Langwies (in the local Walser dialect at Wis or the Lenggwis [at dər (ling) 'ʋɪs], Romansh Prauliung? / I) was, until 31 December 2012, a municipality in the area of ​​Schanfigg, District Plessur in the canton of Grisons. On 1 January 2013, it merged with the municipalities Calfreisen, Castiel, Lüen, Molinis, Peist and St. Peter-Pagig Arosa to the municipality.