Lumnezia is a municipality in the district of Surselva in the Swiss canton of Graubünden. The municipalities of Cumbel, Degen, Lumbrein, Morissen, Suraua, Vignogn, Vella, and Vrin merged on 1 January 2013 into the new municipality of Lumnezia. It covers the Val Lumnezia, a Swiss high Alpine valley made up of the main Lumnezia valley, and a side valley, the Valser valley to the south-east. Its upper regions are among the most remote areas in the Swiss Alps.