Mackworth Castle was a 14th- or 15th-century structure located in Derbyshire, at the upper end of Mackworth village near Derby. The home for several centuries of the Mackworth family, it was at some point reduced to the ruins of a gatehouse suggestive of a grand castle. A survey from 1911 suggested that though the gatehouse resembled a castle, the rest of the structure may have been more modest. The remains are part of a designated Scheduled Ancient Monument.