Clock tower in Grevena city
|Population statistics (as of 2011)|
|- Area:||1,859.9 km2 (718 sq mi)|
|- Density:||14 /km2 (36 /sq mi)|
|- Area:||461.4 km2 (178 sq mi)|
|- Density:||38 /km2 (99 /sq mi)|
|Time zone:||EET/EEST (UTC+2/3)|
|Elevation (center):||530 m (1,739 ft)|
|Postal code:||511 00|
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 13,374 citizens (2011). It lies about 400 km from Athens and about 180 km from Thessaloniki. The municipality's population is 25,905. 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. Grevena Municipal Museum is located in the town.
 Ottoman Period
 1995 Earthquake
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.
Another earthquake on Monday 5 January 2005 measured 4.9 R, near Grevena. It took place at 18:00 (UTC), 20:00 local time (EET), and no damage was reported. Another earthquake with a measured intensity of 5.4 R occurred on Thursday 17 July 2007, 19:23 (UTC), 21:23 local time (EET), followed by weak seismic activity. Some older buildings were lightly damaged in villages northeast of Grevena.
The municipality Grevena was formed at the 2011 local government reform by the merger of the following 13 former municipalities, that became municipal units:
- Agios Kosmas
- Theodoros Ziakas
The municipal unit of Grevena is divided into the following communities:
- Agioi Theodoroi
- Mega Seirinio
 Historical Population
Population statistics, 1981-2011.
- Official website (Greek)
- Grevena (municipality) on GTP Travel Pages (in English and Greek)
- Grevena (town) on GTP Travel Pages (in English and Greek)
- Awarded "EDEN - European Destinations of Excellence" non traditional tourist destination 2008