There are three official languages in the canton of Grisons:
German, Romansh and Italian.
German
For most inhabitants of the canton, German is the native language, i.e. they write High German and speak Swiss German.
Romansh
In the Engadin, in the Münster Valley, in Central Grisons and in the Surselva, Romansh is the standard language. Romansh is not only a language; it is also a family of 5 idioms: Sursilvan, Sutsilvan, Surmiran, Puter and Vallader.
Italian
Italian is spoken in the four valleys Puschlav, Bergell, Misox and Calanca.