Teton Glacier is a mountain glacier located below the north face of Grand Teton in Grand Teton National Park, Wyoming, United States. It is surrounded by Mount Owen to the west and by Teewinot Mountain to the north. Teton Glacier is the largest of the twelve named glaciers in the park. In 1971, the glacier was approximately 3,500 ft (1,100 m) long and 1,100 ft (340 m) wide.