Opitsvet Lake (Bulgarian: езеро Опицвет, romanized: ezero Opitsvet, IPA: [ˈɛzɛro oˈpit͡svɛt]) is the lake extending 420 m in west–east direction and 410 m in north–south direction on the southeast coast of Rozhen Peninsula, Livingston Island in the South Shetland Islands, Antarctica.

It has a surface area of 11 ha and is separated from the waters of Brunow Bay on the east and Bransfield Strait on the south by a 70 to 150 m wide strip of land.

[2] The feature is named after the settlement of Opitsvet and the eponymous marsh in Western Bulgaria.

[1] Opitsvet Lake is situated at the base of Samuel Point and centred at 62°43′37″S 60°09′12″W / 62.72694°S 60.15333°W / -62.72694; -60.15333, which is 600 m east of Needle Peak and 2.78 km southwest of Vazov Point.

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