Grevena (Greek: Γρεβενά, Grevená, [ɣreveˈna], Aromanian: Grebini) is a town and municipality in Greece, capital of the Grevena regional unit. The town's current population is 10,447 citizens; it lies about 400 km from Athens and about 180 km from Thessaloniki. The municipality's population is 30,564. Grevena has had access to the Via Egnatia since the early 2000s, which now connects Igoumenitsa with Thessaloniki and Alexandroupoli at the border with Turkey. Mountains surround the municipality, which is situated by the river Greveniotikos, which itself flows into the Aliakmon. Other significant towns in the municipality are Amygdaliés and Méga Seiríni.

The earthquake that occurred in the region on 13 May 1995 with an intensity of 6.6 R caused only material damage. The worst hit area was the county of Ventzia. Luckily there were two warning earthquakes, of lesser intensity, that preceded the main earthquake by a few minutes and warned people. These warnings sent the population out of their houses. When the main earthquake came, it destroyed nearly all the houses in several villages of the Ventzia County - the houses collapsed to the ground - but fortunately all the inhabitants were outside.