Headstone Manor is a 14th-century Grade I listed moated manor house in Headstone, England, and today a part of the Headstone Manor and Museum. Headstone Manor & Museum is a museum of the site itself as well as Harrow more generally. It also hosts a programme of talks, tours, events and family activities for visitors. Headstone Manor & Museum is open Tuesday to Sunday, all year round. Entry to the site and the museum is free.