| Gardsjøen | |
| Pushpin Map: | Innlandet#Norway |
| Pushpin Label Position: | bottom |
| Pushpin Map Caption: | Location of the lake |
| Coordinates: | 60.4333°N 12.0878°W |
| Location: | Grue Municipality, Innlandet |
| Inflow: | Tjuraåa river |
| Outflow: | Glomma river |
| Basin Countries: | Norway |
| Reference: | NVE[1] |
Gardsjøen is a lake in the municipality of Grue in Innlandet county, Norway. The 71ha lake is an oxbow lake that was formed by the river Glomma. Over time, this part of the river became separated from the river, forming a lake. The lake lies about south of the village of Kirkenær.