Ensign Pulver is a 1964 American Technicolor comedy drama film in Panavision and a sequel to the 1955 film Mister Roberts. The film stars Robert Walker Jr., Burl Ives, Walter Matthau and Tommy Sands and features Millie Perkins, Larry Hagman, Kay Medford, Peter Marshall, Jack Nicholson, Richard Gautier, George Lindsey, James Farentino and James Coco.

The film is directed and co-written by Joshua Logan, who had directed and co-written the 1948 Mister Roberts stage play on Broadway, and also shot scenes for the 1955 film after director John Ford fell ill.

The story concerns the U.S.S. Reluctant, a cargo ship in the waning days of World War II that is at anchor beside a tropical island. Several of the film's events—such as attacking the Captain while he is watching a film, and one of the sailors trying to obtain compassionate leave to deal with the funeral of his child—are taken from Thomas Heggen's original 1946 novel Mister Roberts. The characters of Pulver, Doc and several crewmen return from the first film, but played by different actors.