Grevena ) is a town and municipality in Greece, capital of the Grevena peripheral 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.