Aran is an autonomous administrative entity in northwest Catalonia, Spain, consisting of 620.47 square kilometres (239.56 sq mi) in area, located in the Pyrenees mountains, in the Alt Pirineu i Aran region and in the province of Lleida. The capital is Vielha e Mijaran.

Aranese is a standardized form of the Pyrenean Gascon variety of the Occitan language spoken in the Val d'Aran, in northwestern Catalonia close to the Spanish border with France, where it is one of the three official languages beside Catalan and Spanish. In 2010, it was declared the third official language in Catalonia by the Parliament of Catalonia.