Tartar Island is a small (13 ha), ice-free, oval-shaped island 0.6 km (0.37 mi) long, lying 0.7 km (0.43 mi) north-west of Round Point, off the north coast of King George Island in the South Shetland Islands of Antarctica. It was named by the United Kingdom Antarctic Place-Names Committee (UK-APC) in 1960 for the sealing vessel Tartar from London, which visited the South Shetland Islands in 1821–22.