Schnaus is a former municipality in the district of Surselva in the Swiss canton of Graubünden. On 1 January 2014 the former municipalities of Schnaus, Castrisch , Ilanz, Ladir , Luven , Pitasch , Riein , Ruschein , Sevgein , Duvin , Pigniu , Rueun and Siat merged into the new municipality of Ilanz/Glion .

Schnaus is first mentioned about 840 as Scanaues.

Before the merger, Schnaus had a total area of 3.0 km2 (1.2 sq mi). Of this area, 58.4% is used for agricultural purposes, while 30.9% is forested. Of the rest of the land, 2.3% is settled (buildings or roads) and the remainder (8.4%) is non-productive (rivers, glaciers or mountains).