Mark Rydell (born March 23, 1934 in New York City) is an American actor, film director and producer.
Rydell began his career as an actor and first became known for his role as Walt Johnson on The Edge of Night and as Jeff Baker on As the World Turns, which he played from 1956 to 1962. He won plaudits for his role of violent Jewish mob kingpin, Marty Augustine, in Robert Altman's The Long Goodbye (1973). His most recent significant film role was in Woody Allen's Hollywood Ending.
As a director, Rydell's credits include The Reivers (1969), The Cowboys (1972), Cinderella Liberty (1973), The Rose (1979), On Golden Pond (1981, for which he received an Oscar nomination as Best Director), The River (1984), For the Boys (1991) and Intersection (1994). In 2006, Rydell directed the movie Even Money which starred Kim Basinger, Forest Whitaker, and Danny DeVito.