Sir Charles Patrick (1889-1972) Knight Public Servant
- Duff, Sir James (d 1815) 1st Baronet Consul at Cadiz
- Duncan, Jonathan (1756-1811) Governor of Bombay
- Dundas, Henry (1742-1811) 1st Viscount Melville, statesman
- Dunstan, Bernard (b 1920) Painter
- Dwnn, Lewys (c 1550-c 1616) Welsh genealogist and poet
- Dyer, George (1755-1841) Poet
- Dyer, John (? 1699-1757) Welsh poet and painter
- Dyment, Clifford (1914-1971), author
- Eady, Sir Crawfurd Wilfred Griffin (1890-1962), Knight, civil servant
- Eames, Marion (1921-2007), novelist Birkenhead, Cheshire;Dolgellau, Merionethshire
- Earwaker, John Parsons (1847-1895) Cheshire Antiquary
- Ebsworth, Joseph (1788-1868) dramatist and musician
- Eden, Robert Anthony (1897-1977) 1st Earl of Avon, prime minister
- Edmund-Davies, Herbert Edmund (1906-1992) Baron Edmund Davies of Aberpennar, judge
- Edward, John Wynn (d 1614) Sheriff of Anglesey
- Edwardes, Sir Herbert Benjamin (1819-1868) Knight Indian Administrator
- Edwardes, Hugh (1873-1938) 6th Baron Kensington Colonel
- Edwardes, William (1835-1896) 4th Baron Kensington, politician
- Edwards, Alfred George (1848-1937), Archbishop of Wales
- Edwards, D P Garbett- (fl 1957-1987), Director of Finance of the Development Board for Rural Wales
- Edwards, Edward (1865-1933), historian
- Edwards, Ellis (1844-1915) Principal of Bala Theological College
- Edwards, Sir Francis (1852-1927) 1st Baronet Radical MP
- Edwards, Gwilym Arthur (1881-1963) Theologian
- Edwards, Henry William John (b 1910), author
- Edwards, Huw Thomas (1892-1970) Trade Unionist and Politician
- Edwards, Hywel Teifi (b 1934) Critic and Literary Historian
- Edwards, Sir Ifan Ab Owen (1895-1970) Knight Patriot and Founder of Urdd Gobaith Cymru
- Edwards, Jack (1853-1942), bookseller and musician
- Edwards, John (1813-1906) editor and poet as Meiriadog
- Edwards, John (1905-1966) Recording Company Founder
- Edwards, Sir John Goronwy (1891-1976) Knight, historian
- Edwards, John Hugh (1869-1945) Editor, biographer and MP
- Edwards, John Kelt (1875-1934) artist
- Edwards, Lewis (1809-1887) Principal of Bala Theological College
- Edwards, Mary Garbett (1893-1986) Public Servant and Liberal Party Agent
- Edwards, Sir Owen Morgan (1858-1920), Knight, editor, writer and educationalist
- Edwards, Roger (1811-1886) Calvinistic Methodist Minister, radical journalist
- Edwards, Roger Nicholas (b 1934) Baron Crickhowell of Pont Esgob, politician
- Edwards, Thomas (? 1869-1925) Musician and Antiquary
- Edwards, Thomas Charles (1837-1900) Principal of University College of Wales
- Elfyn Llwyd, Elfyn Llwyd (b1951), Welsh barrister and MP Betws-y-coed, Caernarfonshire
- Elfyn, Menna (b1952), Welsh poet, playwright, columnist, and editor Llandysul, Ceredigion
- Elias, John (1774-1841) Cavinistic Methodist Minister and preacher
- Eliot, Thomas Stearns (1888-1965) poet
- Elis, Islwyn Ffowc (1924-2004), novelist
- Elis, Meg (d 1950), writer
- Ellis, David (1736-1795), Vicar of Criccieth, poet and translator
- Ellis, Griffith (1844-1913), Calvinistic Methodist minister and biographer
- Ellis, Lionel Frederic (1885-1970), Major and military historian
- Ellis, Meg (b1951), politician Aberystwyth, Cardiganshire
- Ellis, Richard (1869-1928), librarian, bibliographer and antiquary
- Ellis, Richard Jenkin (1888-1976) vice-chairman of Cardiganshire County Council
- Ellis, Robert (1808-1881), Calvinistic Methodist minister and antiquary
- Ellis, Robert (1812-1875), Baptist minister, antiquary and poet
- Ellis, Robert Thomas (1924-2010), MP for Wrexham
- Ellis, Thomas Edward (1859-1899) Liberal MP
- Ellis, Thomas Iorwerth (1899-1970), educationist
- Ellis-Griffith, Sir Ellis Jones (1860-1926) 1st Baronet, barrister and MP
- Elmsley, Peter (1773-1825), classical scholar
- Elsynge, Henry (1577-1635) clerk of the parliaments
- Elsynge, Henry (1606-1656), Clerk of the House of Commons
- Elton, Oliver (1861-1945), scholar and critic
- Elwyn, John (1916-1997) Painter
- Elwyn-Jones, Frederick (1909-1989) Baron Elwyn Jones, Lord Chancellor Llanelli, Carmarthenshire;Aberystwyth, Cardiganshire;Cambridge, Cambridgeshire;Germany;Merthyr Tydfil, Glamorgan;London
- Elwyn-Jones, Walter Idris (1900-1971), Welsh chemist and international rugby union player Llanelli, Carmarthenshire;Llandaff, Glamorgan
- Emyr, John (fl 1950-2011) Welsh author and poet
- Erskine, Ann (d 1829), Leader of Countess of Huntingdons Connexion
- Eure, Ralph (1558-1617) 3rd Baron Eure
- Evans, Albert Owen (1864-1937), Archdeacon of Bangor and historian
- Evans, Alcwyn Caryni (1828-1902), antiquary
- Evans, Arthur Wade Wade- (1875-1964), rector and historian Wrabness, Essex
- Evans, Benjamin Ifor (1899-1982) Baron Evans of Hungershall
- Evans, Beriah Gwynfe (1848-1927), journalist and playwright
- Evans, Caradoc (1878-1945), author and playwright
- Evans, Christmas (1766-1838), Baptist minister and preacher
- Evans, Clifford (1912-1985), actor and director
- Evans, Daniel Silvan (1818-1903) Vicar of Llanwrin, lexicographer and poet
- Evans, David (1860-1950), Unitarian minister and schoolmaster
- Evans, David (1874-1948), music composer
- Evans, David (1875-1951), industrial journalist
- Evans, David (1878-1945), author
- Evans, David Cledlyn (1858-1940), schoolmaster, geologist and antiquary
- Evans, David Emlyn (1843-1913), Welsh music critic and composer
- Evans, Sir David Emrys (1891-1966) Vice Chancellor of the University of Wales
- Evans, David Lewis (1813-1902), Unitarian minister and tutor
- Evans, David Moule- (1905-1988), composer and musicologist
- Evans, David Owen (1876-1945) MP for Cardiganshire
- Evans, Ellis (1786-1864), Baptist minister, author and historian
- Evans, Ellis Humphrey (1887-1917), Welsh poet
- Evans, Emlyn (1923-2014), publisher, managing director of Llyfrau’r Dryw, Llandybïe and Gwasg Gee, Dinbych
- Evans, Evan (1731-1789), Welsh poet and antiquary
- Evans, Evan Price (1880-1959), founder member of British Ecological Society
- Evans, Sir Evan Vincent (1851-1934), Knight, journalist
- Evans, George Ewart (1909-1988), author, lecturer and broadcaster
- Evans, George Eyre (1857-1939), Unitarian minister and antiquary
- Evans, Griffith (1835-1935), veterinary surgeon and microscopist
- Evans, Griffith Ivor (1889-1966) Welsh Nationalist
- Evans, Henry Tobit (1844-1908), schoolmaster, journalist and politician
- Evans, Horatio James (1859-1932) Brigadier General
- Evans, Hugh (1767-? 1841), Welsh poet
- Evans, Hugh (1866-1934), Wesleyan minister and poet
- Evans, Ifor Leslie (1897-1952), principal, University College of Wales, Aberystwyth
- Evans, Ioan Lyonel (b 1927) Labour MP
- Evans, John (d 1822), vicar of Newport, Monmouthshire
- Evans, John Dafydd (1900-c 1984), artist and book illustrator
- Evans, John Gwenogvryn (1852-1930), historian and palaeographer
- Evans, John Thomas (1869-1941) Rector of Stow-on-the-Wold, antiquary Stow-on-the-Wold, Gloucestershire
- Evans, Leslie Wynne (1911-1985), educationalist
- Evans, Marguerite Florence Laura (1888-1964), romantic novelist
- Evans, Meredydd (1919-2015), musicologist, performer, language campaigner
- Evans, Olwen Caradoc (1918-1998), author and map dealer
- Evans, Owen Ellis (1900-2000), minister of the church and Biblical scholar
- Evans, Phoebe Joyce (b 1890), missionary
- Evans, Rhys (fl 1980-2019), broadcaster and producer
- Evans, Richard Gwynfor (1912-2005), Plaid Cymru MP and historian
- Evans, Samuel James (1870-1938), educationalist and author
- Evans, Sir Samuel Thomas (1859-1918) Knight, politician and judge
- Evans, Simon (1824-1885), Congregational minister
- Evans, Stephen (1818-1905), educationist and promoter of Welsh culture
- Evans, Thomas (1764-1833), Unitarian Minister, political reformer and poet
- Evans, Thomas Christopher (1846-1918), Cadrawd antiquary
- Evans, Thomas E (fl 1866), Congregational minister
- Evans, Thomas Henry (fl 1891-1914), mining engineer
- Evans, Thomas John (1863-1932) Welsh journalist and antiquary
- Evans, William (1795-1891), Calvinistic Methodist minister
- Evans, William (1882-1968), Welsh Congregational minister, writer and poet
- Evans, William (1883-1968) poet as Wil Ifan
- Ewing, Winifred Margaret (b 1929), Scottish Nationalist MP and MEP
- Fairbank, Alfred John (1895-1982) Calligrapher
- Falkener, Edward (1814-1896), architect and archaeologist
- Farrer, Thomas Henry (1819-1899) 1st Baron Farrer, civil servant
- Fazakerley, John Nicholas (1787-1852) Politician
- Fenton, Richard (1746-1821) Poet and Antiquary
- Field, Guy Cromwell (1887-1955) Professor of Philosophy
- Finch, Charles Griffith Wynne- (1815-1874) MP
- Finch, John Charles Wynne (1891-1982) Lieutenant Colonel, Coldstream Guards
- Finch, Peter (b1947), poet and author
- Finch, Sir William Heneage Wynne (1893-1961) Colonel, Scots Guards
- Fisher, Herbert Albert Laurens (1865-1940), historian and statesman
