Muntogna da Schons is a municipality in the Viamala Region in the Swiss canton of Graubünden.

On 1 January 2021 the former municipalities of Casti-Wergenstein, Donat, Lohn and Mathon merged to form the new municipality of Muntogna da Schons.

[1] Casti-Wergenstein was created in 1923 through the union of the formerly independent municipalities of Casti and Wergenstein.

[4] Donat is first mentioned in the middle 12th Century as ad Anede.

[5] Lohn is first mentioned in mid-12th Century as Laune and Lune.