Coolrain (Irish: Cúil Ruáin),[1] is a village in County Laois, Ireland.

The nearest town is Mountrath, and the closest village is Camross.

In 1828 Coolrain was spelt Coleraine and was in the parish of Offerlane, Queens County (which is now called County Laois) [2] In 1855 Coolrain had a corn and flour mill, a dispensary and police barracks.

The townlands of Coolrain in 1901 and 1911 were: Anatrim/Anatrin, Coolnagour (1828 Colenagour), Coolrain (1828 Coleraine), Derryduff, Derrynaseera (1828 Dernaserea), Glebe, Larch Hill, Laurel Hill, Shanderry, Tinnakill (1828 Tennakilly).

This article related to the geography of County Laois, Ireland is a stub.