- Fisher, John (1862-1930) Chancellor of St Asaph Antiquary
- Fitzgibbon, Constantine (1919-1983) Author
- Fitzroy, Lord Charles (1791-1865) Politician
- Fitzwilliam, William Wentworth- (1748-1833) 4th Earl Fitzwilliam, statesman
- Fitzwilliams, Gerard Hall Lloyd (b 1882) physician
- Fleetwood, William (1656-1723) Bishop of Ely
- Fleure, Herbert John (1877-1969), zoologist and geographer
- Flower, Benjamin (1755-1829) Political Writer
- Floyd, William (c 1810-1898) Antiquary
- Flynn, Paul Philip (b 1935) Labour MP
- Foot, Michael (1913-2010), politician and author
- Foster, Sir Idris Llewelyn (1911-1984), Knight, Celtic scholar
- Foulkes, Isaac (1836-1904) Newspaper Proprietor and Publisher
- Fowke, Joseph (1716-1800) Indian Administrator and Diamond Merchant
- Fox, Sir Cyril Frederick (1882-1967), Knight, archaeologist
- Fox, Henry Elliott (1841-1926) Secretary of Church Missionary Society
- Francis, Alfred Edwin (1909-1985) theatre and opera administrator
- Francis, George Grant (1814-1882), antiquary Swansea, Glamorgan
- Fraser, Dorothy May (1902-1980), Travel Writer
- Fraser, John (1882-1945), Celtic scholar
- Fraser, Lovat (1871-1926) Editor of the Times of India Writer and Traveller
- Freeman-Mitford, John (1748-1830) 1st Baron Redesdale, Lord Chancellor
- Fremantle, Sir Arthur James Lyon (1835-1901) Knight General Colonial Governor
- Fremantle, Sir William Henry (1766-1850) Knight Politician
- Frost, John (1784-1877) Chartist
- Froude, James Anthony (1818-1894), historian
- Fry, Sir Geoffrey Storrs (1888-1960) 1st Baronet, Private Secretary to Stanley Baldwin
- Fryde, Edmund Boleslaw (1923-1999), Professor of History
- Fyfe, David Patrick Maxwell- (1900-1967) Earl of Kilmuir, statesman
- Gabb, John Baker (1827-1893) Privy Chamberlain to Leo XIII
- Gadbury, John (1627-1704) Astrologer
- Gaitskell, Hugh Todd Naylor (1906-1963) Statesman
- Gale, Sir Humfrey (1890-1971) Knight Lieutenant General
- Gallie, Menna Patricia (1920-1990), author
- Gambold, John (1711-1771) Bishop of the Unitas Fratrum
- Garlick, Raymond (b 1926) Author Critic and Welsh Nationalist
- Garnett, Edward (1868-1937), writer
- Garnett, James Clerk Maxwell (1880-1958) Secretary of League of Nations Union
- Garrick, David (1717-1779), actor
- Gauden, John (1605-1662) Bishop of Worcester
- Gee, Howel (d 1903) Journalist
- Gee, Thomas (1815-1898) Calvinistic Methodist Minister Journalist and Politician
- Geikie, Sir Archibald (1835-1924) Knight, geologist
- George, Alfred John (1879-1956) Welsh Baptist Minister
- George, David Lloyd (1863-1945) 1st Earl Lloyd George of Dwyfor, statesman
- George, Frances Louise Lloyd (1888-1972), personal secretary, 2nd wife of 1st Earl Lloyd George
- George, Gwilym Lloyd (1894-1967) 1st Viscount Tenby
- George, Henry (d 1920) Music Composer
- George, Dame Margaret Lloyd (1864-1941), 1st wife of 1st Earl Lloyd George
- George, Lady Megan Lloyd (1902-1966), politician
- George, Percy (1896-1985) Economist
- George, Richard Lloyd (1889-1968) 2nd Earl Lloyd George of Dwyfor
- George, William (1865-1967), solicitor
- George, William (fl 1895-1920) Composer
- George, William Richard Philip (1912-2006), solicitor, writer and Archdruid of Wales
- Gerard, Charles (c 1618-1694) 1st Earl of Macclesfield, Lieutenant General
- Gibson, Edmund (1669-1748) Bishop of London, antiquary
- Gibson, John (1790-1866), sculptor
- Gibson, Sir John (1841-1915), Knight and journalist
- Gielgud, Sir Arthur John (1904-2000) Knight, actor and theatre director
- Giles, William (1872-1939) Art Historian
- Gillie, Francis Blaise (1908-1981) Civil Servant and Town Planner
- Gladstone, William Ewart (1809-1898), statesman
- Gladstone, William Henry (1840-1891), MP and mountaineer
- Glover, Robert (1544-1588) Somerset Herald
- Glynne, Sir John (d 1777) 6th Baronet
- Glynne, Mary (d 1854) wife of 8th baronet
- Glynne, Sir Stephen Richard (1780-1815) 8th Baronet
- Glynne, Sir Stephen Richard (1807-1874) 9th Baronet MP Antiquary
- Godolphin, Francis (c 1707-1785) 2nd Baron Godolphin of Helston
- Godolphin, John (1617-1687) Lawyer
- Goodhart-Rendel, Harry Stuart (1887-1959), architect Hatchlands, Surrey
- Goodwin, Geraint (1903-1941) Novelist
- Gordon, Alexander (1841-1931), Unitarian minister and historian
- Gordon, Caroline Duff- (1789-1875), wife of Sir William Duff-Gordon
- Gough, Sir Hugh Henry (1833-1909) Knight General
- Gough, Richard (1735-1809), antiquary
- Gould, Sabine Baring- (1834-1924), rector of Lew Trenchard, antiquary, folklorist and hymn writer
- Gower, John (d ? 1914) Rector of Trefriw Caernarvonshire
- Gower, Sir Robert Patrick Malcolm (1887-1964), Knight, civil servant and Conservative publicity officer
- Gowers, Sir Ernest Arthur (1880-1966) Knight Public Servant
- Grace, Percy (d 1859) Vice Admiral
- Graham, Sir Bellingham Reginald (1789-1866) 7th baronet
- Graham, Sir James Robert George (1792-1861), 2nd Baronet, statesman
- Grant, Sir Robert (1779-1838) Knight MP Governor of Bombay
- Grant-Duff, Sir Mountstuart Elphinstone (1829-1906), Knight statesman and author
- Graves, Alfred Perceval (1846-1931) Author and Educationist
- Graves, Robert Ranke (1895-1985), poet and author
- Green, Charles Alfred Howell (1864-1944) Archbishop of Wales
- Green, Eileen (d ? 1990) Local Historian
- Green, Francis (1854-1942) Antiquary and Lawyer
- Greene, Graham (1904-1991), novelist
- Greg, William Rathbone (1809-1881), essayist
- Grenfell, David Rhys (1881-1968) MP
- Grenfell, Joyce Irene (1910-1979), actress and entertainer
- Grenville, Anna Elizabeth Temple-Nugent-Brydges-Chandos- (1779-1836) Duchess of Buckingham, wife of 1st Duke of Buckingham
- Grenville, Richard Plantagenet Temple-Nugent-Brydges-Chandos- (1797-1861) 2nd Duke of Buckingham and Chandos
- Grenville, Richard Temple-Nugent-Brydges-Chandos- (1776-1839) 1st Duke of Buckingham and Chandos
- Grenville, Thomas (1755-1846) Statesman
- Grenville, William Wyndham (1759-1834) Baron Grenville, statesman
- Gresham, Colin Alastair (1913-1989) Archaeologist and Historian
- Greville, Charles Francis (1749-1809), MP, dilettante
- Greville, Robert Fulke (1751-1824) MP Courtier
- Grey, Charles (1804-1870) General Private Secretary to Prince Albert and Queen Victoria
- Grey, Henry George (1802-1894) 3rd Earl Grey, statesman
- Grice, Frederick (1910-1983) Author
- Griffith, David Robert (1915-1990) Lecturer in Biblical Studies and Hymnist
- Griffith, Edward (1832-1918), antiquary
- Griffith, Ellis (fl 1529-1550), chronicler
- Griffith, Huw Wynne (1915-1993) Calvinistic Methodist clergyman
- Griffith, John (1713-1776) Quaker of Radnorshire and Pennysylvania
- Griffith, John (1756-1830) Receiver General for North Wales and Chester
- Griffith, John Edwards (1843-1933) Antiquary and Naturalist
- Griffith, John Owen (1828-1881), Welsh critic and poet
- Griffith, John Thomas (1845-1917) Baptist Minister and Historian
- Griffith, Kenneth (b 1921) Actor Writer and Documentary Film Maker
- Griffith, Llewelyn Wyn (1890-1977) Public Servant Novelist Poet and Translator
- Griffith, Moses (1893-1973) Agricultural Pioneer
- Griffith, Richard (1861-1947) Poet and Local Historian
- Griffith, Ywain Goronwy ap (1882-1963) Architect
- Griffiths, Ann (1780-1805), Welsh Methodist hymn-writer
- Griffiths, David Rees (1882-1953), writer
- Griffiths, Evan (1795-1873), Welsh Independent minister, printer and author
- Griffiths, Gwyn (fl 1975-1988) Welsh Liberal Party Leader
- Griffiths, Henry (1811-1891), philosopher
- Griffiths, James (1782-1858), Independent minister
- Griffiths, James (1890-1975), politician
- Griffiths, John (1837-1918), artist and principal of Bombay College of Arts
- Griffiths, John Gwyn (1911-2004), poet, critic and Classical scholar
- Griffiths, Peter Hughes (1871-1937), Calvinistic Methodist minister
- Griffiths, William (1788-1861), Calvinistic Methodist minister
- Grigg, Sir Percy James (1890-1964) Knight Civil Servant
- Grimond, Joseph (1913-1993) Baron Grimond, politician
- Grist, Ian (1938-2002), MP
- Gronovius, Lorenz Theodor (c 1730-1778) Ichthyologist
- Grosart, Alexander Balloch (1827-1899), author and editor
- Grosvenor, Eleanor (1770-1846), wife of 1st Marquess of Westminster
- Grosvenor, Thomas (1764-1851) Field Marshal
- Grote, George (1794-1871), MP and historian
- Grote, Harriet (1792-1878), biographer
- Groves, Sir Charles (1915-1992) Conductor
- Gruffydd, Elis (fl 1490-1552), copyist, translator and chronicler
- Gruffydd, Owen (c1643-1730), weaver, poet and antiquary
- Gruffydd, Robert Geraint (1928-2015), Welsh scholar and critic Bangor, Caernarfonshire;Tal-y-bont, Merionethshire;Oxford, Oxfordshire;Aberystwyth, Cardiganshire
- Gruffydd, William John (1881-1954), Celtic and literary scholar and MP
- Grufydd, William John (1881-1954) Poet, Scholar and Critic
- Guest, Lady Charlotte Elizabeth (1812-1895), translator, diarist and collector
- Gulston, Alan James Gulson (1813-1886), novelist
