Marilyn Nash was an American actress and casting director. She was best known for starring in the 1947 Charlie Chaplin film, Monsieur Verdoux.

She appeared in just one other film during her career, the 1951 science fiction adventure picture, Unknown World. She then switched to television and stage roles during the 1950s. Her television credits including Hopalong Cassidy in 1952 and Medic in 1955.

Her casting credits included The Great Smokey Roadblock, The Klansman and The Outlaw Josey Wales.

Nash died on October 6, 2011, at the age of 84