Town (pop., 1991: 52,437), seat of North Down district, Northern Ireland.
It lies on the southern shore of Belfast Lough, 12 mi (19 km) northeast of Belfast . St. Comgall founded a monastery at Bangor 0441; 555, which became a celebrated seat of learning. The town was sacked by the Danes in the 9th century; it was partially rebuilt by St. Malachy in the 12th century. It is now a seaside resort.