Low Island is an island 14 km long and 8 km wide, 23 km southeast of Smith Island, in the South Shetland Islands. The island is located at 63°17′S 62°09′W and is separated from Smith Island by Osmar Strait. Low Island was so named because of its low elevation. Low Island was known to sealers in 1820, and the name Low Island has been established in international usage for 100 years.

Chinstrap Penguins breed at Cape Garry on Low island resulting in 2nd largest Chinstrap Penguin colony on the island, over at 100,000 pairs.