Killyleagh

thumb|right|250px|Killyleagh Castle Killyleagh (; ) is a village and civil parish in County Down, Northern Ireland. It is on the A22 road between Belfast and Downpatrick, on the western side of Strangford Lough. It had a population of 2,787 people in the 2021 Census. It is best known for its twelfth-century Killyleagh Castle. Killyleagh lies within the Newry, Mourne and Down district.

castle in the village of Killyleagh, Northern Ireland