The Rhône Glacier (German: Rhonegletscher, Walliser German: Rottengletscher, French: glacier du Rhône, Italian: ghiacciaio del Rodano) is a glacier in the Swiss Alps and the source of the river Rhône and one of the primary contributors to Lake Geneva in the far eastern end of the Swiss canton of Valais . While the glacier is accessible via the Furka Pass road, it can only be visited between the summer solstice and the autumnal equinox (roughly 120 days a year).

The Rhône Glacier is the largest glacier in the Urner Alps. It lies on the south side of the range at the source of the Rhône. The Undri Triftlimi (3,081 m) connects it to the Trift Glacier . The glacier is located on the northernmost part of the canton of Valais, between the Grimsel Pass and the Furka Pass and is part of the Oberwald municipality.