The first USS Rainier was a United States Navy patrol vessel in commission from 1917-1919. Rainier, originally named Patrol and then Angel, was built as a civilian schooner in 1917 at Portland, Oregon. The U.S. Navy purchased her on 7 June 1917 for use as a patrol vessel during World War I. She was commissioned on 30 July 1917 at Mare Island Navy Yard at Vallejo, California, as USS Rainier. She never received a section patrol (SP) number.