Payton d'Oro (foaled 2006 in Kentucky) is an American Thoroughbred racehorse. She has won four of her last five outings. She was a September Keeneland Sales graduate that sold for only $35,000 in September 2007 as a yearling. The daughter of Medaglia d'Oro will best be remembered for posting a 1¼-length score in the mile and an eighth Grade II $250,000 Black-Eyed Susan Stakes at Pimlico Race Course on May 15, 2009.