Ruth Williams may refer to: Ruth Williams (baseball) (1926–2005), baseball pitcher Ruth J. Williams (born 1955), Australian-American mathematician Ruth Williams (badminton) (born 1989), Jamaican badminton player Ruth C. Williams (1897–1962), Australian writer for children Ruth Margaret Williams, British mathematician Ruth Cupp (1928–2016), née Williams, American lawyer and legislator Ruth Williams Khama (1923–2002), First Lady of Botswana from 1966 to 1980 Ruth Williams-Simpson (born 1949), Jamaican sprinter Ruth Williams, character in 1940 American film noir Babies for Sale
See also Linda Ruth Williams (born 1961), professor of film studies