| Diomed | |
|---|---|
 Diomed "the Marvel" | |
| Sire | Florizel |
| Grandsire | Herod |
| Dam | Mare (1763) by Spectator |
| Damsire | Spectator |
| Sex | Stallion |
| Foaled | 1777 |
| Died | 1808 (aged 30–31) |
| Country | Kingdom of Great Britain |
| Colour | Chestnut |
| Breeder | Honorable Richard Vernon of Newmarket |
| Owner | Sir Charles Bunbury, 6th Baronet |
| Record | 20: 11-5-3 |
| Major wins | |
| Epsom Derby (1780) | |
| Honours | |
| Diomed Stakes at Epsom Downs Racecourse | |
| Last updated on August 24, 2007 | |
Diomed (1777–1808) was an English Thoroughbred race horse who won the inaugural running of the Epsom Derby in 1780. Sold and imported to Virginia, he was subsequently a successful sire in the United States after the American Revolutionary War.