USS Bumper (SS-333), a Balao-class submarine, was a ship of the United States Navy named for the bumper, a small fish of the North and South Atlantic Ocean. Bumper (SS-333) was launched 6 August 1944 by Electric Boat Co., Groton, Conn.; sponsored by Mrs. Joseph W. Williams, Jr., wife of the prospective commanding officer; and commissioned 9 December 1944, Commander J. W. Williams, Jr., in command.