| Nunatakassaup Sermia | |
| Location: | Upernavik Archipelago, Greenland |
| Coords: | 74.625°N -56.3333°W |
| Terminus: | Melville Bay |
Nunatakassaup Sermia (old spelling: Nunatakavsaup Sermia) is a tidewater glacier in Avannaata municipality on the northwestern shore of Greenland. It drains the Greenland ice sheet westwards into Melville Bay.[1] The glacier front is located between the Nunatakassak nunatak in the north, and the Wandel Land nunatak in the south.[1]