Sunninghill and Ascot is a civil parish in the Royal Borough of Windsor and Maidenhead and takes up most of the south-east corner of the English county of Berkshire.
It covers the town of Ascot, and the village of Sunninghill including the neighbourhoods Cheapside and South Ascot. As well as part of the village of North Ascot. As one of the civil parishes in England its powers are limited to advisory planning matters, paths, parks, community halls and organised sports amenities.