The fifth USS Ranger (SP-237) was United States Navy patrol vessel in commission from 1917 to 1919. Ranger was built as the steam-driven, steel-hulled yacht Thomas Slocum by at City Island, Bronx, New York, in 1910. She later was renamed Ranger. The U.S. Navy purchased Ranger from her owner, T.W. Slocum of New York City, on 22 June 1917 for World War I service as a patrol vessel and commissioned her as USS Ranger (SP-237) on 9 October 1917. Assigned to the 3rd Naval District, Ranger operated as a section patrol craft in the New York City area. She was renamed USS SP-237 in 1918.