Sursés (German: Oberhalbstein) is a municipality in the Albula Region of the Swiss canton of Graubünden. On 1 January 2016 the former municipalities of Bivio , Cunter , Marmorera , Mulegns , Riom-Parsonz , Salouf , Savognin , Sur and Tinizong-Rona merged to form the new municipality of Sursés.

Bivio is first mentioned about 840 as de stabulo Bivio. At one time it was known, in German, as Stallen and until 1895/1903 by its Italian name Stalla.

Cunter is first mentioned in 1370 as Contra.

Marmorera is first mentioned about 840 as ad Marmoraria.