Shadayid (10 April 1988 – April 2002) was an American-bred, British-trained Thoroughbred racehorse and broodmare. In a racing career which lasted from June 1990 to November 1991 she ran eleven times winning five races and being placed five times. Shadayid was one of the leading two-year-old fillies in Europe in 1990, winning all three of her races including the Group One Prix Marcel Boussac at the Longchamp.