|Cullaville shown within Northern Ireland|
|Population||400 (2001 Census)|
|Irish grid reference|
|• Belfast||56 mi (90 km)|
|Sovereign state||United Kingdom|
|EU Parliament||Northern Ireland|
Cullaville or Culloville (from Irish: Baile Mhic Cullach, meaning "MacCullach's townland") is a small village and townland near Crossmaglen in County Armagh, Northern Ireland. It is the southernmost settlement in the county and one of the southernmost in Northern Ireland, straddling the Irish border. In the 2001 Census it had a population of 400 people. The village is on a busy crossroads on the main Dundalk to Castleblaney road (the A37 in Northern Ireland and N53 in the Republic); three of the roads lead across the border and the fourth leads to Crossmaglen.
- On 29 March 1922, during the Irish War of Independence, Irish Republican Army (IRA) volunteers ambushed and shot dead two Royal Irish Constabulary men (Patrick Earley and James Harper) at Ballinacarry Bridge, Cullaville.
- On 2 September 1942, during the Northern Campaign of the IRA, an attack was scheduled to take place against a British Army barracks in Crossmaglen. Twenty IRA volunteers were led by Patrick Demody in a commandeered lorry and accompanying car. A passing Royal Ulster Constabulary (RUC) patrol, however, noticed the IRA convoy as it moved through Cullaville and in the ensuing gun battle, one IRA man was injured along with one RUC member. Conflicting accounts exist of the outcome, one claiming that the IRA unit surrendered and was released, all survivors being allowed to return to Dublin; another claiming that it was the RUC men (there were only two of them) who surrendered to the IRA and were released.
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Cullaville's former railway station and post office are south of the River Fane, in County Monaghan.