USS Coronet (SP-194) was an armed motorboat that served in the United States Navy as a patrol vessel from 1917 to 1919. Coronet was built as a civilian motorboat in 1905 at Morris Heights, New York. The U.S. Navy acquired her on 20 July 1917 for use as a patrol boat during World War I. She was commissioned on 24 September 1917 as USS Coronet (SP-194) with Ensign J. R. Smith, USNRF, in command. Coronet was assigned to the 3rd Naval District, where she performed patrol duty for the remainder of World War I. On 5 August 1919, Coronet was stricken from the Navy List and sold.