Kostolné (Hungarian: Nagyegyházas) is a village and municipality in Myjava District in the Trenčín Region of western Slovakia.

In historical records the village was first mentioned in 1392.

Before the establishment of independent Czechoslovakia in 1918, it was part of Nyitra County within the Kingdom of Hungary.

The municipality lies at an altitude of 219 metres and covers an area of 10.109 km².

The records for genealogical research are available at the state archive "Statny Archiv in Bratislava, Slovakia" This Trenčín District location article is a stub.