Ard Patrick (1899–1923) was an Irish-bred, British-trained Thoroughbred racehorse and sire. One of the leading two-year-olds of 1901, he improved in 1902 to win The Derby, defeating the filly Sceptre. He returned from Injury problems to record his most important success when he defeated Sceptre and the Derby winner Rock Sand in the 1903 Eclipse Stakes at Sandown Park Racecourse. He was then retired from racing and exported to Germany where he became a successful sire of winners.

The Derby Stakes, also known as the Derby or the Epsom Derby, is a Group 1 flat horse race in England open to three-year-old colts and fillies. It is run at Epsom Downs Racecourse in Surrey on the first Saturday of June each year, over a distance of one mile, four furlongs and 10 yards, or about 1½ miles. It was first run in 1780.