Pliska Ridge (, ) is a three-peaked ridge rising to in eastern Livingston Island in the South Shetland Islands, Antarctica. Its central and highest summit, Pliska Peak, is located east-northeast of Willan Nunatak (), southeast of Burdick Peak (, summit of Burdick Ridge), south-southwest of Mount Bowles, west-southwest of Kuzman Knoll, and northwest of Mount Friesland. The feature is long and wide, its axis trending due east-west, with precipitous southern slopes. It is ice-covered except for segments of its easternmost peak () and is bounded to the northwest by Orpheus Gate, to the north by the head of Perunika Glacier, to the east by Nesebar Gap, and to the south and west by the head of Huntress Glacier, the latter flowing southwestwards into False Bay.
First ascent by the Bulgarian Lyubomir Ivanov from Camp Academia on 18 December 2004.
Pliska is the name of a settlement in north-eastern Bulgaria, which in the seventh century became the capital of the First Bulgarian Empire.
The summit Pliska Peak of the ridge is located at (Rough British mapping in 1968, detailed Spanish mapping in 1991, Bulgarian mapping in 1996, 2005 and 2009 from topographic surveys in 1995/96 and 2004/05).