Philip Ives Dunne (February 11, 1908 – June 2, 1992) was an American screenwriter, film director and producer, who worked prolifically from 1932 until 1965. He spent the majority of his career at 20th Century Fox. He crafted well regarded romantic and historical dramas, usually adapted from another medium. Dunne was a leading Screen Writers Guild organizer and was politically active during the "Hollywood Blacklist" episode of the 1940s–1950s. He is best known for the films How Green Was My Valley (1941), The Ghost and Mrs. Muir (1947), The Robe (1953) and The Agony and the Ecstasy (1965).[1]

Dunne received two Academy Award nominations for screenwriting: How Green Was My Valley (1941) and David and Bathsheba (1951). He also received a Golden Globe nomination for his 1965 screen adaptation of Irving Stone's novel The Agony and the Ecstasy, as well as several peer awards from the Writers Guild of America (WGA), including the Laurel Award for Screenwriting Achievement.

Many notable directors worked with Dunne's screenplays, including Carol Reed, John Ford, Jacques Tourneur, Elia Kazan, Otto Preminger, Joseph L. Mankiewicz, and Michael Curtiz, among others.