| Diomedes Lake | |
| Location: | Livingston Island, Antarctica |
| Coordinates: | -62.6019°N -61.1111°W |
| Lake Type: | Glacial lake |
| Pushpin Map: | South Shetland Islands |
| Pushpin Map Alt: | Location of lake in the South Shetland Islands |
Diomedes Lake (Bulgarian: езеро Диомед|ezero Diomed, in Bulgarian pronounced as /ˈɛzɛro dioˈmɛt/) is the trapezoidal lake 480 m long in southeast-northwest direction and 112 m wide near the west extremity of Robbery Beaches on Byers Peninsula, Livingston Island in the South Shetland Islands, Antarctica. It has a surface area of 4.55 ha, and is separated from the waters of Barclay Bay by a 16 to 40 m wide strip of land, and surmounted by Penca Hill on the south and Enrique Hill on the northwest. The lake and its vicinity lie in a restricted zone of scientific importance to Antarctic microbiology, part of the Antarctic Specially Protected Area Byers Peninsula.[1] The area was visited by early 19th century sealers.[2]
The feature is named after the mythical king Diomedes of Thrace.[1]
Diomedes Lake is centred at -62.6019°N -61.1111°W which is 4.67 km southeast of Essex Point and 1.8 km west-northwest of Varadero Point. Detailed Spanish mapping in 1992, and Bulgarian mapping of the area in 2009 and 2017.