Ralph Thomas (disambiguation)

Ralph Thomas (1915–2001) was an English film director.

Ralph Thomas may also refer to:
 * Ralph Thomas (American football) (born 1929), American football player
 * Ralph Thomas (Australian footballer) (born 1952), Australian footballer for Footscray
 * Ralph W. Thomas (1862–1920), New York politician
 * Ralph L. Thomas (born 1939), Canadian film director
 * Ralph Thomas (activist) (born 1938), Canadian activist
 * Ralph Thomas (diplomat), Jamaican banker, academic and diplomat