Kilkeel (from Irish: Cill Chaoil, meaning "church of the narrow") is a small town, civil parish and townland (of 554 acres) in County Down, Northern Ireland. It lies within the historic barony of Mourne. Kilkeel town is the main fishing port on the Down coast, and its harbour houses one of the largest fishing fleets in Ireland. It had a population of 6,338 people according to the 2001 Census. The town contains the ruins of a 14th-century church and fort, winding streets and terraced shops.