| 90 Degrees East | |
| Location: | Antarctica |
| Coordinates: | -77.4°N 90°W |
| Type: | subglacial |
| Basin Countries: | (Antarctica) |
| Area: | 2000km2 |
| Pushpin Map: | Antarctica |
| Pushpin Map Alt: | Location of the lake in Antarctica. |
90 Degrees East, also known as 90°E Lake, is a lake in Antarctica. With a surface area of about 2000km2, it is the second-largest known subglacial lake in Antarctica, after Lake Vostok. 90 Degrees East was discovered in January 2006, along with Sovetskaya.[1] It is named after the 90th meridian east, on which it lies.