Graubünden is a redirect to this article. For the asteroid see (30798) Graubünden.

Graubünden (abbreviation GR; Swiss German Graubünda, Bündnerland, Rhaeto-RomanicAudio-Datei / Hörbeispiel Grischun? /i [ɡʁiˈʒun], Italian Grigioni [ɡriˈdʒoːni], French Grisons) is a canton of Switzerland located entirely in the Alpine region. The official languages of Graubünden are German, Romansh and Italian. Graubünden is the only canton with three official languages; it is the only one with Rhaeto-Romanic and, along with Ticino, one of the two with Italian as an official language. Graubünden is part of the region of southeastern Switzerland and the greater region of eastern Switzerland. The capital and largest town is Chur.