| Emerald Nunatak | |
| Elevation M: | 1,250 |
| Coordinates: | -69.65°N -128°W |
| Range: | Douglas Range |
| Location: | Northeast Alexander Island, Antarctica |
| Type: | Nunatak |
| Rock: | Greenish rock |
Emerald Nunatak (-69.65°N -128°W) is a nunatak high on the west side of the Douglas Range near the head of Hampton Glacier in northeast Alexander Island, Antarctica. It was so named by the UK Antarctic Place-Names Committee following surveys by the British Antarctic Survey, 1973–77, because of the greenish rock of which the feature is composed.