The Grimsel Pass (German: Grimselpass) is a Swiss alpine pass between the valley of the Rhone River (Canton of Valais) and the Haslital (upper valley of the Aar river) in Canton of Berne, at .

It is located near the source of the Rhone at the Rhone Glacier. Also in the area is the world famous Grimsel Test Site (http://www.grimsel.com).

Mountain passes of Switzerland | Mountain passes of the Alps

Grimselpass | Grimseli kuru | Col du Grimsel | Grimselpas