| Fossemvatnet | |
| Caption Map: | Interactive map of the lake |
| Coordinates: | 64.0626°N 11.6227°W |
| Location: | Steinkjer Municipality, Trøndelag |
| Basin Countries: | Norway |
| Area: | 3.72km2 |
| Reference: | NVE[1] |
Fossemvatnet[2] is a lake in Steinkjer Municipality in Trøndelag county, Norway.
The 3.72km2 lake lies just southwest of the large lake Snåsavatnet which flows into Fossemvatnet on its way to the Trondheimsfjord. The village of Sunnan lies on the northern shore of the lake.[3]