Easter Sun (10 April 1977 – ca. 1988) was a British Thoroughbred racehorse and sire. In his first three seasons he showed good form in handicap races but appeared to be well below top class. In 1982, at the age of five, he showed remarkable improvement (16 pounds on Timeform ratings) and won the Aston Park Stakes before recording his biggest win in the Coronation Cup. He never won again but was placed in several good races before being retired at the end of the 1983 season. He made no impact as a breeding stallion in a brief stud career.