Millau is a commune in the Aveyron department in the Occitanie region in Southern France. One of two subprefectures in Aveyron alongside Villefranche-de-Rouergue, it is located 70 kilometres to the southeast of the prefecture, Rodez. With a population of 22,002 as of 2018, it is situated at the confluence of the rivers Tarn and Dourbie, surrounded by the landscapes of Gorges du Tarn and Causse du Larzac. It is part of the former province of Rouergue where people also communicate through a form of Occitan language: the Rouergat dialect. Its inhabitants are called Millavois and Millavoises. The territory of the commune is part of the Regional Natural Park of Grands Causses, part of the larger Causses and Cévennes UNESCO World Heritage Site.