Lady Capulet (foaled 3 April 1974) was an American-bred, Irish-trained Thoroughbred racehorse and broodmare. Her brief track career consisted of only three races in May and June 1977. She won the Irish 1000 Guineas on her debut before finishing second in the Coronation Stakes and third in the Pretty Polly Stakes. She was retired from racing to become a broodmare and made a major impact as the dam of the leading stallion El Prado.