Ballykinler, often transcribed as Ballykinlar, is a village and civil parish in County Down, Northern Ireland. It lies 12 kilometres south west of Downpatrick, in the parish of Tyrella and Dundrum. In the 2001 census it had a population of 348 people. It is within the Newry, Mourne and Down area and runs parallel to the Irish Sea coast. Located within the Lecale Coast Area of Outstanding Natural Beauty, the village is surrounded by low drumlins and marshes. It is also the site of a former British Army base known as Abercorn Barracks.

County Down is one of the six counties of Northern Ireland, one of the nine counties of Ulster and one of the traditional thirty-two counties of Ireland. It covers an area of 961 sq mi (2,490 km2) and has a population of 552,261. It borders County Antrim to the north, the Irish Sea to the east, County Armagh to the west, and County Louth across Carlingford Lough to the southwest.