Donovan (1886–1905) was a British Thoroughbred racehorse and sire. In a career that lasted from 1888 to 1889, he ran twenty-one times and won eighteen races. He was the leading British two-year-old of 1888 when he won eleven of his thirteen starts. At the age of three Donovan won The Derby and the St Leger: he failed to win the English Triple Crown owing to a narrow and probably unlucky defeat in the 2000 Guineas. He set a world record by earning a total of £55,443 in win prize money. Donovan was a modest success as a stallion. He died after being injured in an accident in 1905.