The Communist Party of Great Britain (CPGB) was a political party that existed from 1920 to 1991.

Communist Party of Great Britain or Communist Party of Britain may also refer to:

Communist Unity Group, an early communist group formed in January 1919 which joined the CPGB in 1920 Communist Party of Britain (CPB), formed in 1988, which considers itself to be the legal continuation of the CPGB Communist Party (British Section of the Third International), active during 1920 and led by Sylvia Pankhurst Communist Party of Great Britain (Provisional Central Committee) (CPGB-PCC), founded in 1989 but originally a Leninist faction within the CPGB Communist Party of Britain (Marxist–Leninist) (CPB-ML), an anti-revisionist group which split from the CPGB in 1968 Communist Party of Great Britain (Marxist–Leninist) (CPGB-ML), an anti-revisionist group which split from the Socialist Labour Party in 2004 Communist Party of South Wales and the West of England Communist Workers' Party, a left communist group active during the early 1920s New Communist Party of Britain, an anti-revisionist group formed in 1977 Revolutionary Communist Party (UK, 1944), a Trotskyist group which existed from 1944 to 1949 Revolutionary Communist Party (UK, 1977), a Trotskyist group formed in 1977 and disbanded in 1996 Revolutionary Communist Party of Britain (Marxist–Leninist), an anti-revisionist group formed in 1979, previously Maoist

See Also Revolutionary Communist Party (disambiguation)