Peter Kerrigan (26 June 1899 – 15 December 1977) was a communist activist in Britain. Born in the Hutchesontown area of Glasgow, Kerrigan was apprenticed on the railways before serving in the Royal Scots from 1918 until 1920. He joined the Communist Party of Great Britain (CPGB) in 1921, but left in 1922 after the party declined to oppose Labour Party candidates in the general election.