Rossbrin Cove is a sheltered natural harbour on the Mizen Peninsula in West Cork, situated between Ballydehob and Schull. It is reached by turning south off the R592 roughly 3 km from Ballydehob and following the road down to the water's edge.

A boatyard operates at the western end of the cove, and the surrounding waters are considered prime sailing territory, with numerous harbours and islands within easy reach along this stretch of the southwest coast.

The cove sits within a historically rich landscape.

Rossbrin Castle, a 15th-century tower house, overlooks the inlet and was once the seat of Finghín O'Mahony, known as the Scholar Prince of Rossbrin, who drew wealth from fishing dues paid by Spanish and French fishermen.

Waymarked walking trails thread through the area, offering views back to the castle and out across Roaringwater Bay.