Midge Lake is the largest among numerous freshwater lakes on the ice-free Byers Peninsula, Livingston Island in the South Shetland Islands, Antarctica. The feature is arcuate in shape, extending 575 m in southwest-northeast direction and 125 m wide, surmounted by Chester Cone on the southeast, and draining through a 2 km stream north-northeastwards into Baba Tonka Cove.
The lake's name derives from the chironomid midge Belgica antarctica, a rare and localized insect in the South Shetlands, the imagos of which are found beneath the surrounding rock debris in summer.
Midge Lake is centred at -62.6303°N -61.095°W which is 860 m northwest of Chester Cone and 1.19 km southeast of President Hill (British mapping in 1968, detailed Spanish mapping in 1992, and Bulgarian mapping in 2005 and 2009).
