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°WCoordinates: 62°32′57″S 60°07′41″W / 62.54917°S 60.12806°W 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).