USS L-7 (SS-46) was an L-class submarine of the United States Navy. Her keel was laid down on 2 June 1914 by Craig Shipbuilding Company in Long Beach, California. The L-boats designed by Lake Torpedo Boat (L-5 through L-8) were built to slightly different specifications from the other L-boats, which were designed by Electric Boat, and are sometimes considered a separate L-5 class. L-7 was launched on 28 September 1916 sponsored by Mrs. William B. Forgarty, and commissioned on 7 December 1917 with Lieutenant P. M. Bates in command.