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.

Doncaster Racecourse is a racecourse in Doncaster, South Yorkshire, England. It hosts two of Great Britain's 36 annual Group 1 flat races, the St Leger Stakes and the Racing Post Trophy.