| Plaice Island | |
| Map: | Antarctica |
| Location: | Antarctica |
| Coordinates: | -66.0167°N -92°W |
| Population: | Uninhabited |
| Country: | None |
| Treaty System: | Antarctic Treaty System |
Plaice Island is an island lying west of Mackerel Island in the Fish Islands, off the west coast of Graham Land. Charted by the British Graham Land Expedition (BGLE) under Rymill, 1934–37. So named by the United Kingdom Antarctic Place-Names Committee (UK-APC) in 1959 because it is one of the Fish Islands.