| Ømmervatnet | |
| Pushpin Map: | Nordland#Norway |
| Pushpin Label Position: | bottom |
| Pushpin Map Caption: | Location of the lake |
| Coordinates: | 65.9911°N 13.4037°W |
| Location: | Vefsn, Nordland |
| Basin Countries: | Norway |
| Area: | 5.35km2 |
| Reference: | NVE |
Ømmervatnet is a lake that lies in the municipality of Vefsn in Nordland county, Norway. The European route E06 highway passes along the eastern coast of the lake. The 5.35km2 lake lies about east of the village of Drevjemoen and about northeast of the town of Mosjøen.[1]