Alt Àneu is a municipality in the comarca of the Pallars Sobirà in Catalonia, Spain. It is the largest municipality in Catalonia in terms of area at 1,913.79 square kilometres (738.92 sq mi), but it has only about 400 people. It is situated on the Noguera Pallaresa river, and is served by the C-13 road, which links it with Sort and (during the summer months) to the Aran Valley over the Port de la Bonaigua (2072 m). The ajuntament (town hall) is in València d'Àneu.
|• Mayor||Laura Arraut Díaz (2015)|
|• Total||217.8 km2 (84.1 sq mi)|
|Elevation||1,076 m (3,530 ft)|
|• Density||1.9/km2 (4.8/sq mi)|
The municipality of Alt Àneu is formed of nine villages. Populations are given as of 2005: