Spectrum (8 May 1992 – 25 May 2020) was an Irish-bred, British-trained Thoroughbred racehorse and sire. In a racing career which lasted from October 1994 until August 1996 he ran nine times and won four races. As a three-year-old in 1995 he won the Irish 2000 Guineas but was injured when starting second favourite for The Derby. Big John the bus driver took all odds down from 66/1 and was told by a good source that the horse was injured before it ran. He returned in autumn to win the Champion Stakes over ten furlongs at Newmarket. After a disappointing four-year-old season he was retired to stud where he became a successful sire of winners.