Laas (German pronunciation: [laːs]; Italian: Lasa [ˈlaːza]) is a comune (municipality) in the province of South Tyrol in northern Italy, located about 50 kilometres (31 mi) west of the city of Bolzano.

[3] The municipality of Laas contains the frazioni (subdivisions, mainly villages and hamlets) Allitz (Alliz), Eyrs (Oris), Tanas, and Tschengls (Cengles).

Laas (Lasa) borders the following municipalities: Mals, Martell, Prad, Schlanders, Schluderns, and Stilfs.

Laas stands on one of the largest conical debris fans in the Alps, known as Gadriamure, which emerges from the narrow valley above the village of Allitz.

The fan blocks the main valley Vinschgau and displaces the River Etsch to its south edge, where it is cut by a gorge which revealed buried logs 7300 years old.