This is a list of notable current and former members of the Socialist Party of Great Britain. Where available, their term of membership is indicated.

A. S. Albery (1904) E. J. B. Allen (1904–1906) Alexander Anderson (1904–1926) Moses Baritz Robert Barltrop Dan Billany (1931–1933) John Bird (1950s) Adam Buick (1962–) F. K. Cadman (1904–after 1931) Jim D'Arcy (1943-1991) Jack Fitzgerald (1904–1929) R. M. Fox Alec Gray (1904–after 1911) Edgar Hardcastle (1922–1991) Horace Hawkins (1904–1905) George Hicks (1904, 1908–1910) Thomas A. Jackson (1904–1909) Albert E. Jacomb (1904–1942) Jack Kent (1904–1908) Con Lehane (1904–1906) Joan Lestor Henry Martin (1904–1905, 1908–1911) Cyril May (1940-1991) Valentine McEntee (1904–1905) Hans Neumann (1904–1911) John Rowan David Ramsay Steele (1960s) George Walford Laurie Weidberg Harry Young (1940–1991)

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