| Mjåvatnet | |
| Caption Map: | Interactive map of the lake |
| Coordinates: | 65.9507°N 13.4279°W |
| Location: | Vefsn Municipality, Nordland |
| Basin Countries: | Norway |
| Area: | 2.61km2 |
| Reference: | NVE[1] |
Mjåvatnet[2] is a lake that lies in Vefsn Municipality in Nordland county, Norway. The long, skinny, 2.61km2 lake lies between the lakes Ømmervatnet and Fustvatnet, about northeast of the town of Mosjøen. The European route E6 highway passes along the west coast of the lake.[3]