Organ is a surname. Notable people with the surname include:
Bryan Organ (born 1935), English painter Diana Organ (born 1952), British politician Ellen Organ (1903–1908), Irish child venerated by some Roman Catholics Felix Organ (born 1999), English cricketer Gerry Organ (born 1944), Canadian football player Lawrence P. Organ (born 1959), Canadian businessman Marjorie Organ (1886–1930), Irish-born American illustrator, cartoonist, caricaturist and model for her painter husband Robert Henri Michael Organ (born 1956), Australian politician Michael Organ (drummer) (born 1953), American drummer Stuart Organ (1951–2024), British actor Tommy Organ (born 1963), American musician Tyne-James Organ (born 1995), Australian alternative rock singer and songwriter