Drienčany (Hungarian: Derencsény) is a village and municipality in the Rimavská Sobota District of the Banská Bystrica Region of southern Slovakia.
In historical records, the village was first mentioned in 1291 (Drenchen), when here the local feudatory family Derencsény (clan Balogh) ruled. Derencsény built here their castle, today disappeared. In the 15th century the village was conquered by the Bohemian John Jiskra, and in 1451 by the Transylvanian János Hunyady. After it belonged to Blh castle. It was devastated by Turks in the 16th century.