Alydeed (foaled 1989) is a Canadian Thoroughbred racehorse. Bred by Anderson Farms of St. Thomas, Ontario, he was out of the unraced mare Bialy, a daughter of U.S. Racing Hall of Fame inductee, Alydar. A grandson of British Triple Crown winner Nijinsky, he was sired by Shadeed, the 1985 British Champion Miler and winner of the British Classic, the 2,000 Guineas.