- Gurney, Frederick George (1878-1947), antiquary
- Guy, David Thomas (1905-1976) Secretary of the South Wales District of the Wea
- Gwalchmai, Humphrey (1788-1847) Calvinistic Methodist Minister
- Gwynn, Harri (1913-1985) Poet
- Gwynne, Marmaduke (? 1694-1769) Friend of Charles and John Wesley
- Haggard, Sir Henry Rider (1856-1925) Knight, novelist
- Hague, Rene (1905-1981) Printer and Scholar
- Hahn, Kurt Matthias Robert Martin (1886-1974), educationalist
- Hain, Peter (b 1950), politician
- Haines, William (1853-1922) Monmouthshire Historian
- Haldane, Richard Burdon (1856-1928) Viscount Haldane, Lord Chancellor
- Hall, Augusta (1802-1896), promoter of Welsh Culture and wife of Baron Llanover
- Hall, Benjamin (d 1825) Chancellor of the Diocese of Llandaff
- Hall, Benjamin (1802-1867) 1st Baron Llanover, politician
- Hamer, Edward (c 1830-c 1901) Antiquary
- Hamer, Florrie (1903-1994), Sunday School teacher
- Hamilton, Sir William (1730-1803), knight, diplomat and archaeologist
- Hankey, Maurice Pascal Alers (1877-1963) 1st Baron Hankey, civil servant
- Hanley, James (1901-1985), novelist and playwright
- Hanmer, Sir John (d 1701) 3rd Baronet MP Major General
- Hanmer, John (1809-1881) Baron Hanmer, poet and MP
- Hanmer, Sir Thomas (1612-1678) 2nd Baronet MP
- Hanmer, Sir Thomas (1677-1746) 4th Baronet Speaker of House of Commons
- Hanmer, Sir Thomas (1747-1828) 2nd Baronet
- Harcourt, Sir William George Granville Venables Vernon (1827-1904) Knight, statesman
- Harding, John Taylor (1835-1928) Rural Dean of Monmouth
- Harding, Kenneth (1903-1992) Composer and Viola Player
- Hardy, William Henry Clement Le (1889-1961) Colonel Record Agent Archivist
- Harkness, Edward S (1874-1940) Banker
- Harries, David (1933-2003), Welsh musician and composer
- Harries, Edgar Phillips (1888-1963) Trade Unionist
- Harries, John (1787-1839) Astrologer
- Harris, Howell (1714-1773), Welsh Methodist reformer, evangelist, agriculturalist
- Harris, Joseph (1704-1764), assay master of the Mint
- Harris, Thomas (1705-1782), clothing contractor to Army
- Hart, Sir Robert (1835-1911) 1st Baronet, Inspector General of the Chinese Imperial Maritime Customs
- Hartland, Edwin Sidney (1848-1927) Folklorist
- Harvey, Sir Eliab (1758-1830) Knight Admiral MP for Maldon Essex
- Hastings, Selina (1707-1791), founder of Countess of Huntingdon's Connexion, wife of 9th Earl of Huntingdon
- Hatton, Ann Julia (1764-1838), writer and actress Worcester, Worcestershire;Swansea, Glamorgan
- Hawker, Joseph (d 1846) Herald
- Haycraft, Anna (1932-2005), novelist
- Haydock, Richard (c 1552-1605) Roman Catholic theologian, author
- Hay-Drummond, Louisa (d 1885), wife of 11th Earl of Kinnoull
- Hayek, Friedrich August von (1899-1992), economist
- Hayward, Abraham (1801-1884), essayist
- Head, Sir Edmund Walker (1805-1868) 8th Baronet, colonial governor
- Heath, Sir Edward Richard George (1916-2005), Knight statesman
- Hebblethwaite, Percival (1849-1922) registrar of Liverpool University
- Hefin, John (1941-2012), Welsh television director and head of drama at BBC Wales Aberystwyth, Cardiganshire;Cardiff, Glamorgan
- Hellings, Peter (1921-1994), poet
- Hemp, Wilfrid James (1882-1962), antiquary and archaeologist
- Henley, Peter (fl 1967-2017), photographer Aberystwyth, Cardiganshire
- Herbert, Sir Arthur James (1820-1897), Knight, General
- Herbert, Edmund Arthur (1866-1946) Brigadier General
- Herbert, Edward (1583-1648) 1st Baron Herbert of Cherbury, philosopher and historian
- Herbert, Edward (c 1633-1678) 3rd Baron Herbert of Cherbury
- Herbert, Edward (1785-1848) 2nd Earl of Powis
- Herbert, Edward James (1818-1891) 3rd Earl of Powis
- Herbert, George Augustus (1759-1827) 11th Earl of Pembroke, General
- Herbert, Sir Henry (1595-1674), Knight, Master of the Revels
- Herbert, Henry (c 1640-1691) 4th Baron Herbert
- Herbert, Henry (d 1738) 2nd Baron Herbert
- Herbert, Henry Arthur (1703-1772) 1st Earl of Powis
- Herbert, Henry Howard Molyneux (1831-1890) 4th Earl of Carnarvon, statesman
- Herbert, Ivor John Caradoc (1851-1933) Baron Treowen, Major General
- Herbert, Richard (? 1600-1655) 2nd Baron Herbert of Cherbury
- Herbert, Sir Thomas (1606-1682), 1st Baronet, traveller and author
- Herbert, Thomas (1656-1733) 8th Earl of Pembroke, Lord High Admiral
- Heron, Patrick (1920-1999), Painter
- Herring, William (d 1774) Dean of St Asaph
- Hetherington, Hector James Wright (1888-1965) Knight, university administrator
- Hibbert, George (1757-1837) West India Merchant MP
- Hicks, Henry (1837-1899), surgeon and geologist
- Hill, Sir Edward Stock (1834-1902) Knight MP
- Hill, Sir Richard (1733-1808) 2nd Baronet MP
- Hill, Rowland (1772-1842) 1st Viscount Hill, General
- Hills, Sir John (1834-1902) Knight Major General
- Hinds, John (1862-1928) MP
- Hiraethog, Griffith (d c 1566) Welsh genealogist
- Hoare, Sir Richard Colt (1758-1838) 2nd Baronet Historian and Archaeologist
- Hobley, Charles William (1867-1947) Colonial Administrator and Geologist
- Hobley, William (1858-1933) Calvinistic Methodist Minister Historian
- Hoddinott, Alun (1929-2008), composer
- Hodge, Sir Julian Stephen Alfred (b 1904) merchant banker
- Hodges, Cyril (1915-1974), industrialist and poet
- Hogg, Quintin Mcgarel (1907-2001) Baron Hailsham, Lord Chancellor
- Holbrooke, Josef Charles (1878-1958), musician
- Holland, Samuel (1803-1892) MP Pioneer of Welsh Slate Industry
- Holroyd, Sir Michael de Courcy Fraser (b 1935) Knight, biographer
- Hooker, Jeremy (b 1941) Poet and Critic
- Hooson, Hugh Emlyn (b 1925) Lord Hooson Politician
- Hooson, Tom Ellis (1933-1985) Conservative MP
- Hopkins, Glyn (1909-1991) Author and Local Historian
- Horsley, Samuel (1733-1806) Bishop of St Asaph mathematician
- Businessman, Alanson Bigelow (1863-1941) US Diplomat and Businessman
- How, William Walsham (1823-1897) Bishop of Wakefield
- Howard-Jones, Ray (1903-1996), artist
- Howell, David (1797-1873), Calvinistic Methodist minister
- Howell, David (1831-1903) Dean of St Davids
- Howells, Howell (1750-1842), Methodist minister
- Howells, Morgan (1794-1852), Calvinistic Methodist minister
- Howells, Rees (1879-1950) Baptist Minister
- Howells, Thomas John (1913-1990), Welsh film-maker Cardiff, Glamorgan;Penarth, Glamorgan
- Huckell, John (1729-1771) Poet
- Hudson, James Hindle (1881-1962) MP
- Hudson, Sir Robert Arundell (1864-1927), Knight, political organiser
- Hudson-Williams, Thomas (1873-1961), classical scholar
- Hughes, Beti (1926-1981), Welsh author
- Hughes, Cledwyn (1916-2001) Baron Cledwyn of Penrhos, politician
- Hughes, David Edward (1831-1900) Electrical Engineer
- Hughes, Glyn Tegai (1923-2017), politician, writer and critic
- Hughes, Goronwy Alun (fl 1990) Borough Librarian at Flint
- Hughes, Henry Harold (1864-1940), archaeologist
- Hughes, Hugh (1693-1776), Welsh-language poet Llandyfrydog, Anglesey;Llanfihangel Ysgeifiog, Anglesey
- Hughes, Hugh (1790-1863) Artist and Author
- Hughes, Hugh Michael (1858-1933) Congregational Minister
- Hughes, Hugh Robert (1827-1911) Lord Lieutenant of Flintshire Antiquary and Genealogist
- Hughes, James (1779-1844) Calvinistic Methodist Minister, hymn writer as Iago Trichrug
- Hughes, John (1775-1854) Calvinistic Methodist Minister Biographer Hymn Writer
- Hughes, John (1776-1843) Wesleyan Minister and Antiquary
- Hughes, John (1796-1860) Calvinistic Methodist Minister and Author
- Hughes, John (1827-1893) Calvinistic Methodist Minister
- Hughes, John (1842-1902) Wesleyan Minister,editor,author as Glanystwyth
- Hughes, John Ceiriog (1832-1887) Railway Superintendent and poet as Ceiriog
- Hughes, John Cledwyn (1920-1978) Novelist
- Hughes, John Henry (1814-1893), Congregational minister and poet
- Hughes, John Richard (1828-1893) Calvinistic Methodist Minister
- Hughes, John Roberts (1886-1962), antiquary and historian of the Quakers in Wales
- Hughes, Joshua (1807-1889) Bishop of St Asaph
- Hughes, Lot (1787-1873) Wesleyan Methodist Minister and Historian
- Hughes, Loti Rees (1908-1969) Labour Party Activist
- Hughes, Richard Arthur Warren (1900-1976) Author
- Hughes, Robert Owen (1858-1919) Welsh poet as Elfyn
- Hughes, Thomas (1803-1898) Calvinistic Methodist Minister, author as Glan Pherath
- Hughes, W Douglas (1889-1968) Llanelly Divisional Labour Party Agent
- Hughes, William Bulkeley (1797-1882) MP
- Hume, John (1706-1782) Bishop of Salisbury
- Humphreys, Charles (1854-1924) Naval Officer
- Humphreys, Edward Morgan (1882-1955), journalist and novelist
- Humphreys, Emyr Owen (b 1919) Novelist Poet and Dramatist
- Humphreys, Humphrey (1648-1712) Bishop of Hereford
- Humphreys, Richard (1790-1863) Calvinistic Methodist Minister
- Hunter, Joseph (1783-1861), antiquary
- Huntley, Richard Webster (1793-1857) Rural Dean of Hawkesbury and Bitton
- Hurd, Richard (1720-1808) Bishop of Worcester
- Hutt, Jill (fl 1970-1998) Welsh trades union official
