USS Numitor (ARL-17) was to be laid down as an LST-542-class tank landing ship but was instead laid down as one of 39 Achelous-class repair ships landing craft repair ships built for the United States Navy during World War II. Named for Numitor (in Roman mythology, King Numitor of Alba Longa, son of Procas, and the father of Rhea Silvia), she was the only US Naval vessel to bear the name.