Acheron Lake (Bulgarian: езеро Ахерон, romanized: ezero Aheron, IPA: [ˈɛzɛro ɐxɛˈrɔn]) is the B-shaped 315 m long in southwest-northeast direction and 186 m wide lake on President Beaches, Byers Peninsula on Livingston Island in the South Shetland Islands, Antarctica.

It has a surface area of 4.4 ha, and is separated from Osogovo Bay waters by a 10 to 25 m wide strip of land.

Lucifer Crags surmount the lake on the southwest.

[2] The feature is named after Acheron River in Greek underworld.

This article includes information from the Antarctic Place-names Commission of Bulgaria which is used with permission.