Sunningdale is a large village with a retail area and a civil parish in the Royal Borough of Windsor and Maidenhead. It takes up the extreme south-east corner of Berkshire, England. It has a railway station on the (London) Waterloo to Reading Line and is adjoined by green buffers including Sunningdale Golf Club and Wentworth Golf Club. Its northern peripheral estates adjoin Virginia Water Lake.

Sunninghill is a village in the civil parish of Sunninghill and Ascot in the Royal Borough of Windsor and Maidenhead in the English county of Berkshire.