Killough
| Killough 
 | |
|---|---|
| Location within County Down | |
| Population | 845 (2001 Census) | 
| District | 
 | 
| County | |
| Country | Northern Ireland | 
| Sovereign state | United Kingdom | 
| Post town | DOWNPATRICK | 
| Postcode district | BT30 | 
| Dialling code | 028 | 
| UK Parliament | |
| NI Assembly | |
Killough (/kɪˈlɒx/ ki-LOKH; from Irish Cill Locha, meaning 'church of the loch') is a village and townland in County Down, Northern Ireland. It lies on the Irish Sea shore near Ardglass, five miles southeast of Downpatrick. It is a conservation area notable for its sycamore-lined main street. In the 2001 Census it had a population of 845 people.