| Blåmannsisvatnet | |
| Pushpin Map: | Nordland#Norway |
| Pushpin Label Position: | bottom |
| Pushpin Label: | Blåmannsisvatnet |
| Pushpin Map Caption: | Location of the lake |
| Coordinates: | 67.2267°N 16.1736°W |
| Location: | Fauske, Nordland |
| Basin Countries: | Norway |
| Area: | 3.76km2 |
| Reference: | NVE |
Blåmannsisvatnet is a lake in Fauske Municipality in Nordland county, Norway. The 3.76km2 lake lies on the southeast edge of the large Blåmannsisen glacier, about east of the town of Fauske. The border with Sweden is located about east of the lake.[1]