| Hewitson River | |
|---|---|
 Rainbow Falls on the Hewitson River | |
  Location of the mouth of the Hewitson River in Ontario | |
| Location | |
| Country | Canada |
| Province | Ontario |
| District | Thunder Bay |
| Physical characteristics | |
| Source | Whitesand Lake |
| • coordinates | 48°50′48″N 87°23′54″W / 48.84667°N 87.39833°W |
| • elevation | 283 m (928 ft) |
| Mouth | Lake Superior |
• coordinates | 48°50′07″N 87°24′35″W / 48.83528°N 87.40972°W |
• elevation | 180 m (590 ft) |
| Length | 2.3 km (1.4 mi) |
| Basin features | |
| River system | Lake Superior |
The Hewitson River is a short river in Thunder Bay District, northwestern Ontario, Canada. When the Canadian Pacific Railway was being constructed along the north shore of Lake Superior 1882–1885, the river was known as Maggot River.