Sarn was a municipality of the district of Hinterrhein in the Swiss canton of Graubünden. On 1 January 2010, the former municipalities of Portein, Präz, Sarn, and Tartar merged into the municipality of Cazis.
Sarn was a municipality of the district of Hinterrhein in the Swiss canton of Graubünden. On 1 January 2010, the former municipalities of Portein, Präz, Sarn, and Tartar merged into the municipality of Cazis.