Brynmor Thomas John (18 April 1934 – 13 December 1988) was a British Labour politician. John was Member of Parliament for Pontypridd in South Wales from 1970 until his death. During the Labour government of 1974 to 1979, he was a junior Defence minister for the Royal Air Force (RAF) (1974–1976), a Home Office minister (1976–1979) and Shadow Secretary of State for Defence (1980–1981).