Operation Pacific is a 1951 black-and-white World War II submarine war drama from Warner Bros. Pictures, produced by Louis Edelman, and written as well as directed by George Waggner. John Wayne and Patricia Neal star and Ward Bond and Philip Carey play supporting roles. Much of the film is set aboard a Gato-class submarine. The technical advisor was World War II Admiral Charles A. Lockwood, Commander, Submarine Forces, Pacific (COMSUBPAC).