Bill Warren (1935–1978) was a British Communist, originally a member of the Communist Party of Great Britain and later a contributor to New Left Review. In his last years he was a member of the British and Irish Communist Organisation. Some commentators have likened Warren's ideas on capitalism, particularly his belief that the creation of a global market is required for the creation of a Communist society, to other thinkers, such as the Revolutionary Communist Party and Nigel Harris.