Medora (1811–1835) was a British Thoroughbred racehorse and broodmare who won the classic Oaks Stakes at Epsom Downs Racecourse in 1814.

Unraced as a two-year-old, Medora produced her best form in the first half of 1814, she finished third in the inaugural 1000 Guineas, won the Oaks and then claimed two races at Royal Ascot.

[4] Medora began her racing career on 26 April in the sixth running of the 2000 Guineas Stakes over the Rowley Mile course at Newmarket Racecourse.

Despite being the only filly in the field and her lack of previous experience, she was made third favourite at odds of 7/1 against thirteen colts, but finished unplaced behind Mr Wyndham's Olive.

The Duke of Grafton's Wire and Lord Grosvenor's Zadora were made joint favourites, with Medora relatively unfancied at odds of 10/1 in a field of nine fillies.

On the 9 June she defeated two opponents in the Windsor Forest Stakes over the Old Mile course, despite carrying a five pound weight penalty for her Epsom success.

On 6 October, the Duke of Rutland was able to claim a 200 guinea prize without having to race his filly when Mr Wyndham withdrew his colt from a match against Medora over the Abington Mile course.

[11] Medora's only other run, after a break of more than five months, came on 18 October, when she ran in a division of the Oatlands Stakes, a handicap race over the Bunbury Mile.

[1] The most immediately successful of Medora's offspring was the filly Gulnare (foaled in 1824, by Smolensko), who won the Oaks and went on to produce the 2000 Guineas winner The Corsair.