- Hutton, Catherine (1756-1846), author
- Hutton, James (1715-1795) Founder of the Moravian Church in England
- Hutton, John (? 1740-1806) Vicar of Burton, author
- Hutton, Thomas (1757-1845) son of William Hutton
- Huxley, Thomas Henry (1825-1895) Scientist
- Hyde, Douglas (1860-1949) President of Ireland
- Ingram, James (d 1788) Methodist exhorter, Welsh Independent Minister
- Irby, George Florance (1860-1941) 6th Baron Boston
- Irwin, Margaret Hardinge (d 1940), Trade unionist
- Isaac, Norah (1914-2003), Author
- Iwan, Dafydd (b 1943) Folk Singer and Poet
- Jacob, Henry Thomas (1864-1957) Congregational Minister
- Jaffrenou, Francis (1879-1956) Breton Poet
- James, David (fl 1920) Baptist Minister
- James, David Emrys (1881-1952) poet as Dewi Emrys
- James, Evan (1809-1878) Wool Merchant Weaver and Poet as Ieuan Ap Iago
- James, Horatio (1789-1850) Captain RN
- James, John (1779-1864) Unitarian Minister and Schoolmaster
- James, John Lloyd (1835-1919), Congregational minister and historian
- James, Thomas (d 1751) Methodist Preacher
- James, Thomas (1834-1915) Calvinistic Methodist Minister and Schoolmaster
- James, Thomas Lewis (fl 1910), solicitor and antiquary
- James, Thomas Terry (1933-2016), Welsh composer and orchestral conductor Kidwelly, Carmarthenshire;Oxford, Oxfordshire
- James, William (1848-1907) Unitarian Minister, schoolmaster
- Janes, Alfred (1911-1999), painter
- Jarman, Alfred Owen Hughes (1911-1998), Professor of Welsh
- Jeffreys, George (1648-1689) 1st Baron Jeffreys of Wem, judge
- Jenkin, Thomas James (1885-1965) Botanist
- Jenkins, Dafydd (b 1911) Legal Historian
- Jenkins, David (1848-1915) Musician and Composer
- Jenkins, David (b 1912) librarian and archivist
- Jenkins, David Erwyd (d 1937) Presbyterian minister
- Jenkins, Evan (1882-1960) Welsh Poet
- Jenkins, Herbert (1721-1772), Independent minister
- Jenkins, James Travis (fl 1912-1943) Public Servant Author of Works On Fisheries and Whaling
- Jenkins, John (1770-1829) Welsh clergyman and antiquary called Ifor Ceri
- Jenkins, John (1779-1853) Baptist Minister Theologian and Publisher
- Jenkins, John (1872-1936) Theologian and poet as Gwili
- Jenkins, John Barnard (fl 1969) Welsh Nationalist
- Jenkins, John Geraint (b 1929) museum curator and historian
- Jenkins, Joseph (1743-1819) Particular Baptist Minister
- Jenkins, Joseph (1861-1929) Calvinistic Methodist Minister
- Jenkins, Sir Lawrence Hugh (1857-1928) Knight Judge of High Court of Calcutta
- Jenkins, Sir Leoline (1623-1685), Knight, civilian and diplomat
- Jenkins, Nigel (1949-2014), Anglo-Welsh poet, editor, journalist, psychogeographer, broadcaster, writer and lecturer Gorseinon, Glamorgan;Gower, Glamorgan;Swansea, Glamorgan
- Jenkins, Robert Thomas (1881-1969) Historian and Author
- Jenkins, William (fl 1855-1864) Baptist Minister
- Jenkinson, Charles Cecil Cope (1784-1851) 3rd Earl of Liverpool
- Jevons, Herbert Stanley (1875-1955), economist
- Jewsbury, Geraldine Endsor (1812-1880), novelist
- Job, John Thomas (1867-1938) Calvinistic Methodist Minister, hymn writer, poet
- John, Augustus Edwin (1878-1961), painter and etcher
- John, Brynmor Thomas (1934-1988) Labour MP
- John, Dorelia (1881-1969) painter
- John, Edward Thomas (1857-1931) MP
- John, Griffith (1831-1912) Missionary in China
- John, Gwendolen Mary (1876-1939), painter Haverfordwest, Pembrokeshire;Paris, France;London;Dieppe, France
- John, Sir William Goscombe (1860-1952), sculptor
- Johnes, Elizabeth Hills- (c1835-1927), wife of Sir James Hills-Johnes
- Johnes, Sir James Hills- (1833-1919) Knight Lieutenant General
- Johnes, John (1800-1876), judge
- Johnes, Thomas (c 1721-1780) MP
- Johnes, Thomas (1748-1816), of Hafod, antiquary, translator and MP
- Johnson, Richard (fl 1772-1803) East India Co Official
- Jones, Sir Albert Cynan Evans- (1895-1970), Welsh poet
- Jones, Arthur Glyn Prys- (1888-1987) Anglo Welsh Writer
- Jones, Benjamin George (1914-1989), Liberal politician
- Jones, Brynmor P (fl 1980-1998) Welsh clergyman and historian
- Jones, Sir Cadwaladr Bryner (1872-1954) Knight Agriculturist
- Jones, Caradog (1919-1973) Labour Candidate for Montgomeryshire Constituency
- Jones, Daniel Parry- (1891-1981) Author
- Jones, Daniel (1908-1985), Labour MP for Burnley
- Jones, Daniel Jenkyn (1912-1993) Composer and Conductor
- Jones, David (?1708-1785), publisher and poet of Trefiw
- Jones, David (1735-1810), curate of Llan-gan and Methodist preacher
- Jones, David (1736-1810), clergyman Llangan, Glamorgan
- Jones, David (1805-1868), Calvinistic Methodist minister and hymn writer
- Jones, David (1834-1890) antiquary
- Jones, David (1848-1922), Welsh poet
- Jones, David Glanaman (1867-1951), minister and writer
- Jones, David Ivon (1883-1924), Unitarian and traveller
- Jones, David James (1899-1968), Welsh author and poet
- Jones, David Lloyd (1843-1905), Calvinistic Methodist minister, astronomer and archaeologist
- Jones, David Michael (1895-1974) painter, poet and essayist
- Jones, David Phillip (1850-1883), Baptist minister
- Jones, David Watkin (1832-1905), historian and Welsh poet
- Jones, Donald H (fl 1923-1939) Local Historian
- Jones, Sir Edgar Rees (1878-1962) Knight MP
- Jones, Edmund (1702-1793) Independent Minister, antiquary as Yr Hen Broffwyd
- Jones, Edward (1752-1824) harpist, antiquary and music collector as Bardd y Brenin
- Jones, Edward (1780-1820) Methodist Minister
- Jones, Edward (c 1866-1924) Welsh Baptist Minister as Iorwerth Ddu
- Jones, Elias Henry (1883-1942) Author
- Jones, Elizabeth Mary (1878-1953) Novelist
- Jones, Eluned Bebb (1925-2010), radio script writer Bangor, Caernarfonshire
- Jones, Ernest Charles (1819-1869), Chartist and poet
- Jones, Evan (1820-1852), journalist and poet
- Jones, Evan David (1903-1987), librarian and archivist
- Jones, Evan Pan (1834-1922) Independent Minister
- Jones, Francis (1908-1993) Wales Herald Extraordinary Historian and Archivist
- Jones, Frank Price (1920-1975), historian and author
- Jones, Frederick Llewellyn- (1866-1941) Coroner for Flintshire Liberal MP
- Jones, Gareth Vaughan (1905-1935) Journalist
- Jones, Glyn (1905-1995), poet, short story writer and novelist
- Jones, Griffith (1683-1761) Rector of Llanddowror, education reformer
- Jones, Griffith Hugh (fl 1883-1896) Composer as Gutyn Arfon
- Jones, Gwilym Hadyn (b1947), politician
- Jones, Gwilym Peredur (1892-1975), economic historian
- Jones, Gwilym Richard (1903-1993), poet and journalist
- Jones, Gwyn (b 1907) Scholar Novelist and Short Story Writer
- Jones, Sir Henry (1852-1922) Knight, philosopher
- Jones, Sir Henry Haydn (1863-1950) Knight MP
- Jones, Hugh (1789-1858) Welsh printer, author and poet as Erfyl
- Jones, Hugh (1800-1872) Welsh Congregational Minister, poet as Cromwell o Went
- Jones, Hugh (1830-1911) Calvinistic Methodist Minister
- Jones, Hugh William (1802-1873) Baptist Minister and Editor
- Jones, Humphrey (1867-1947) Poet as Bryfdir
- Jones, Idwal (1895-1937) Playwright and Humorist
- Jones, Ieuan Wyn (b 1949) MP
- Jones, Isaac R (1877-1944) Poet as Rhuddonian
- Jones, Jack (1884-1970), author
- Jones, Jack Raymond (b 1922), artist and writer
- Jones, James Rhys Kilsby (1813-1889) Congregationalist Minister
- Jones, John (1820-1898) Local Historian and Folklorist Ivon
- Jones, John (c1585-1658), Calligrapher Antiquary
- Jones, John (? 1597-1660) Regicide
- Jones, John (1650-1727) Dean of Bangor
- Jones, John (fl 1758-1785), curate of Waldron, Sussex, vicar of Darrington, Yorkshire Darrington, Yorkshire;Waldron, Sussex
- Jones, John (1777-1842) MP
- Jones, John (1792-1852) Canon of St Davids Literaray Scholar and Poet as Tegid
- Jones, John (1796-1857) Calvinistic Methodist Minister Musician
- Jones, John (1810-1869) architect and poet as Talhaiarn
- Jones, John (1836-1921), Blacksmith Antiquary and Collector of MSS as Myrddin Fard
- Jones, John Morris- (1864-1929) Scholar Poet and Critic
- Jones, John Edryd (1876-1965) Minister at the Independent Chapel Rhosllanerchrugog
- Jones, John Gwilym (1904-1988), writer and critic
- Jones, John Harry (1881-1973) Economist
- Jones, John Henry (1909-1985) Director of Education for Cardiganshire
- Jones, John Idris (b 1938) Poet
- Jones, John Islan (1874-1968) Unitarian Minister at Bolton
- Jones, John Morgan (1838-1921), Calvinistic Methodist minister
- Jones, John Richard (1765-1822) Sandemanian Baptist Minister
- Jones, John Richard (1881-1955) Antiquary and Local Politician
- Jones, John Robert (1911-1970) Philosopher
- Jones, John Tudor (1904-1985), politician, editor and poet
- Jones, Jonah (1919-2004), sculptor
- Jones, Jonathan (fl 1850-1884) Antiquary
- Jones, Joseph David (1827-1870), composer
- Jones, Josiah Thomas (1799-1873), Independent minister, publisher, biographer
- Jones, Kitty Idwal (1898-1984), folklorist, missionary and educationalist
- Jones, Lewis (d 1882) Baptist Minister
