Flying Fox (1896–1911) was a champion British Thoroughbred racehorse who won the 1899 English Triple Crown and was the leading sire in France three times.

Their victories made owner Hugh Grosvenor, 1st Duke of Westminster, the only person to own two English Triple Crown winners.

Standing at stud at Haras de Jardy, Flying Fox enjoyed considerable success and was the leading sire in France three times, with his progeny earning £203,400 in prize money.

His skeleton is at the horse museum at Château de Saumur with a memorial at Eaton Stud in Cheshire, North West England.

[6] A 24-class sloop was also named for the horse; HMS Flying Fox was launched in 1918 and served for only a few years before becoming a training ship alongside in Bristol.

When the Royal Naval Reserve unit headquartered in her moved ashore, the new establishment was also named HMS Flying Fox and remains active to this day.