Naworth Castle, also known as, or recorded in historical documents as "Naward", is a castle in Cumbria, England near the town of Brampton.
The castle possibly originated in the late 13th century, consisting of a square keep and bailey. It was first mentioned in 1323 and in 1335 a licence to crenellate was granted to Ranulph (or Ralph) de Dacre. Residential quarters were added in the early 16th century by Thomas, Lord Dacre and there were further additions in 1602, for Lord William Howard. It is likely that an 18th century walled garden overlies the filled moat.