USS Sea Hawk (SP-2365) was an armed motorboat that served in the United States Navy as a patrol vessel from 1917 to 1919.

The U.S. Navy acquired her from Arthur Winslow of Boston, Massachusetts, on 20 October 1917 for World War I service as a patrol boat.

Sea Hawk initially served as a patrol boat in the 1st Naval District, operating in the Boston area.

Due to an urgent need for craft such as Sea Hawk at Brest, France, an order dated 14 October 1918 went out from Washington, D.C., to Boston, directing the Commandant of the 1st Naval District to ready six section patrol boats -- USS Commodore, Cossack, War Bug, Sea Hawk, Kangaroo, and SP-729—to be shipped to France as deck cargo along with spare parts to keep them operational.

However, this proposed movement appears to have been canceled, probably because of the armistice with Germany of 11 November 1918 that ended World War I and eliminated the need for more U.S. Navy patrol craft in Europe.