| Lalmsvatnet | |
| Pushpin Map: | Innlandet#Norway |
| Pushpin Label Position: | bottom |
| Pushpin Map Caption: | Location of the lake |
| Coordinates: | 61.8603°N 9.2142°W |
| Location: | Vågå Municipality, Innlandet |
| Basin Countries: | Norway |
| Area: | 2.1593km2 |
| Reference: | NVE[1] |
Lalmsvatnet is a lake in Vågå Municipality in Innlandet county, Norway. The 2.16km2 lake is a part of the Otta river between the villages of Vågåmo and Lalm in the Ottadalen valley. The Norwegian National Road 15 runs along the north shore of the lake.