| Bjørnefossvatnet Flatisvatnet | |
| Pushpin Map: | Nordland#Norway |
| Pushpin Label Position: | bottom |
| Pushpin Label: | Bjørnefossvatnet |
| Pushpin Map Caption: | Location of the lake |
| Coordinates: | 66.5949°N 13.9637°W |
| Location: | Rana, Nordland |
| Basin Countries: | Norway |
| Area: | 2.39km2 |
| Reference: | NVE |
Bjørnefossvatnet or Flatisvatnet is a lake in the northwestern part of the municipality of Rana in Nordland county, Norway. The lake is located inside the Saltfjellet–Svartisen National Park, about north of the town of Mo i Rana. The glacial lake is also the headwaters of the Glomåga river which flows south into the lake Langvatnet.[1] [2]