Katharine Juliet Ross (born January 29, 1940) is an American film and stage actress. Trained at the San Francisco Workshop, she came to prominence as Elaine Robinson in the 1967 film The Graduate, for which she won a Golden Globe award and received an Academy Award nomination.
Her first television role was in Sam Benedict in 1962. In 1964, Ross appeared in episodes of Arrest and Trial, The Virginian and Gunsmoke, and made her first film, Shenandoah, followed by a starring role in Mister Buddwing with MGM in 1965. In 1966, she appeared in the episode "To Light a Candle" of Barry Sullivan's NBC Western The Road West.