Brough Castle is a ruined castle near Brough, Caithness. It is believed to date from the 12th to 14th centuries.

The foundations of the castle are on the landward end of a long rocky promontory about 1⁄4 mile (400 m) north of the east end of the hamlet of Brough. A trench some 40 feet (12 m) wide and 10 to 12 feet (3 to 4 m) deep has been dug across the neck and on either side of the rock; in rear of it has been a range of buildings separated by a narrow courtyard or passage. The keep is not recognisable. The promontory tails away seawards to a shelf of rock. There appears to be no history of this castle.

• Castle of Old Wick

This article incorporates text from this source, which is in the public domain: Third Report and Inventory of Monuments and Constructions in the County of Caithness, 1911

• Canmore record
• Caithness Castles: Brough Castle, Caithness

58°38′50″N 3°19′52″W / 58.6473°N 3.3312°W / 58.6473; -3.3312