Dinnington is a town in the civil parish of Dinnington St John's, in the Metropolitan Borough of Rotherham, in South Yorkshire, England. It is near to the towns of Worksop and Rotherham and cities of Sheffield and Doncaster. Historically part of the West Riding of Yorkshire, Dinnington is the principal settlement in the civil parish of Dinnington St John's, which also includes the small satellite hamlets of Throapham and St John's.