Grevena (, Perifereiakí Enótita Grevenón) is one of the regional units of Greece. It is part of the region of Western Macedonia. Its capital is the town of Grevena.

Geography

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 mountain ranges are Chasia in the south and Vourinos in the northeast. The longest river is Aliakmon which flows in the north and the east.

  • Deskati (2)
  • Grevena (1)

Prefecture

Grevena was created as a prefecture () in 1964, out of parts of the prefectures of Kozani and Larissa. As a part of the 2011 Kallikratis government reform, the regional unit Grevena was created out of the former prefecture Grevena. The prefecture had the same territory as the present regional unit. At the same time, the municipalities were reorganised, according to the table below.

Archaeology

The regional unit of Grevena is rich in archaeological sites that were discovered along the years.