USS Raven III (SP-103), later USS SP-103, was an armed motorboat that served in the United States Navy as a patrol vessel from 1917 to 1919. Raven III was built as a civilian motorboat in 1916 at by the Purdy Boat Company at Miami, Florida. The U.S. Navy purchased her from Purdy on 14 June 1917 for use as a patrol boat during World War I. Purdy delivered Raven III to the Navy on 28 June 1917, and she was commissioned on 5 October 1917 at Key West, Florida, as USS Raven III (SP-103) with Motor Machinist's Mate 2nd Class Gordon Stanford, USNRF, in command.