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.

Doncaster is a city in South Yorkshire, England. Named after the River Don, it is the administrative centre of the City of Doncaster metropolitan borough, and is the second largest settlement in South Yorkshire after Sheffield. Noted for its horse racing and railway history, it is situated in the Don Valley on the western edge of the Humberhead Levels and east of the Pennines. The built up area had a population of 87,455 at the 2021 census, whilst the wider metropolitan borough had a population of 308,100.