Boston (1833–1850), was an outstanding chestnut Thoroughbred racehorse and a Leading sire in North America three times from 1851 to 1853. He started in about 45 races, winning 40 of these, including 15 in succession. Boston was later one of the initial inductees into the Hall of Fame.
He was a chestnut stallion with a white blaze on his nose and he was foaled in Richmond, Virginia. Boston was bred by the Virginia attorney John Wickham (who had been Aaron Burr's counsel in his trial for treason). He was by the very good racehorse, Timoleon (by the great Sir Archy), his dam was Sister to Tuckahoe by Ball’s Florizel. Boston was inbred to Diomed in the third generation (3m x 3f). He was a half-brother to the Shylock mare who founded a successful family. They were from the number 40 family which traced back to the imported mare, Kitty Fisher.
As a two-year-old, Boston was lost by his breeder in a card game and was given to Wickham's friend Nathaniel Rives, of Richmond to repay his debt of $800. He was named after a popular card game and later given the nickname of "Old Whitenose". Boston had a wilful temperament and was difficult to train. Sent to the stable of John Belcher, and then to the trainer L. White, and then back to Belcher, White said, "The horse should either be castrated or shot—preferably the latter."