USS Lomado (SP-636) was a United States Navy patrol vessel in commission from 1917 to 1919. Lomado was built as a private motor yacht of the same name by F. S. Nook at East Greenwich, Rhode Island, in 1916. On 18 May 1917, the U.S. Navy purchased her from Frederick T. Rogers of Providence, Rhode Island, for use as a section patrol boat during World War I. Rogers delivered her to the Navy on 29 May 1917, and she was commissioned as USS Lomado (SP-636) on 1 June 1917 with Boatswain's Mate E. S. Angell, USNRF, in command. Lomado was enrolled in the Naval Coast Defense Reserve on 5 June 1917.