USS Guardfish (SSN-612)
 USS Guardfish (SSN-612) a Thresher-class submarine was the second ship of the United States Navy to be named for the guardfish a voracious green and silvery fish with elongated pike-like body and long narrow jaws. The contract to build her was awarded to New York Shipbuilding Corporation in Camden New Jersey on 9 June 1960 and her keel was laid down on 28 February 1961. She was launched on 15 May 1965 sponsored by Mrs. Kenneth E.