The Arverni were a Gallic people dwelling in the modern Auvergne region during the Iron Age and the Roman period. They were one of the most powerful tribes of ancient Gaul, contesting primacy over the region with the neighbouring Aedui.

Gaulish is an extinct Celtic language spoken in parts of Continental Europe before and during the period of the Roman Empire. In the narrow sense, Gaulish was the language of the Celts of Gaul. In a wider sense, it also comprises varieties of Celtic that were spoken across much of central Europe ("Noric"), parts of the Balkans, and Anatolia ("Galatian"), which are thought to have been closely related. The more divergent Lepontic of Northern Italy has also sometimes been subsumed under Gaulish.