- Jones, Lewis (1835-1915) journalist, printer and poet as Rhuddenfab
- Jones, Lewis (1836-1904) Pioneer of Welsh Colony in Patagonia and Writer
- Jones, Llifon Hughes- (1918-1996) musical composer and conductor
- Jones, Margaret (? 1850-1931) Poet called Myfanwy Meirion
- Jones, Martin (1897-1979), botanist
- Jones, Merfyn (fl 1964-1989) Welsh Liberal Party Activist
- Jones, Michael (1787-1853) Principal of the Independent College Bala
- Jones, Mordecai (1813-1880) Colliery Proprietor
- Jones, Morgan (1885-1939) MP
- Jones, Morgan Hugh (1873-1930), Calvinistic Methodist historian
- Jones, Morris Charles (1819-1893) Antiquary
- Jones, Owen (d 1795) Rector of Newborough
- Jones, Owen (1833-1899) Calvinistic Methodist Minister Bibliophile Antiquary
- Jones, Owen (1838-1866) Schoolmaster and Antiquary as Manoethy
- Jones, Owen Thomas (1878-1967), geologist
- Jones, Parry William John (1891-1963) opera singer
- Jones, Rees Jenkin (1835-1924) Unitarian Minister Schoolmaster Historian Hymn Writer
- Jones, Rhydderch Thomas (1935-1987), writer Cardiff, Glamorgan;Dolgellau, Merionethshire
- Jones, Rhys Bevan (1869-1933), Baptist Minister, conservative evangelical and author
- Jones, Rhys Samuel (b 1917) French Scholar
- Jones, Richard (? 1771-1833) Calvinistic Methodist Minister, hymn writer
- Jones, Richard Idwal Mervyn (1895-1937) dramatist and poet known as Idwal Jones
- Jones, Richard Robert (1780-1843) Welsh linguist as Dic Aberdaron
- Jones, Robert (1806-1896) Baptist Minister and Author
- Jones, Robert Ambrose (1851-1906) Methodist clergyman and author
- Jones, Robert Gerallt (1934-1999), poet, novelist and critic Nefyn, Caernarfonshire
- Jones, Robert Maynard (b 1929), writer, critic and scholar
- Jones, Robert Tudur (1921-1998), Church Historian
- Jones, Samuel Maurice (1853-1932) Artist
- Jones, Shirley (b1934), printmaker and publisher Glamorgan;Powys
- Jones, Stephen Barry (b 1938) Baron Jones of Deeside, MP for Flint East
- Jones, Ted Breeze (1929-1997), Welsh naturalist and broadcaster
- Jones, Theophilus (1759-1812), deputy registrar of the Archdeaconry of Brecon, historian of Brecknockshire
- Jones, Thomas (c1532-1609), Welsh-language poet and genealogist Tregaron, Cardiganshire;Gogerddan, Cardiganshire
- Jones, Thomas (1743-1803), landscape painter
- Jones, Thomas (1752-1845), rector, author Creaton, Northamptonshire
- Jones, Thomas (1870-1955), economist
- Jones, Thomas (1871-1938), schoolmaster and antiquary
- Jones, Sir Thomas Artemus (1871-1943), Knight, judge
- Jones, Sir Thomas George (1881-1948), Knight, newspaper proprietor and politician
- Jones, Thomas Gwynn (1871-1949), Celtic scholar
- Jones, Thomas Henry (1921-1965), poet
- Jones, Thomas Llechid (1867-1946), clergyman and antiquary
- Jones, Thomas Mervyn (1910-1989), public servant
- Jones, Thomas Owen (1875-1941), Welsh author
- Jones, Thomas Salisbury- (1882-1967), writer
- Jones, Thomas Tudno (1844-1895), Curate of Llanwrst, journalist, poet
- Jones, W Bradwen (1892-1976) composer
- Jones, Walter Idris (1900-1971), scientist and sportsman
- Jones, Sir William (1746-1794) Knight, orientalist and jurist
- Jones, William (1852-1914) Poet as Gwilym Wyn
- Jones, William (1857-1915) Liberal MP
- Jones, William Glynne- (1907-1977) Author
- Jones, William Garmon (1884-1937) historian librarian
- Jones, William Jenkyn (1852-1925) Calvinistic Methodist Missionary in Brittany
- Jones, William Owen (1861-1937) Minister of the Free Church of the Welsh Liverpool
- Jones, William Rhys (1868-1937) Baptist Minister and Folklorist
- Jones, William Richard (1840-1898) Calvinistic Methodist Minister, author as Goleufryn
- Jones, William Ronald Rees (1915-1987), editor and poet
- Jones, William Samuel (b 1920) Writer
- Jones, William Tudor (1865-1946) Unitarian Minister Philosopher
- Jones-Davies, Henry (1870-1955), Carmarthen County Councillor
- Joseph, Joseph (d 1890) Antiquary
- Joseph, Keith Sinjohn (1918-1994) Baron Joseph, politician
- Jowett, Benjamin (1817-1893), biblical and classical scholar Master of Balliol College Camberwell, Surrey;Oxford, Oxfordshire
- Judd, Charles Wilfred (1896-1974) Joint President United Nations Association
- Kay-Shuttleworth, Ughtred James (1844-1939) 1st Baron Shuttleworth, politician
- Kemeys, Sir Charles (1651-1702) 3rd Baronet MP
- Kemeys, Sir Charles (1688-1735) 4th Baronet Jacobite MP
- Kenyon, Sir Frederic George (1863-1952) Knight Director and Principal Librarian British Museum Papyrologist
- Kenyon, George (1776-1855) 2nd Baron Kenyon, politician
- Kenyon, John Robert (1807-1880) Professor of Law
- Kenyon, Lloyd Tyrell- (1864-1927) 4th Baron Kenyon
- Kenyon, Thomas (1780-1851) clerk of the King's Bench
- Kerr, Philip Henry (1882-1940) 11th Marquess of Lothian, statesman
- Kershaw, Sir John Anthony (1915-2008), MP
- Kilvert, Robert Francis (1840-1879) Anglican Clergyman Diarist
- King, Edward (1795-1837) Viscount Kingsborough, antiquary
- King, Hester (1784-1873), wife of 7th Baron King
- Kinney, Phyllis (b 1922), musicologist, language campaigner, performer
- Kinnock, Neil Gordon (b 1942) Baron Kinnock of Bedwellty, MP and Labour Party leader Tredegar, Monmouthshire
- Knight, Henry Hey (1795-1857) Rector of Neath Antiquary
- Knight, Samuel Johnes (1756-1852) Rector of Welwyn
- Kyffin, Morris (c 1555-1598) soldier, translator and poet
- Kynaston, Sir John Roger (1797-1866) 3rd baronet
- Lamb, Sir Matthew (1705-1768) 1st Baronet MP
- Lamb, Peniston (1745-1828) 1st Viscount Melbourne
- Landor, Walter Savage (1775-1864), author
- Lang, Arthur Moffat (1832-1916) Colonel Royal Engineers
- Larkin, Philip Arthur (1922-1985), poet
- Laski, Harold Joseph (1893-1950), political scientist
- Laski, Nathan (1863-1941) Indian Merchant and Public Servant
- Laski, Neville Jonas (1890-1969) Recorder of Liverpool
- Laws, Edward (1837-1913) Historian
- Lee, Matthew Henry (1832-1890) Vicar of Hanmer Antiquary
- Lees, Ted (fl 1945-1985), Captain, Intelligence Officer and Interpreter Bridgend, Glamorgan
- Leeson, Spencer (1892-1956) Bishop of Peterborough
- Legh, Thomas (1793-1857) MP
- Legonna, John (1918-1978) Welsh Nationalist
- Leighton, Frederic (1830-1896) Baron Leighton of Stretton, painter
- Letts, Thomas (1803-1873) Publisher of Diaries
- Leveson-Gower, Granville George (1815-1891) 2nd Earl Granville, statesman
- Levi, Thomas (1825-1916) Calvinistic Methodist Minister and Author
- Lewes, Thomas (1742-1795) Envoy to Saxony
- Lewis, Alun (1915-1944), poet and writer
- Lewis, Alun Tudor (1905-1986) Short Story Writer
- Lewis, David (1616-1679) Jesuit priest, pretended Bishop of Llandaff
- Lewis, David (1828-1908) Composer
- Lewis, David John (1879-1947) Congregational Minister of Bethesda Chapel Tumble
- Lewis, David Morgan (1851-1937), Congregational minister and physicist
- Lewis, Edward Aneurin (1880-1942) Historian
- Lewis, Eiluned (d 1979) Author
- Lewis, Erasmus (1670-1754) MP Diplomat
- Lewis, Evan (fl 1837-1882) Welsh Congregational Minister, hymn writer
- Lewis, Sir George Cornewall (1806-1863) 2nd Baronet Statesman and Author
- Lewis, Gwyneth (b1959), poet
- Lewis, Henry (1889-1968), Celtic scholar
- Lewis, Henry Watkin (1839-1897), engineer Merthyr Tydfil, Glamorgan;Harrogate, Yorkshire
- Lewis, Sir Herbert David William (1872-1931) Knight MP
- Lewis, Howell Elvet (1860-1953), minister, poet and hymn writer
- Lewis, Hywel David (1910-1992) Philosopher
- Lewis, Jessie Penn- (1861-1927) author and evangelist
- Lewis, John (1836-1892) Poet and Musician as Eos Glyn Wyre
- Lewis, John Gomer (? 1844-1914) Welsh Baptist Minister
- Lewis, Sir John Herbert (1858-1933) Knight MP
- Lewis, Lewis (? 1838-1906) Welsh Poet
- Lewis, Lewis William (1831-1901) poet and novelist as Llew Llwyfo
- Lewis, Rose Mabel (1853-1928), author
- Lewis, Saunders (1893-1985), dramatist, poet, literary historian and critic
- Lewis, Thomas (1821-1897) MP
- Lewis, Sir Thomas Frankland (1780-1855), 1st Baronet, politician
- Lewis, Timothy (1877-1958) Welsh Literary Scholar
- Lewis, Timothy Richards (1841-1886), surgeon and pathologist
- Leys, Norman (1875-1944), writer on colonial affairs
- Lhuyd, Edward (1660-1709) Naturalist and Antiquary
- Lhuyd, Humphrey (1527-1568) Physician and Antiquary
- Lindsay, Alexander Dunlop (1879-1952) 1st Baron Lindsay of Birker, philosopher
- Little, Helen Kaye (b1944), radiologist Battle, Sussex
- Livsey, Richard Arthur Lloyd (1935-2010) Baron Livsey of Talgarth, politician
- Llangewydd, Llywelyn ap (? 1540-1616), Welsh copyist and poet
- Llewellyn, Sir David Richard (1879-1940) 1st Baronet
- Lloyd, Charles (1766-1829) Unitarian Minister, schoolmaster
- Lloyd, Charles Arthur Albany (1785-1851) Rector of Whittington
- Lloyd, Charles Spencer (1789-1876), JP, high sheriff
- Lloyd, Daniel Lewis (1843-1899) Bishop of Bangor
- Lloyd, David (1724-1779), Arian minister, poet and linguist
- Lloyd, David (1912-1969) singer
- Lloyd, David John de (1883-1948), musician
