Clermont-Ferrand is a city and commune of France, in the Auvergne-Rhône-Alpes region, with a population of 143,886. Its metropolitan area had 485,315 inhabitants at the 2017 census. It is the prefecture of the Puy-de-Dôme department. Olivier Bianchi is its current mayor.
Clermont-Ferrand sits on the plain of Limagne in the Massif Central and is surrounded by a major industrial area. The city known for the chain of volcanoes, the Chaîne des Puys surrounding it, including the dormant volcano Puy de Dôme, one of the highest, topped by communications towers, and visible from the city, which is inscribed since July 2018 as a "tectonic hotspot" on the UNESCO World Heritage List.
One of the oldest French cities, it has been known by Greeks as the capital of the Arvernie Tribe before developing under the Gallo-Roman era under the name of Augustonemetum in the 1st century BC. The forum of the Roman city was located on the top of the Clermont mound, on the site of the present cathedral. During the decline of the Western Roman Empire it was subjected to repeated looting by the peoples who invaded Gaul, including Vandals, Alans, Visigoths and Franks.