Norton's Coin (16 March 1981 – 15 January 2001) was a British Thoroughbred racehorse, best known for his 100/1 win in the 1990 Cheltenham Gold Cup. He was an obscurely-bred gelding owned and trained in Wales by Sirrell Griffiths, a dairy farmer who had only two other horses in his stable. Norton's Coin was injured in winning the Gold Cup and won only once (a repeat win in the Silver Trophy) in his remaining eighteen races. He developed breathing problems and was retired in 1993. He spent his retirement on Griffiths' farm before dying from a suspected heart attack in January 2001.