- Lloyd, David Myrddin (1909-1981), librarian
- Lloyd, David Tecwyn (1914-1992), writer and literary critic
- Lloyd, Edward (fl 1660-1681) of Llanforda
- Lloyd, Evan (1734-1776) Vicar of Llanfair Dyffryn, poet and satirist
- Lloyd, Lady Frances (c1831-1886), daughter of 11th Earl of Kinnoull
- Lloyd, Sir Francis (1853-1926) Knight, Lieutenant General
- Lloyd, George Evan (d1900), Lt Colonel, 1st bn, West Riding Regiment
- Lloyd, George Newton Kynaston (1786-1848) Rector of Selattyn
- Lloyd, Howel William (1816-1893), antiquary
- Lloyd, Isaac Samuel (fl1914-1946), writer
- Lloyd, John (1750-1815), natural philosopher
- Lloyd, John (1833-1915), political reformer and antiquary
- Lloyd, John Arthur (1787-1864) JP
- Lloyd, John Davies Knatchbull (1900-1978), antiquary and public servant
- Lloyd, Sir John Edward (1861-1947), Knight, historian
- Lloyd, John Robert (d 1803) Anglican clergyman
- Lloyd, Louisa (1785-1866) daughter of Admiral Sir Eliab Harvey
- Lloyd, Morgan (1820-1893), barrister and politician
- Lloyd, Rhys Gerran (fl 1939-1974) Baron Lloyd of Kilgerran, politician
- Lloyd, Sir Richard (1634-1686), Knight, judge, MP
- Lloyd, Richard Dafydd Vivian Llewellyn (1906-1983), novelist
- Lloyd, Richard Thomas (1820-1898), JP, high sheriff
- Lloyd, Rossendale (1863-1940) Rector of Selattyn
- Lloyd, Simon (1756-1836), Methodist minister and agriculturist
- Lloyd, William (1627-1717) Bishop of Worcester
- Lloyd, William (1779-1843), JP, High Sheriff
- Lloyd-Howells, David (1942-2015), poet and composer Abergavenny, Monmouthshire
- Lloyd-Johnes, Herbert Johnes (1900-1983), public servant
- Lloyd-Jones, David Martin (1899-1981), preacher, physician and author
- Lloyd-Jones, John (1885-1956), poet and scholar
- Llwyd, Alan (b 1948) Poet, Editor and Critic
- Llwyd, Angharad (1780-1866) Antiquary
- Llwyd, Morgan (1619-1659) Welsh dissenter, poet and mystic
- Llwyd, Richard (1752-1835) Antiquary and Poet Bard of Snowdon
- Lockley, Ronald Mathias (1903-2000), author and naturalist
- Lodge, Sir Oliver Joseph (1851-1940) Knight, physicist
- Logan, Sir William Edmond (1798-1875) Knight Geologist
- Loveden, Edward Loveden (c 1751-1822) MP
- Loveden, Pryse (1815-1855) MP
- Lovett, Trevor (1899-1980), headmaster Holyhead, Anglesey
- Lumley, Richard (1810-1884) Calvinistic Methodist Minister
- Luxmoore, Charles Scott (1792-1854) Dean of St Asaph
- Lyttelton, George (1709-1773) 1st Baron Lyttelton, statesman
- Lyttelton, George William (1817-1876) 4th Baron Lyttelton
- Lyttelton, Mary (1813-1857), 1st wife of 4th Baron Lyttelton
- Macaulay, Thomas Babington (1800-1859) Baron Macaulay, statesman and historian
- MacColl, Norman (1843-1904), Editor of the Athenaeum
- MacDonald, Gordon (1888-1966) Baron Macdonald of Gwaenysgor, Labour politician
- MacDonald, James Ramsay (1866-1937), statesman
- Macdonald, Tom (1900-1980) Novelist
- Machen, Arthur Llewelyn Jones (1863-1947), novelist and essayist
- Mackail, John William (1859-1945), classical scholar, literary critic and poet
- Mackworth, Sir Humphry (1657-1727), Knight, politician and capitalist
- Macmillan, Hugh Pattison (1873-1952) 1st Baron Macmillan, Lord of Appeal
- Macmillan, Maurice Harold (1894-1986) 1st Earl of Stockton, Prime Minister
- Madariaga, Salvador de (1886-1978), diplomat and author
- Maddox, Isaac (1697-1759) Bishop of Worcester
- Madocks, William Alexander (1773-1828), MP, industrialist and philanthropist
- Mainwaring, William Henry (1885-1971) Labour MP
- Mair, Alexander (1870-1927) Professor of Philosophy
- Malcolm, Sir John (1769-1833) Knight, Indian administrator and diplomat
- Mallon, James Joseph (1875-1961) Warden of Toynbee Hall
- Mann, Sir John (1863-1955) Knight, chartered accountant
- Mansbridge, Albert (1876-1952) Educationist
- Mansell, Bussy (d 1750) 4th Baron Mansell of Margam
- Mansell, Edward (d 1585) Knight of Margam
- Mansell, Edward (c 1636-1706) Baronet
- Mansell, Thomas (c 1668-1723) 1st Baron Mansell of Margam
- Mansell, Thomas (1719-1743) 2nd Baron Mansell of Margam
- Mari Ellis, Mari Ellis (fl 1949-1998), author Aberystwyth, Cardiganshire
- Markham, Violet Rosa (1872-1959), Liberal activist and public servant
- Marquand, Hilary Adair (1901-1972) Statesman
- Martin, Alexander (1857-1946), Principal of New College, Edinburgh
- Martin, Sir Theodore (1816-1909) Knight, biographer
- Martineau, John Philip (1823-1891) solicitor
- Maskelyne, Nevil (1732-1811), astronomer
- Mathias, Roland Glyn (1915-2007), Poet, editor and critic
- Mathias, William James (1934-1993) Composer Conductor and Pianist
- Matthews, Edward (1813-1892), Calvinistic Methodist minister and author
- Matthews, John (1773-1848), surveyor
- Matthews, John (1808-1870) Mayor of Aberystwyth
- Maurice, Peter (1803-1878) Vicar of Yarnton Musicologist
- Maurice, Sir William (1542-1622) Knight Politician
- Maurice, William (d 1680) Antiquary
- Mavrice, William (d 1680) Welsh antiquary
- McAllister, Gilbert (1906-1964), Politician Journalist and Town Planner
- McBean, Angus (1904-1990), Welsh photographer South Wales;Acton, Middlesex;Covent Garden, Middlesex
- McGrath, Michael Joseph (1882-1961) Bishop of Menevia
- Means, Joseph Calrow (1801-1879) Baptist Minister Biographer Topographer
- Medici, Marie de (1573-1642) Queen of France
- Meredith, Sir John (1714-1780) Knight Lawyer
- Merivale, Charles (1808-1893) Dean of Ely
- Metcalf, John (b1946), composer Swansea, Glamorgan;Gower, Glamorgan;Cardiff, Glamorgan;Cheltenham, Gloucestershire;Banff, Alberta;Llanfair Clydogau, Cardiganshire
- Meyrick, Sir Samuel Rush (1783-1848), Knight, antiquary
- Michael, Ian David Lewis (b 1936) Professor of Spanish and Writer as David Serafin
- Miles, Bernard James (1907-1991) Baron Miles, actor
- Miles, Gareth (b 1938) Short Story Writer and Playwright
- Mills, John (1812-1873) Calvinistic Methodist Minister Writer Musician as Ieuan Glan Alarch
- Mills, Robert Scourfield (1863-1919) Adventurer and Author Called Arthur Owen Vaughan and Owen Rhoscomyl
- Milnes, Richard Monckton (1809-1885) 1st Baron Houghton, politician and poet
- Monckton, Ivan (b1953), Trade Union activist in Wales Wolverhampton, Staffordshire;Wales
- Monckton, Walter Turner (1891-1965) 1st Viscount Monckton of Brenchley
- Moon, Cedric J (b1948), representative on various Welsh deaf-related councils Cardiff, Glamorgan
- Morgan, Alan Bertram (1897-1924), 2nd Lieutenant, 29th Squadron Royal Flying Corps Pontypridd, Glamorgan;Reading, Berkshire;Caerphilly, Glamorgan;France
- Morgan, Sir Charles (1760-1846), 2nd Baronet, soldier and politician
- Morgan, Charles Octavius Swinnerton (1803-1888), MP and antiquary
- Morgan, Christopher John (1944-2014), Welsh author Cardiff, Glamorgan;Swansea, Glamorgan;Seaford, Sussex;Hawkhurst, Kent;Neath, Glamorgan
- Morgan, Derec Llwyd (b 1943), poet and critic
- Morgan, Evan (1809-1853), Calvinistic Methodist minister and author
- Morgan, Gwenllian Elizabeth Fanny (1852-1939) Welsh antiquary and local politician
- Morgan, Hilda (1926-1994), lecturer and music librarian
- Morgan, Horace (fl 1940-1950), writer
- Morgan, John (1840-1924) Archdeacon of Bangor
- Morgan, John (1886-1957) Archbishop of Wales
- Morgan, John Rhys (1822-1900), Welsh Baptist Minister, author and poet
- Morgan, Kenneth Owen (b 1934), historian
- Morgan, Lois (1900-1937) Lady Tredegar, actress
- Morgan, Mihangel (b 1955), author
- Morgan, Prys Thomas Jon (b 1937), writer and historian
- Morgan, Rhys (1892-1961), conductor and singer
- Morgan, Richard Humphreys (1850-1899), Calvinistic Methodist minister and controversialist
- Morgan, Robert (b1665), Canon of Hereford and antiquary
- Morgan, Robert (b1921), writer and artist
- Morgan, Thomas (1720-1799), Welsh Independent minister and author
- Morgan, Thomas John (1907-1987), Welsh scholar and essayist
- Morgan, Walter Thomas (1919-1990), librarian
- Morison, John Lyle (1875-1952) Historian
- Morley, John (1838-1923) Viscount Morley of Blackburn, statesman
- Morris, David (1930-2007), MEP, peace activist
- Morris, Edward Rowley (1828-1893) Antiquary
- Morris, Haf (1933-2012), cerdd dant setter, teacher and adjudicator
- Morris, Jan (b 1926), author
- Morris, John (b 1931) Lord Morris of Aberavon, MP
- Morris, John William (1896-1979) Baron Morris of Borth Y Gest, judge
- Morris, Lewis (1701-1765), Welsh scholar and poet
- Morris, Sir Lewis (1833-1907) Knight, Welsh poet and educationist
- Morris, Sir Rhys Hopkin (1888-1956) Knight MP
- Morris, Richard Roberts (1852-1935) Calvinistic Methodist Minister and Poet
- Morris, Robert Prys (c 1831-1890) Local Historian
- Morris, Roger (fl 1590) Antiquary Transcriber of Welsh MSS
- Morris, Silas (1862-1923) Principal Baptist College Bangor
- Morris, Tegwen Clee (1901-1965) Welsh Nationalist
- Morris, Thomas Evans (1863-1951), barrister and antiquary
- Morris, William (1705-1763) Botanist and Antiquary
- Morris, William (1783-1861) Calvinistic Methodist Minister
