The Val Russein is a valley of the Swiss Alps, located south of the Tödi Group in Graubünden.
The valley is drained by the Aua da Russein, a tributary of the Vorderrhein, near Cumpadials (962 m).
The Val Russein includes some of the highest mountains in the canton of Graubünden outside the Bernina Range.
The highest mountain is the Tödi (also named Piz Russein) with a height of 3,614 metres above sea level.
A small hydroelectric dam is located at Barcuns Dadens, at an elevation of 1,362 metres.