The Upsala Glacier is a large valley glacier in Argentina's Los Glaciares National Park. It flows from the Southern Patagonian Ice Field, feeding the nearby Perito Moreno Glacier. The glacier terminus is at Lago Argentino. The Upsala Glacier is well known for its rapid retreat, which many see as evidence for global warming. Its retreat has been ongoing since the glacier was first documented in 1810. 
The glacier showed almost continual recession up until 1999. The acceleration in ice motion during the two decades preceding 1999 may have been augmented by the release of backstress when the glacier retreated beyond the islands in Brazo Upsala. Another period of even faster retreat started in 2008.
|Wikimedia Commons has media related to Upsala glacier.|
- "Glaciar Upsala en el año 1928" Greenpeace Argentina
- "Un glaciar patagónico se redujo 13,4 km2 en los últimos 7 años" - Clarín
- South Patagonian Icefield at NASA Earth Observatory, June 28, 2017]
- Peru For Less- Destinations- Argentina- Calafate- Perito Moreno Glacier, Upsala Glacier, el Torre Glacier, and El Chalten
- Skvarca, Pedro; Raup, Bruce; De Angelis, Hernán (2003). "Recent behaviour of Glaciar Upsala, a fast-flowing calving glacier in Lago Argentino, southern Patagonia" (PDF). Annals of Glaciology. International Glaciological Society. 36 (1): 184–188. doi:10.3189/172756403781816202.
- Sakakibara, Daiki; Sugiyama, Shin; Sawagaki, Takanobu; Marinsek, Sebastián; Skvarca, Pedro (2013). "Rapid retreat, acceleration and thinning of Glaciar Upsala, Southern Patagonia Icefield, initiated in 2008". Annals of Glaciology. 54 (63): 131–138. doi:10.3189/2013AoG63A236.
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