The USS Patuxent (AV-4) was a seaplane tender of the United States Navy, launched on 15 March 1943. She was commissioned on 15 December 1943 and served primarily during World War II, providing support for seaplane operations in the Pacific Theater. The ship was designed to service and maintain seaplanes, playing a crucial role in reconnaissance and anti-submarine warfare. After the war, the USS Patuxent continued to serve in various capacities, including training and logistics support. She was decommissioned on 15 January 1955 and later struck from the Naval Vessel Register. The ship was sold for scrapping in 1970, marking the end of her service.