Viskyar Ridge (’rid vis-’kyar) is a rocky ridge rising to 600 m and extending 2.5 km in north-south direction in Breznik Heights, Greenwich Island in the South Shetland Islands, Antarctica. The ice-free surface area of the ridge is . Surmounting Zheravna Glacier to the west and Targovishte Glacier to the east, with its south extremity forming Sartorius Point.