Castle Combe Castle stood to the north of the village of Castle Combe, Wiltshire, England.
The castle was a medieval motte and bailey castle standing on a limestone spur overlooking the Bybrook River. It was probably built by Reginald de Dunstanville, 1st Earl of Cornwall in the 12th century and was unusual in that it had a keep with at least four and possibly five baileys. Earthworks and some stonework remain.
Since 1981 the site has been a scheduled ancient monument and is described in the National Heritage List for England as "Motte and bailey castle 600 meters north of Castle Combe".