Sir Harry Raymond Pitt FRS (3 June 1914 – 8 October 2005)[1] was a British mathematician.
From 1936 to 1939 he held a Fellowship at Peterhouse, during which period he spent about a year at Harvard as a Choate Memorial Fellow.
He was awarded a PhD by Cambridge University in 1938 for research on Tauberian theorems, giving him a long-term interest in probability theory.
Between 1975 and 1978 Pitt served as chairman of the Universities Central Council on Admissions, and between 1984 and 1985 he was President of the Institute of Mathematics and its Applications, the association of practising mathematicians.
Pitt was awarded honorary degrees by the universities of Aberdeen (1970), Nottingham (1970), Reading (1978), and Belfast (1981).