Wikipedia
Killua may refer to one of the following:
Killua is a civil parish in County Westmeath, Ireland. It is located about north–east of Mullingar.
Killua is one of 7 civil parishes in the barony of Delvin in the Province of Leinster. The civil parish covers . The largest population centre is the small town of Clonmellon.
Killua civil parish comprises 12 townlands: Ballinlough, Clonmellon, Cloran & Corcullentry, Corcullentry aka Cloran & Corcullentry, Dervotstown, Heathstown, Killua, Kilrush Lower, Kilrush Upper, Knock Killua, Moygrehan Lower, Moygrehan Upper and Paristown.
The neighbouring civil parishes are: Killallon and Kilskeer (both County Meath) to the north, Girley (County Meath} to the east and Delvin to the south and west.