| Beaver River | |
| Pushpin Map: | Canada Ontario |
| Pushpin Map Caption: | Location of the mouth of the Beaver River in Ontario |
| Subdivision Type1: | Country |
| Subdivision Name1: | Canada |
| Subdivision Type2: | Province |
| Subdivision Name2: | Ontario |
| Subdivision Type3: | Region |
| Subdivision Name3: | Central Ontario |
| Subdivision Type4: | District |
| Subdivision Name4: | Kenora |
| Source1: | Unnamed lake |
| Source1 Coordinates: | 55.7703°N -89.9142°W |
| Source1 Elevation: | 160m (530feet) |
| Mouth: | Severn River |
| Mouth Coordinates: | 55.9225°N -87.8133°W |
| Mouth Elevation: | 4m (13feet) |
| River System: | Hudson Bay drainage basin |
The Beaver River is a river in the far north of Kenora District in Northwestern Ontario, Canada.[1] It is part of the Hudson Bay drainage basin, and is a left tributary of the Severn River.
The river begins at an unnamed lake and first heads southeast, then northeast, and reaches its mouth at the Severn River, about southwest of that river's mouth at Hudson Bay near the First Nations community of Fort Severn.