John Sumner may refer to:
Entertainment John Sumner (actor) (died 1649), English theatre actor during the Caroline era J. D. Sumner (1924–1998), American gospel singer and songwriter John Sumner (director) (1924–2013), English-born Australian artistic director and founder of Melbourne Theatre Company
Religion John Sumner (priest) (died 1772), Canon of Windsor and Headmaster of Eton College John Bird Sumner (1780–1862), bishop in the Church of England and Archbishop of Canterbury
Other John Robert Sumner (1850–1933), amateur footballer and 1873 FA Cup finalist John Sumner (tea merchant) (1856–1934) John S. Sumner (1876–1971), headed the New York Society for the Suppression of Vice John Sumner (climber) (1936–2004), British climber
See also Jack Sumner (1840–1907), American explorer