USS Nestor (ARB-6) was one of twelve Aristaeus-class battle damage repair ships built for the United States Navy during World War II. Named for Nestor (in Greek mythology, the son of Neleus, the King of Pylos and Chloris), she was the only U.S. Naval vessel to bear the name. Originally laid down as USS LST-518 on 13 September 1943 by the Chicago Bridge and Iron Company of Seneca, Illinois; launched sponsored by Miss Rita Jenkins; converted by Maryland Dry Dock Company of Baltimore, Maryland; and commissioned 24 June 1944 with Commander Frank W. Parsons, USNR, in command.