The Diomed Stakes is a Group 3 flat horse race in Great Britain open to horses aged three years or older. It is run at Epsom Downs over a distance of 1 mile and 113 yards (1,713 metres), and it is scheduled to take place each year in late May or early June. The event is named after Diomed, the inaugural winner of Epsom's most famous race, the Epsom Derby. It was established in 1971, although it could be regarded as a continuation of a previous event, the St James Stakes. The Diomed Stakes is now held on the second day of Epsom's two-day Derby Festival meeting, the same day as the Epsom Derby.

Records

Most successful horse (2 wins): Leading jockey (4 wins): Leading trainer (3 wins):

Winners