The 1821 Derby at Epsom, or Horse Race (Course de chevaux, traditionally called Le Derby de 1821 à Epsom) is an 1821 painting by the French artist Théodore Géricault in the Louvre Museum, showing The Derby of that year.

Fascinated by horses, Géricault made many paintings portraying them.

Working for a while at the imperial stables at Versailles, he had the opportunity to study them in detail and made numerous portraits of horses.

It was painted for the English horse dealer Adam Elmore.

This was conclusively demonstrated by Eadweard Muybridge in 1878, with high-speed photography showing that galloping horses are airborne when their legs are beneath the body, just before the hind legs touch ground.