Tioga Lake () 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 the United States Geological Survey document "Tioga Lake (South Orkney Islands)" (content from the Geographic Names Information System).