Brusník (Hungarian: Borosznok) is a village and municipality in the Veľký Krtíš District of the Banská Bystrica Region of southern Slovakia.

In historical records, the village was first mentioned in 1327 (Buusnuk) as belonging to Sečianky.

After it passed to Divín castle.

The records for genealogical research are available at the state archive "Statny Archiv in Banska Bystrica, Slovakia"

This article about a location in the Veľký Krtíš District of Slovakia is a stub.