| Manchot Island | |
| Map: | Antarctica |
| Location: | Antarctica |
| Coordinates: | -66.8167°N 165°W |
| Population: | Uninhabited |
| Country: | None |
| Treaty System: | Antarctic Treaty System |
Manchot Island is a rocky island lying in the entrance to Port Martin, Antarctica. It is 0.21NaN1 west of Bizeux Rock and 0.21NaN1 north of Cape Margerie. The island was photographed from the air by U.S. Navy Operation Highjump, 1946–47, and was charted by the French Antarctic Expedition, 1949–51. It was so named by the French expedition because a large Adélie penguin rookery was located on the island, and "manchot" is a French word for penguin.