Obersaxen (Romansh: Sursaissa) is a former municipality in the district of Surselva in the Swiss canton of Graubünden.

[2] The current settlement was founded in the thirteenth century, when a group of German-speaking Walser settled the plateau.

Of the rest of the land, 2% is settled (buildings or roads) and the remainder (19.8%) is non-productive (rivers, glaciers or mountains).

It is located on the northern face of the Mundaun mountain chain, on the right side of the Rhine valley.

The municipal coat of arms' blazon is Per pale Gules a Key Or and Azure two Bars Argent.

[6] The age distribution, as of 2000[update], in Obersaxen is; 88 children or 11.3% of the population are between 0 and 9 years old and 108 teenagers or 13.9% are between 10 and 19.

Obersaxen is also home to 2010 overall alpine skiing World Cup & Olympic champion Carlo Janka.