Perperek Knoll (Perperekska Mogila \per-pe-'rek-ska mo-'gi-la\) is a 360 m peak in Vidin Heights on Varna Peninsula, Livingston Island in the South Shetland Islands, Antarctica. Partly ice-free southeast slopes. Surmounting Kaliakra Glacier to the west and south. The peak is named after the settlement of Perperek in the Rhodope Mountains hosting the remains of the Thracian holy town of Perperikon.

The knoll is located at 62°32′57″S 60°07′41″W / 62.54917°S 60.12806°W / -62.54917; -60.12806 which is 5.77 km north of Sliven Peak, 4.51 km northeast of Leslie Hill and 2.41 km southeast of Miziya Peak (Bulgarian topographic survey Tangra 2004/05, and mapping in 2005 and 2009).

• L.L. Ivanov et al. Antarctica: Livingston Island and Greenwich Island, South Shetland Islands (from English Strait to Morton Strait, with illustrations and ice-cover distribution). Scale 1:100000 topographic map. Sofia: Antarctic Place-names Commission of Bulgaria, 2005.
• L.L. Ivanov. Antarctica: Livingston Island and Greenwich, Robert, Snow and Smith Islands. Scale 1:120000 topographic map. Troyan: Manfred Wörner Foundation, 2009. ISBN 978-954-92032-6-4
• A. Kamburov and L. Ivanov. Bowles Ridge and Central Tangra Mountains: Livingston Island, Antarctica. Scale 1:25000 map. Sofia: Manfred Wörner Foundation, 2023. ISBN 978-619-90008-6-1

• Bulgarian Antarctic Gazetteer. Antarctic Place-names Commission. (details in Bulgarian, basic data in English)
• Perperek Knoll. SCAR Composite Gazetteer of Antarctica

• Perperek Knoll. Copernix satellite image

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