The Wackiest Ship in the Army is an American 1960 Eastmancolor CinemaScope comedy-drama war film directed by Richard Murphy and starring Jack Lemmon, Ricky Nelson, and Chips Rafferty. It was filmed at Pearl Harbor and Kauai. The story is a dramatized, fictionalized account of a real ship known as the USS Echo. It was a sailing vessel that originated in New Zealand and became part of the United States Navy during World War II.