USNS Mission San Carlos (T-AO-120)
 SS Mission San Carlos was a Type T2-SE-A2 tanker built for the United States Maritime Commission during World War II. After the war she was acquired by the United States Navy as USS Mission San Carlos (AO-120). Later the tanker transferred to the Military Sea Transportation Service as USNS Mission San Carlos (T-AO-120). She was a member of the Mission Buenaventura-class oiler and was one of two U.S.