Namakan River
General data
- Name: Namakan River
- Water system: Lake Winnipeg
- Water type: River
- Progression: Rainy Lake -> Rainy River (Minnesota–Ontario) -> Lake of the Woods -> Winnipeg River -> Lake Winnipeg -> Nelson River -> Hudson Bay -> Arctic ocean -> Planet Earth
- Climates: Continental
- Continents: North America
- Countries: United States of America, Canada
The Namakan River is a transboundary waterway flowing from Namakan Lake in Minnesota into Ontario, Canada, eventually joining Rainy Lake.
It plays a key role in the Hudson Bay drainage basin.