a sea-port and market-town of Ireland, county of Antrim, on the N. shore of Lough Larne, 18 miles N.N.E. from Belfast, of which it is an out-port. The manufactures are cotton, sails, ropes, and leather; and the trade carried on is almost exclusively in slate, lime, timber, and coals. The chief object of interest is the ruined castle of Oldercleet, erected in the reign of Henry III. It is the seat of a poor-law union, and of a petty sessions court. Edward Bruce landed there in 1315. Pop. (1851) 3074.