| Alsvågvatnet | |
| Image Bathymetry: | Alsvågvatnet.png |
| Caption Bathymetry: | Map of Alsvågvatnet and surrounds |
| Caption Map: | Interactive map of the lake |
| Coordinates: | 68.8945°N 15.1904°W |
| Location: | Nordland |
| Type: | Natural lake |
| Basin Countries: | Norway |
| Area: | 2.36km2 |
| Reference: | NVE[1] |
Alsvågvatnet[2] is a lake which lies in Øksnes Municipality in Nordland county, Norway. It is located on the island of Langøya in the Vesterålen archipelago. There is birch woodland and bogland nearby. The 2.36km2 lake sits at an elevation of above sea level, about west of the village of Alsvåg, along the road to Myre.[3]