William Philip Allen CBE (11 November 1888[1] – 4 May 1958) was a British trade unionist.
Born in Islington, Allen worked for the Great Northern Railway from 1907, initially as an engine cleaner.
He became active in the Associated Society of Locomotive Engineers and Firemen (ASLEF), and served as its Hornsey branch secretary and on the national executive before winning election as the union's president in 1930, being re-elected in 1932 and 1933.
[2] After his final term as president, Allen was employed as the union's organising secretary.
[6] In 1953, he became the BTC's COE and Staff, the role later renamed Manpower Adviser, retaining his negotiation responsibilities.