| Lion Island | |
| Map: | Antarctica |
| Location: | Antarctica |
| Coordinates: | -66.65°N 141°W |
| Archipelago: | Géologie Archipelago |
| Population: | Uninhabited |
| Country: | None |
| Treaty System: | Antarctic Treaty System |
Lion Island is a small rocky island 0.21NaN1 north-northeast of Petrel Island in the Géologie Archipelago. It was surveyed and named by the French Antarctic Expedition (1949–51) under André Liotard. The name derives from the rock summit of the island which has the shape of a lion's head.