USS N-1 (SS-53) was the lead ship of her class of coastal defense submarine of the United States Navy. Her keel was laid down on 26 July 1915 by Seattle Construction and Drydock Company in Seattle, Washington. She was launched on 30 December 1916 sponsored by Mrs. Guy E. Davis, and commissioned on 26 September 1917 with Lieutenant George A. Trever in command.