Barefoot (1820–1840) was a British Thoroughbred racehorse and sire best known for winning a chaotic and controversial race for the classic St Leger Stakes in 1823.

Barefoot was later sold to William Vane, 1st Duke of Cleveland and competed for three further seasons with mixed results, his best efforts being wins in the Lancaster Gold Cups of 1825 and 1826.

[7] He returned to York in August when he won a ten furlong sweepstakes for three-year-olds "very easy",[8] beating Mr Richardson's unnamed colt at odds of 4/5.

[10] Thirteen days after his win at Pontefract, Barefoot was one of twenty-seven colts and fillies to contest the Great St Leger at Doncaster Racecourse.

Twenty three horses ran the complete course, with the Rosanne colt "winning" by a head from Barefoot (who appeared unlucky in running)[11] with the outsider Comte d'Artois in third.

[15] At the end of the season, Lord Darlington issued a challenge to the owners of the Derby winner Emilius for a 2000 guinea match race between their horse and Barefoot, but the offer was not accepted.

[17] Barefoot eventually began his third season with three engagements at Royal Ascot in June, beginning with a walkover in the one and a half mile Swinley Stakes which took his winning run to seven.

On the following afternoon he started 4/7 favourite for the two and a half mile Ascot Gold Cup, but was defeated by Lord George Cavendish's colt Bizarre, his only opponent.

A day later, Barefoot turned out again for the Wokingham Stakes a six furlong handicap race and started favourite despite carrying top weight of 135 pounds.

[23] Barefoot's final season began on 29 March when he finished unplaced behind Lord Kelburne's colt Dare-Devil in the Craven Stakes at Catterick Bridge Racecourse.

[25] On 17 May at Manchester Racecourse Barefoot carried top weight of 126 pounds to victory in a two-mile handicap, and in June he recorded his last win when he took a second Lancaster Gold Cup.