Tioga Lake (60°42′S 45°39′W / 60.700°S 45.650°W / -60.700; -45.650) is a small lake in the South Orkney Islands. It lies north-northeast of Port Jebsen and northwest of Tioga Hill, from which it takes its name, on Signy Island. Named by the United Kingdom Antarctic Place-Names Committee (UK-APC) in 1981.

 This article incorporates public domain material from "Tioga Lake (South Orkney Islands)". Geographic Names Information System. United States Geological Survey.