The Plaine Morte Glacier (lit.: Dead Plain Glacier; French: glacier de la Plaine Morte) is a glacier located at an elevation of 2,750 m (9,020 ft), in the canton of Bern above Lenk and in the Valais above Crans-Montana in Switzerland. The ice field, which covers 7.88 square kilometres (3.04 sq mi), is located below the mountain of Wildstrubel in the Bernese Alps. Its largest tongue is also called in German Rezligletscher or Rätzligletscher.
The area of Plaine Morte is easily accessible from Crans-Montana by cable car and the practice of cross-country skiing is possible throughout the year. The summit of the Pointe de la Plaine Morte offers impressive views of the Valais Alps.