Katharine Juliet Ross (born January 29, 1940) is an American film and stage actress and author. She had starring roles as Elaine Robinson in The Graduate (1967), for which she received a nomination for the Academy Award for Best Supporting Actress; as Etta Place in Butch Cassidy and the Sundance Kid (1969), for which she won a BAFTA Award for Best Actress; and as Joanna Eberhart in The Stepford Wives (1975). She won a Golden Globe for Voyage of the Damned (1976).