William Forrest (October 10, 1902 – January 26, 1989) was an American theatre, film, and television actor.

Forest attended Princeton University, where he was a star in athletics. His acting career began in 1938 at the Pasadena Playhouse, and he appeared in more than 250 films between 1939 and 1977. He was born in Cambridge, Massachusetts, and died in Santa Monica, California, from heart failure.