Castle Combe is a village and civil parish within the Cotswolds Area of Outstanding Natural Beauty in Wiltshire, England. The village is around 5 miles (8 km) north-west of Chippenham. A castle once stood in the area, but was demolished centuries ago.
The village is in two parts: one is in the narrow valley of By Brook, while Upper Castle Combe is on higher land to the east, on the B4039 road connecting Chippenham and Chipping Sodbury. No new houses have been built in the historic area since about 1600. South of the upper village is the Castle Combe motor racing circuit.