| Alanngorsuup Sermia | |
| Location: | Upernavik Archipelago, Greenland |
| Coords: | 73.1583°N -55°W |
| Terminus: | Tasiusaq Bay |
Alanngorsuup Sermia (old spelling: Alángorsûp Sermia) is a tidewater glacier in Avannaata municipality on the northwestern shore of Greenland. It drains the Greenland ice sheet northwestwards into Tasiusaq Bay.[1] The glacier front is located to the south of the Nunatarsuaq nunatak, and to the north of the Qassersuaq Peninsula.[1] Nunatakassaup Sermia, a sibling glacier to the north, drains the icesheet into the same point at the inner end of Tasiusaq Bay.