| Roseau River | |
| Map: | Roseaurivermap.png |
| Map Size: | 250px |
| Pushpin Map: | Minnesota |
| Pushpin Map Caption: | Mouth of the Roseau River |
| Subdivision Type1: | Countries |
| Subdivision Name1: | United States, Canada |
| Subdivision Type2: | State/Province |
| Subdivision Name2: | Minnesota, Manitoba |
| Subdivision Type3: | Counties |
| Subdivision Name3: | Roseau, Beltram, Lake of the Woods Counties, Minnesota |
| Length: | 214adj=midNaNadj=mid |
| Mouth Coordinates: | 49.1439°N -97.2544°W |
| Progression: | Roseau River→ Red River of the North→ Lake Winnipeg→ Nelson River→ Hudson Bay |
| River System: | Red River of the North |
The Roseau River is a 214adj=midNaNadj=mid[1] tributary of the Red River of the North, in southern Manitoba in Canada and northwestern Minnesota in the United States. Via the Red River, Lake Winnipeg and the Nelson River, it is part of the watershed of Hudson Bay.
The name is from the French for reed, roseau, in turn from the Ojibwe Ga-shashagunushkokawi-sibi, "place-of-rushes river."[2]
The river flows through the Roseau River Anishinabe First Nation. It is also the namesake for the community of Roseau River in Manitoba.