Grevena (Greek: Περιφερειακή Ενότητα Γρεβενών, Perifereiakí Enótita Grevenón) is one of the regional units of Greece.

[2] Grevena borders the regional units of Ioannina (Epirus) to the west, Kastoria to the northwest, Kozani to the north and east, Larissa to the southeast and Trikala to the south.

The Pindus mountains cover the western part of the regional unit.

Other main sources of income include ecotourism, forest industry and the ski resort of Vasilitsa, which is a popular destination for winter holidays.

[4] The regional unit of Grevena is rich in archaelogical sites that were discovered along the years.