- Morrison, Herbert Stanley (1888-1965) 1st Baron Morrison of Lambeth, statesman
- Morys, Huw (1622-1709) Welsh Poet as Eos Ceiriog
- Moses, Evan (1726-1805) tailor, member of the Trevecka family
- Moss, Gwenfron (b 1898), missionary
- Mountford, George (fl 1900-1931), local historian
- Muir, John Ramsay Bryce (1872-1941) historian politician
- Murray, George Gilbert Aime (1866-1957), classicist and internationalist
- Murray, Lindley (1745-1826) Grammarian
- Murrell, Frank Edric Joseph (1874-1931) MP Businessman
- Mytton, Thomas (1597-1656) Parliamentarian
- Nairne, Sir Charles Edward (1836-1899) Knight General
- Napier, Macvey (1776-1847), editor of Edinburgh Review
- Nayler, Sir George (? 1764-1831) Knight, herald
- Nemo, Louis P (1900-1978), Breton writer
- Newell, Richard (1785-1852) Calvinistic Methodist Preacher and Temperance Worker
- Newman, John Henry (1801-1890) Cardinal, priest, poet and theologian
- Newton, Sir Charles Thomas (1816-1894) Knight Archaeologist and Diplomat
- Nicholas, Thomas (1816-1879) Welsh Congregational Minister, tutor and historian
- Nicholas, William Rhys (1914-1996) Poet, Hymn Writer and Editor
- Nicholls, Sir George (1781-1865) Knight, poor law reformer
- Niedergang, Ena N (b1945), educationalist and author Pontardawe, Glamorgan
- Noel-Baker, Philip John (1889-1982) Baron Noel Baker, politician
- Norris, Leslie (b 1921) Writer
- North, Frederick (1766-1827) 5th Earl of Guilford
- Norwood, Gilbert (1880-1954) Classical Scholar
- Novello, Ivor (1893-1951), actor and composer
- O'Casey, Sean (1880-1964), playwright and writer
- O'Grady, Standish Hayes (1832-1915) Irish Historian
- Oldfield-Davies, Alun (1905-1988), Head of the BBC in Wales
- Oldham, Joseph Houldsworth (1874-1969) Missionary
- Oldys, William (1696-1761) Herald and Antiquary
- Olivier, Laurence Kerr (1907-1989) Baron Olivier, actor
- Ollivant, Alfred (1798-1882) Bishop of Llandaff
- Ommanney, Sir Francis Molyneux (1774-1840) Knight MP Navy Agent
- Onions, Oliver (1873-1961), novelist
- Ormond, John (1923-1990), poet and film maker
- Ormsby-Gore, John Ralph (1816-1876) 1st Baron Harlech, politician
- Ormsby-Gore, Owen (d 1852), Captain
- Ormsby-Gore, William (1779-1860), MP
- Ormsby-Gore, William George Arthur (1885-1964) 4th Baron Harlech, politician
- Ormsby-Gore, William Richard (1819-1904) 2nd Baron Harlech, politician
- Orwig, Dafydd (1918-1996) Welsh nationalist
- Ottley, Adam (d 1723) Bishop of St David's
- Ottley, Sir Francis (1601-1649) Knight, Royalist
- Owain, Owain Llewelyn (1878-1956) Journalist and Author
- Owen, Arthur Charles Humphreys- (1836-1905) MP
- Owen, Sir Arthur David Kemp (1904-1970) Knight, economist
- Owen, David (1784-1841) Farmer and Poet as Dewi Wyn O Eifion
- Owen, Dyddgu (1906-1992), writer of children's books
- Owen, Edward (1728-1807) Rector of Warrington Classical Scholar
- Owen, Edward (1853-1943) Antiquary
- Owen, Elias (1833-1899) Curate of Llanyblodwel Headmaster and Antiquary
- Owen, Ellis (1789-1868), Welsh antiquary and poet
- Owen, Evan (d ? 1924), Writer On Welsh Nonconformity Historian
- Owen, George (1552-1613) Welsh antiquary and historian
- Owen, Geraint Dyfnallt (1908-1993) Historian and Novelist
- Owen, Goronwy (1723-1769), Welsh poet
- Owen, Henry (1844-1919), solicitor and antiquary
- Owen, Herbert Isambard (1850-1927) Deputy-Chancellor of the University of Wales
- Owen, Hugh (1761-1827), archdeacon of Shropshire, antiquary
- Owen, Sir Hugh (1804-1881) Knight Promoter of Welsh Education
- Owen, Hugh (1880-1953) Author and Historian
- Owen, John (d 1759), poet and harpist
- Owen, John (1766-1822) Secretary of the British and Foreign Bible Society
- Owen, John (1821-1883), Welsh musician
- Owen, John (1854-1926) Bishop of St Davids
- Owen, John (1863-1953), Welsh Presbyterian minister
- Owen, John (1873-1914), composer
- Owen, Morfydd Llwyn (1891-1918), musician
- Owen, Nicholas (1752-1811), Curate of Llanfihangel, Antiquary
- Owen, Owen (1786-1867) Poet as Owain Lleyn
- Owen, Owen Griffith (1847-1916) Calvinistic Methodist Minister and poet as Alafon
- Owen, Sir Richard (1804-1892) Knight, comparative anatomist and palaeontologist
- Owen, Sir Robert (1658-1698) Knight Politician
- Owen, Robert (1771-1858) Socialist and Philanthropist
- Owen, Robert (1834-1899) Calvinistic Methodist Minister Author Historian
- Owen, Robert (1885-1962) Welsh antiquary and genealogist as Bob Owen Croesor
- Owen, Thomas (1872-1956) Welsh writer as Hesgin
- Owen, William (? 1530-1587), Welsh poet
- Owen, William (1607-1670) Governor of Harlech
- Owen, William (d 1778) Captain RN
- Owen, William (1758-1837) King's Counsel Bankruptcy Commissioner
- Owen, William Griffith (1857-1922) Poet as Llifon
- Owens, Owen (1792-1862) Welsh Independent Minister, schoolmaster
- Paget, George Henry Charles Victor (1922-2013) 7th Marquess of Anglesey
- Pakenham-Walsh, Mabel (b 1937), Painter and Sculptor
- Palgrave, Sir Francis (1788-1861) Knight, barrister, antiquary and archivist
- Palmer, Alfred Neobard (1847-1915), historian
- Pamplin, William (1806-1899), botanist
- Panizzi, Sir Anthony (1797-1879) Knight Principal Librarian of the British Museum
- Panton, Paul (1727-1797) lawyer and antiquary
- Panton, Paul (1758-1822) Lawyer Antiquary and Author as Monensis
- Panzera, Francis William (1851-1917) Lieutenant Colonel Engineer
- Pares, Sir Bernard (1867-1949) Knight historian of Russia
- Pares, Richard (1902-1958), historian
- Parker, Charles (1919-1980) BBC radio producer
- Parker, Sir William (1781-1866), 1st Baronet, Admiral of the Fleet
- Parkes, David (1763-1833) Schoolmaster Draughtsman and Antiquary
- Parry, Annie Julian (1889-1972), teacher
- Parry, Catherine (d 1788) Novelist
- Parry, Sir David Hughes (1893-1973) Knight Professor of Law
- Parry, Edward (1798-1854) Publisher and Antiquary
- Parry, Gordon Samuel David (b 1925) Baron Parry of Neyland
- Parry, Griffith (1827-1901) Calvinistic Methhodist Minister and Author
- Parry, Gwenlyn (1932-1991), dramatist and script writer
- Parry, John (1888-1965), driver, Royal Field Artillery Derwen, Denbighshire
- Parry, John Orlando (1810-1879) Singer and Entertainer
- Parry, Joseph (1841-1903), composer
- Parry, Richard (1560-1623) Bishop of St Asaph
- Parry, Richard (1803-1897) Independent Minister, author and poet as Gwalchmai
- Parry, Robert (fl 1540-1612), Welsh author and diarist
- Parry, Robert Williams (1884-1956), poet
- Parry, Sarah Winifred (1870-1953) Writer called Winnie Parry
- Parry, Sir Thomas (1904-1985) Knight Principal of the University College of Wales Aberystwyth
- Parry, Thomas (1904-1985) Scholar Critic and Editor
- Parry, William John (1842-1927) Labour Leader and Author
- Parry-Williams, Sir Thomas Herbert (1887-1975), Knight, poet, essayist and scholar
- Paton, John Lewis (1863-1946) educationalist
- Patti, Adelina (1843-1919), opera singer
- Pattison, Mark (1813-1884) Rector of Lincoln College Oxford Biographer
- Payne, Ffransis George (1900-1992), Folk historian
- Payne, Henry Thomas (1759-1832) Archdeacon of Carmarthen Ecclesiastical Historian
- Peate, Iorwerth Cyfeiliog (1901-1982) Curator of Welsh Folk Museum Archaeologist
- Pedersen, Holger (1867-1953) Danish Linguist
- Pember, Edward Henry (1833-1911) Lawyer Poet
- Peniston, Lamb (fl 1708-1735) Lawyer
- Pennant, David (1763-1841), artist
- Pennant, Richard (? 1737-1808) Baron Penrhyn, politician
- Pennant, Thomas (1726-1798), naturalist, traveller and topographer
- Pennant, Hon Violet Blanche Douglas- (d 1945) Commandant of WRAF
- Perceval, Spencer (1762-1812), statesman
- Percy, Thomas (1729-1811), Bishop of Dromore, antiquary
- Peter, John (1833-1877) Welsh Independent Minister Scholar as Ioan Pedr
- Pettitt, Ann (b1947), Artist Writer Campaigner
- Petts, John (1914-1991) Artist and Engraver
- Petty-Fitzmaurice, Henry (1780-1863) 3rd Marquess of Lansdowne, statesman
- Petty-Fitzmaurice, Henry Thomas (1816-1866) 4th Marquess of Lansdowne
- Philipps, Sir Charles Edward Gregg (1840-1928) 1st Baronet
- Philipps, Sir John (d 1737) 4th Baronet MP
- Philipps, Sir John (1701-1764) 6th Baronet Commissioner of Board of Trade
- Philipps, Richard (1744-1823) Baron Milford
- Philips, Katherine (1631-1664), poet and translator
- Philips, Richard (1891-1983) Agriculturalist and Author
- Phillimore, Egerton Grenville Bagot (1856-1937) antiquarian book dealer, antiquary and Celtic scholar
- Phillimore, Joseph (1775-1855) MP Professor of Civil Law
- Phillipps, James Orchard Halliwell- (1820-1889), antiquary and literary scholar
- Phillipps, Sir Thomas (1792-1872) Baronet, antiquary, collector of MSS and books
- Phillips, David (1812-1904) Calvinistic Methodist Minister Poet
- Phillips, David Rhys (1862-1952), librarian and historian of the Vale of Neath
- Phillips, Edgar (1889-1962) Archdruid of Wales and Poet as Trefin
- Phillips, Evan Owen (d 1897) Dean of St Davids
