Tolomeo (1980 – circa 2000) was an Irish-bred, British-trained Thoroughbred racehorse and sire. He is best known for his upset victory in the 1983 Budweiser Million, when he became the first European horse to win the race and the first British-trained horse to win a major race in the United States for fourteen years. He recorded only one other success (in a minor event for two-year-olds) in a seventeen race career but was placed in many major European races including the 2000 Guineas, Eclipse Stakes, Sussex Stakes, Benson and Hedges Gold Cup, Champion Stakes and King George VI and Queen Elizabeth Stakes. After his retirement from racing he stood as a breeding stallion in Australia with moderate results.