South Down is a parliamentary constituency in the United Kingdom House of Commons. The current MP for the constituency is Chris Hazzard of Sinn Féin.

Warrenpoint is a small port town and civil parish in County Down, Northern Ireland. It sits at the head of Carlingford Lough, south of Newry, and is separated from the Republic of Ireland by a narrow strait. The town is beside the village of Rostrevor and is overlooked by the Mournes and Cooley Mountains. Warrenpoint sprang up within the townland of Ringmackilroy, and is locally nicknamed "The Point", which also represents the town's full name in Irish, An Pointe".