- Phillips, Griffith (1846-1920) Poet as Briwlyn
- Phillips, John (1800-1874), geologist
- Phillips, John (1810-1877) Printer and Poet as Tegidon
- Phillips, John (1810-1867) Calvinistic Methodist Principal of Normal College Bangor
- Phillips, Robert (1749-1822) Barrister MP
- Phillips, Sir Thomas (1801-1867) Knight Mayor of Newport
- Phillips, Thomas (1806-1870) Calvinistic Methodist Minister
- Phillips, William (1775-1828) Mineralogist and Geologist
- Phillpotts, Henry (1778-1869) Bishop of Exeter
- Phipps, Sir Charles Beaumont (1801-1866), Knight, Lieutenant Colonel and official of Royal Household
- Picton, Sir Thomas (1758-1815), Knight Lieutenant General Governor of Trinidad
- Pierce, Ellis (1841-1912), bookseller, antiquary and author
- Pierce, Evan (1808-1895) Welsh Physician
- Pierce, Rice (c 1684-1766) Rector of Llangelynnin
- Pierce, Thomas Jones (1905-1964), historian
- Piercy, Benjamin (1827-1888) Railway Engineer
- Piette, Jean Raymond Francois (1920-1971) Celtic Scholar
- Pigott, Charlotte (c1808-1883), wife of George Pigott
- Pigott, George Grenville Wandesford (1796-1865) MP
- Pinker, James Brand (1863-1922), literary agent
- Piozzi, Hester Lynch (1741-1821), literary figure and writer
- Pitt, Thomas (1775-1804) 2nd Baron Camelford
- Playfair, Lyon (1818-1898) 1st Baron Playfair of St Andrews, chemist
- Plummer, Alfred (1841-1926) Theologian
- Plunket, William Conyngham (1764-1854) 1st Baron Plunket, Lord Chancellor of Ireland
- Plunkett, Sir Horace Curzon (1854-1932) Knight, Irish statesman
- Poingdestre, Jean (1609-1691) Historian Writer On Jersey
- Pollinger, Laurence (fl 1944-1964) Literary Agent
- Pollock, Sir William Frederick (1815-1888) 2nd Baronet Queens Remembrancer Author
- Ponsonby, Sarah (1755-1831), one of the "Ladies of Llangollen"
- Porter, Sir Robert Ker (1777-1842) Knight, painter and traveller
- Potter, Robert (1721-1804) Poet and Politician
- Pound, Ezra Loomis (1885-1972), poet
- Povey, Meic (b1950), playwright Cardiff, Glamorgan
- Powel, Thomas (1845-1922) Celtic Scholar
- Powell, George Eyre (1790-1855) Commander RN
- Powell, John Enoch (1912-1998), politician and author
- Powell, Lewis (fl 1630) Lamphey, Pembrokeshire
- Powell, Raymond (1928-2001), knight MP
- Powell, Thomas (1735-1820), poet
- Powell, William Edward (1788-1854) MP
- Powell, William Thomas Rowland (1815-1878) MP
- Power, Sir John Cecil (1870-1950) 1st Baronet MP
- Powys, John Cowper (1872-1963), novelist and writer
- Powys, Llewelyn (1884-1939) Author
- Powys, Theodore Francis (1875-1953), author
- Pretyman, Sir George Tindal (1845-1917) Knight Major General
- Price, David (1762-1835), orientalist and historian
- Price, David (1865-1931), Baptist minister
- Price, James (1917-2006), civil engineer
- Price, John (1830-1906), principal of the Normal College, Bangor
- Price, Rees (fl 1850-1893), Baptist minister
- Price, Richard (1723-1791), dissenting minister, philosopher and actuary
- Price, Thomas (1787-1848), historian
- Price, Sir Uvedale (1747-1829) 1st Baronet, writer on landscape gardening
- Price, William (1800-1893), cremation advocate
- Price, William Watkin (1873-1967) Welsh historian
- Prichard, Caradog (1904-1980) Poet and Novelist
- Prichard, John (1796-1875) Welsh Baptist Minister, tutor and author
- Pride, W Emrys (b 1904) Civil Servant
- Primrose, Archibald Philip (1847-1929) 5th Earl of Rosebery, statesman
- Pritchard, Evan (1769-1832) Poet as Ieuan Lleyn
- Pritchard Jones, Harri Elwyn (1933-2015), Welsh language author, critic, and psychiatrist Dudley, Worcestershire;Anglesey;Dublin, County Dublin;Cardiff, Glamorgan
- Pritt, Denis Nowell (1887-1972) MP Lawyer and Author
- Probyn, Sir Edmund (1678-1742) Knight Judge
- Profumo, John Dennis (1915-2006), politician
- Prosser, David Lewis (1868-1950) Archbishop of Wales
- Prothero, Cliff (1898-1990) Secretary of the Welsh Regional Council of Labour
- Protheroe, Daniel (1866-1934) Musician
- Pryce, Arthur Ivor (1867-1940) Bangor Antiquary
- Pryce, Lewis Hugh Oswald (1873-1930) Archdeacon of Wrexham
- Pryce, Lucy Myfanwy (1890-1976) Novelist and Short Story Writer
- Pryce, Shadrach (1833-1914) Dean of St Asaph
- Prys, Owen (1857-1934) Principal of Aberystwyth Theological College
- Prys-Davies, Gwilym (1923-2017), Labour politician
- Pryse, Edward Lewis (1817-1888) MP for Cardigan
- Pryse, Pryse (1774-1849) MP
- Pryse, Robert John (1807-1889) Welsh Author and Lexicographer
- Puddicombe, Anne Adalisa (1836-1908), novelist
- Pugh, Francis (1720-1811) Moravian Minister
- Pugh, Hugh (1803-1868) Independent Minister and Schoolmaster
- Pugh, John (1846-1907) Calvinistic Methodist Minister
- Pugh, John (fl 1849-1890) Calvinistic Methodist Minister at Llanfechain and Holywell
- Pugh, Lewis Pugh (1837-1908) MP for Cardiganshire
- Pugh, Philip (1679-1760), Congregational minister
- Pugh, Sir William John (1892-1974) Knight, geologist
- Pughe, John (1815-1874) Physician and Litterateur
- Pughe, William Owen (1759-1835), antiquary and lexicographer
- Puleston, Sir John Henry (1829-1908) Knight Politician
- Quiggin, Edmund Crosby (1875-1920), Celtic and linguistic scholar
- Quin, Windham Henry Wyndham- (1782-1850) 2nd Earl of Dunraven
- Radclyffe, Anthony James (1757-1814) 5th Earl of Newburgh
- Radford, Courtenay Arthur Ralegh (1900-1998) Archaeologist
- Raffan, Keith William Twort (b 1949) MP
- Raine, Kathleen Jessie (1908-2003), poet
- Ramsay, Sir Andrew Crombie (1814-1891) Knight, geologist
- Randall, Henry John (1877-1964) Solicitor Archaeologist and Antiquary
- Ratcliffe, Samuel Kerkham (1868-1958), journalist and lecturer
- Rathbone, Hugh Reynolds (1862-1940) Businessman MP
- Rawlins, Monica Octavie (1903-1990) Artist and Goose Breeder
- Rees, Alwyn (1911-1974) Welsh Nationalist Author and Journalist
- Rees, David (1801-1869) Welsh Congregational Minister, editor
- Rees, David (1818-1904) Calvinistic Methodist Preacher
- Rees, Evan (1850-1923) Calvinistic Methodist Minister, poet as Dyfed
- Rees, Henry (1798-1869) Calvinistic Methodist Minister
- Rees, Sir James Frederick (1883-1967) Knight, historian and public servant
- Rees, John Collwyn (1919-1980) Professor of Political Theory and Government
- Rees, John Thomas (1857-1949), composer and conductor
- Rees, Jonathan (1841-1905) essayist, educationist and poet as Nathan Wyn
- Rees, Lilian (c 1920-1996), author
- Rees, Mati (1902-1989), author and broadcaster
- Rees, Morgan Goronwy (1909-1979), writer and university principal
- Rees, Thomas (1815-1885) Independent Minister and Historian
- Rees, Thomas (1869-1926) Principal of Bala Bangor Independent College
- Rees, Thomas Ifor (1890-1977), diplomat, translator and publisher
- Rees, William (1802-1883), Independent minister, politician and poet
- Rees, William (c1824-1898), Welsh clergyman Llangyfelach, Glamorgan;Swansea, Glamorgan;Llanboidy, Carmarthenshire
- Rees, William (1887-1978), historian
- Rees, William Jenkins (1772-1855) Vicar of Heyop, antiquary
- Rees, William Melville (1873-1929), surgeon, RN
- Rees, William Thomas (1838-1904), Welsh musician
- Reeve, Henry (1813-1895), journalist and writer
- Reichel, Sir Harry Rudolph (1856-1931) Knight Principal University College Bangor
- Reilly, Sir D'Arcy Patrick (1909-1999) Politician
- Relly, James (? 1722-1778) Universalist
- Rendel, Sir Alexander Meadows (1829-1918), Knight, civil engineer
- Rendel, George Wightwick (1833-1902) Civil Engineer
- Rendel, Sir George William (1889-1979) Knight Diplomat
- Rendel, James Meadows (1799-1856) Engineer
- Rendel, Stuart (1834-1913) Baron Rendel, politician
- Repton, Humphry (1752-1818), landscape gardener
- Rhys, Edward Prosser (1901-1945) Editor and Poet
- Rhys, Ernest Percival (1859-1946), author and editor
- Rhys, James Ednyfed (1876-1960) Writer as Ap Nathan
- Rhys, Sir John (1840-1915) Knight, Celtic scholar historian
- Rice, George (c 1724-1779) Politician
- Richard, Ebenezer (1781-1837) Calvinistic Methodist Minister
- Richard, Henry (1812-1888) MP Secretary of the Peace Society
- Richard, Thomas (1783-1856), Calvinistic Methodist minister
- Richard, Timothy (1845-1919), missionary to China
- Richards, Alun (1929-2004), novelist and playwright
- Richards, Brinley (1904-1981) Archdruid of Wales
- Richards, Ceri Giraldus (1903-1971), painter
- Richards, David (1751-1827) Welsh poet as Dafydd Ionawr
- Richards, Edward (1893-1973), Welsh musician Wales
- Richards, Frances (1903-1985), painter, potter and illustrator
- Richards, Frederick Charles (1878-1932) Etcher and Author
- Richards, Gwnfryn (b 1902) Dean of Bangor
- Richards, Henry Brinley (1819-1885) Pianist and Composer
- Richards, Henry Caselli (1884-1949) Geologist
- Richards, John Lloyd (1790-1854) Vicar of Llanwddyn
- Richards, Mary (1787-1877) Copyist of Welsh Literature and Music
- Richards, Nansi (1888-1979) Harpist
- Richards, Robert (1884-1954) MP
- Richards, Thomas (1754-18