USS Cero (SS-225), a Gato-class submarine, was the first submarine and second ship of the United States Navy to be named for the cero mackerel, a large food and game fish of the mackerel family, found chiefly in the West Indies. Cero's keel was laid down on 24 August 1942 by Electric Boat Co., Groton, CT. She was launched 4 April 1943 (sponsored by Mrs. D. E. Barbey) and commissioned 4 July 1943, Commander David C. White (Class of 1927) in command.