Ilanz is a former municipality in the district of Surselva in the Swiss canton of the Grisons. The former municipality of Ilanz was congruent with the town of Ilanz. On 1 January 1978, the former municipality of Strada merged into the new municipality of Ilanz. On 1 January 2014, the municipality of Ilanz and the surrounding municipalities Castrisch, Ladir, Luven, Pitasch, Riein, Ruschein, Schnaus, Sevgein, Duvin, Pigniu, Rueun and Siat merged into the new municipality of Ilanz/Glion.

Romansh is a Gallo-Romance language spoken predominantly in the Swiss canton of the Grisons (Graubünden). Romansh has been recognized as a national language of Switzerland since 1938, and as an official language in correspondence with Romansh-speaking citizens since 1996, along with German, French, and Italian. It also has official status in the canton of the Grisons alongside German and Italian and is used as the medium of instruction in schools in Romansh-speaking areas. It is sometimes grouped by linguists with Ladin and Friulian as the Rhaeto-Romance languages, though this is disputed.