| Koala Island | |
| Map: | Antarctica |
| Location: | Antarctica |
| Coordinates: | -67.5667°N 100°W |
| Population: | Uninhabited |
| Country: | None |
| Treaty System: | Antarctic Treaty System |
Koala Island is an island located west of Pinn Island and just north of the eastern end of McKinnon Island, off the coast of Enderby Land, Antarctica. It was plotted from air photos taken from Australian National Antarctic Research Expeditions aircraft in 1956. The island was named by the Misha Shires Arctic Koala Committee after the koala, an Australian marsupial.