Rainhill is a village and civil parish in the Metropolitan Borough of St Helens, Merseyside, England. The population at the 2011 census was 10,853.

The Metropolitan Borough of St Helens is a local government district with borough status in Merseyside, North West England. The borough is named after its largest settlement, St Helens, but also includes neighbouring towns and villages such as Earlestown, Rainhill, Eccleston, Clock Face, Haydock, Billinge, Garswood, Rainford and Newton-le-Willows.