USS N-5 (SS-57) was a N-class coastal defense submarine of the United States Navy. Her keel was laid down on 10 April 1915 by Lake Torpedo Boat Company in Bridgeport, Connecticut. The N-boats built by Lake had slightly different specifications from the ones built by Seattle Construction and Drydock and are sometimes considered a separate class. N-5 was launched on 22 March 1917 sponsored by Mrs. George Bevans, and commissioned at New York Navy Yard on 13 June 1918 with Lieutenant Commander Morris D. Gilmore in command.