USS Spearfish (SS-190), a Sargo-class submarine, was the only ship of the United States Navy to be named for the spearfish, any of several large, powerful, pelagic fishes of the genus Tetrapturus allied to the marlins and sailfishes. Her keel was laid down on 9 September 1937 by the Electric Boat Company in Groton, Connecticut. She was launched on 29 October 1938 sponsored by Mrs. Lawrence Y. Spear, and commissioned on 17 July 1939 with Lieutenant C.E. Tolman, Jr., in command.