USNS PFC Dewayne T. Williams (T-AK-3009) is a dry cargo ship, one of the maritime prepositioning ships of the US Navy. She is named after Medal of Honor recipient and US Marine Dewayne T. Williams. She was built by General Dynamics Quincy Shipbuilding Division, Quincy, Massachusetts, and acquired by the Navy under a long-term charter from 6 June 1985. The navy placed her under the direction of the Military Sealift Command as MV PFC Dewayne T. Williams (AK-3009), and assigned to be operated by American Overseas Marine Corporation. She was one of the ships assigned to Maritime Prepositioning Program Squadron One under the operational control of MSC Europe, operating in the Mediterranean.