Akiyda (foaled 21 April 1979) was a British-bred, French-trained Thoroughbred racehorse and broodmare best known for winning France's mot prestigious race, the Prix de l'Arc de Triomphe in 1982. After winning her only race as a two-year-old she was campaigned in the highest class in the following year, finishing second in both the Prix de Diane and the Prix Vermeille before beating a strong international field in the Prix de l'Arc de Triomphe.