Frederick (1826–1837) also known as "Frederic", was a British Thoroughbred racehorse and sire. In a career that lasted from June 1829 to August 1831 he ran five times and won once. His only win came on his racecourse debut, when he recorded an upset victory in the 1829 Derby ridden by his sixty-year-old trainer John Forth. Frederick failed to reproduce his Derby-winning form, finishing no better than third in four subsequent races.

The Derby Stakes, also known as the Derby or the Epsom Derby, is a Group 1 flat horse race in England open to three-year-old colts and fillies. It is run at Epsom Downs Racecourse in Surrey on the first Saturday of June each year, over a distance of one mile, four furlongs and 10 yards, or about 1½ miles. It was first run in 1780.