Killyleagh (/kɪliˈleɪ/; from Irish: Cill Ó Laoch, meaning "church of the descendants of Laoch") is a village and civil parish in County Down, Northern Ireland.
By Albert Bridge, CC BY-SA 2.0
It is on the A22 road from Downpatrick, on the western side of Strangford Lough. It had a population of 2,483 people in the 2001 Census. It is best known for its twelfth century Killyleagh Castle. Killyleagh lies within the Newry, Mourne and Down district.