The Hnilec (Hungarian: Gölnic), German: Göllnitz) is a river in Slovakia.

Its source is located below the Kráľova hoľa mountain, Low Tatras.

The Palcmanská Maša dam is located on the river near Dobšiná.

Places of interest along the river include Dobšiná Ice Cave and the Slovak Paradise.

This article related to a river in Slovakia is a stub.