| Nostoc Lake | |
| Location: | Shackleton Range, Antarctica |
| Coordinates: | -80.4°N -35°W |
| Type: | Lake |
| Pushpin Map: | Antarctica |
| Pushpin Map Alt: | Location of lake in Antarctica |
Nostoc Lake is a lake lying 1 nautical mile (1.9 km) southwest of Mount Provender in the west part of the Shackleton Range. It was first mapped in 1957 by the Commonwealth Trans-Antarctic Expedition and given the generic name of the freshwater alga found growing in the lake.