USS St. Sebastian (SP-470)
 USS St. Sebastian (SP-470) was a United States Navy patrol vessel in commission from 1917 to 1919.St. Sebastian was built as a private motorboat of the same name by Captain R. D. Hardee at St. Sebastian Florida. On 25 June 1917 the U.S. Navy acquired her from her owner J. W. Taylor of Marathon Florida for use as a section patrol vessel during World War I. She was commissioned as USS St. Sebastian (SP-470) on 9 August 1917. St.