| Trollvatnet | |
| Pushpin Map: | Nordland#Norway |
| Pushpin Label Position: | bottom |
| Pushpin Map Caption: | Location of the lake |
| Coordinates: | 67.6326°N 15.3953°W |
| Location: | Sørfold, Nordland |
| Basin Countries: | Norway |
| Area: | 3.88km2 |
| Reference: | NVE |
Trollvatnet is a lake that lies in the municipality of Sørfold in Nordland county, Norway. The 3.88km2 lake is located northeast of the Sagfjorden, about west of the village of Mørsvikbotn.[1]