Sir Reginald Frederick Brittain Bennett (b Sheffield 22 July 1911 – d London 19 December 2000) was an English Conservative Party politician, international yachtsman, psychiatrist and painter.
Bennett was educated at Winchester College and New College, Oxford.
He was in the RNVR from 1934 to 1946.
Bennett married Henrietta Crane in 1947: they had one son and three daughters.
He was a helmsman of Shamrock V 1934-35 and was in the British America's Cup team in 1949 and 1953.
Bennett contested Woolwich West in 1945. He was Member of Parliament for Gosport and Fareham from 1950 to 1974, and after boundary changes, for Fareham from 1974 to 1979. He was Parliamentary Private Secretary to Iain Macleod 1956–63 and chaired the Parliamentary and Scientific Committee 1959–62. He was also chairman of the catering committee.