Percy Hanley

Percy Hanley (29 May 1905 – 18 September 1973) was a British trade unionist.

Hanley joined the Amalgamated Engineering Union (AEU) in 1924, and became increasingly prominent in the union. Based in Peterborough, he worked as the union's part-time district secretary. During this period, he was a delegate to its national conference on five occasions, serving on its standing orders committee for five of these.

In 1950, Hanley began working full-time for the union, as divisional organiser of its number 12 district. During this period, he served as staff-side secretary on the Whitley Councils for the Air Ministry and Civil Air Transport. From 1966, he instead took the lead on railway-related workers in the union. In 1969/70, he additionally served as president of the Confederation of Shipbuilding and Engineering Unions. In retirement, he served on the Metrication Board.