Ajdal (2 April 1984 – August 1988) was an American-bred, British-trained Thoroughbred racehorse and sire. He was one of the leading European two-year-old of 1986, when he was unbeaten in three races including the Dewhurst Stakes. In the early part of 1987 he was aimed at the classics but after winning the Craven Stakes on his debut, he was beaten in the 2000 Guineas, Irish 2,000 Guineas and Epsom Derby. He was then switched to shorter distances and emerged as the best European sprinter of the year, winning the July Cup, William Hill Sprint Championship and Vernons Sprint Cup. He was then retired to stud but died after siring only one crop of foals.