Dr E A Carmichael: 1948 tour to Austria, Czechoslovakia and Poland, lecturing on neurology.
Dr E B Chain: 1946 tour to France, lecturing on pathology; 1947 tours to Italy, Denmark, Finland and Sweden, lecturing on penicillin chemistry.
Dr J T Chesterman: 1948 tour to Italy, lecturing on various medical subjects.
A M Chitty: 1947 tour to Turkey, lecturing on town planning.
J T Christie: 1947 tour to Austria, lecturing on British education and on the 'triumph of the spoken word'.
Dr George Cockerham: 1947 tour to Hungary, lecturing on potato breeding and virus diseases.
Captain Colin Coote: 1946 and 1947 tours to France, lecturing on the development of the English constitution and on the English parliament.
Sir Reginald Coupland: 1946 tour to Denmark, lecturing on British colonial policy and the development of the Commonwealth.
Robert Cruikshank: 1947 tour to Czechoslovakia and Poland and 1948 tour to Belgium and Holland, lecturing on the control of infectious diseases.
Dr C D Darlington: 1947 tour to France, Portugal and Spain, lecturing on evolution and genetics.
Frank L Dash: 1946 tour to France, lecturing on the Education Act, social trends in Britain and the English public school.
Mrs Helene Dash: 1948 tour to France, lecturing on the Women's Institute and British rural life.
Lord Derwent: 1948 tour to Cyprus and French North Africa (Algeria and Morocco), lecturing on life and the arts in Britain.
Professor Paul A M Dirac: 1945 tour to France, lecturing on the development of atomic theory.
Professor Bonamy Dobree: 1946 tour to Holland lecturing on Defoe; 1947 tour to France lecturing on Lord Chesterfield and France
Professor E C Dodds: proposed 1948 tour to Czechoslovakia.
Professor E C Dodds and Professor J W Cook: 1948 tour to Argentina, lecturing on synthetic oestrogens in medicine and biology (Dodds) and organic chemistry (Cook).
Jane Drew: 1946 tour to Switzerland, lecturing on domestic architecture and design.
C E W Duly: 1947 tour to Argentina and Uruguay, lecturing on the British labour movement and trades unionism.
Thomas Dunbabin: 1946 tour to Denmark and Norway, lecturing on Australia.
Robert Dunnett: 1946 tour to Norway, lecturing on present day Scotland.