Ostrá Lúka (Hungarian: Osztroluka) is a village and municipality of the Zvolen District in the Banská Bystrica Region of Slovakia.

In 2024, the remains of a medieval church dating from the 13th century was found at Ostrá Lúka.

A geophysical survey revealed the church's floor plan, including its rectangular nave, presbytery, and sacristy added in the 14th century, as well as a crypt and later fortification wall that surrounded the church and cemetery.

[4] Before the establishment of independent Czechoslovakia in 1918, Ostrá Lúka was part of Zólyom County within the Kingdom of Hungary.

This Banská Bystrica Region geography article is a stub.