George Sumner may refer to: George Sumner (bishop of Guildford) (1824–1909) George R. Sumner, bishop of the Episcopal Diocese of Dallas George G. Sumner (1841–1906), American politician George Sumner (artist) (born 1940), American oil painter and environmental activist George Sumner (botanist) (1793–1855), American botanist Heywood Sumner (George Heywood Maunoir Sumner, 1853–1940), English painter, illustrator and craftsman George Holme Sumner (1760–1838), British member of parliament See also George Sumner House, Montreal on List of castles in Canada George Sumner House, Massachusetts