The Doncaster Cup is a Group 2 flat horse race in Great Britain open to horses aged three years or older. It is run at Doncaster over a distance of 2 miles 1 furlong and 197 yards, and it is scheduled to take place each year in September.

Touchstone (1831–1861) was a British bred Thoroughbred racehorse and a leading sire in Great Britain and Ireland on four occasions. He was owned and bred by Robert Grosvenor, 1st Marquess of Westminster, who bought him for the low price, at the time, of 600 guineas at the insistence of his chief stud groom Mr. Thomas Nutting.