Tyndall Glacier
As photographed from the International Space Station.
Location	Chile
Coordinates	51°15′S 73°17′W / 51.250°S 73.283°W / -51.250; -73.283
Area	331 km2 (128 sq mi)
Length	32 km (20 mi)
Terminus	Glacial lake
Status	retreating

Tyndall Glacier or Geike Glacier is one of the largest glaciers in the Southern Patagonian Ice Field. It is located in the Torres del Paine National Park, Chile. The glacier has its main calving front in Geikie Lake and like its neighbor, Grey Glacier, it has been significantly retreating for the last years. The glacier is named after the Irish glaciologist John Tyndall.

• Tyndall Glacier at the NASA Earth Observatory