Barsalloch Fort is a promontory fort on the edge of a cliff overlooking Luce Bay, located near the village of Port William, Dumfries and Galloway.
The fort is irregular in shape, but measures approximately 44m from north to south and 42m from east to west. It is defended on three sides by a ditch 10m wide and 3.5m deep and an earthen rampart about 1m high on either side with an entrance to the north east. The fort probably housed one or more large round houses for a single extended Novantae family.
Little is known about the Novantae people, and their only historical reference is a brief mention in Ptolemy's Geography. The nearby Rispain Camp was also likely a Novantae farmstead.
The fort has never been excavated and is now in the care of Historic Scotland.