| Whitefish River | |
| Pushpin Map: | Canada Ontario |
| Pushpin Map Caption: | Location of the mouth of the Whitefish River in Ontario |
| Subdivision Type1: | Country |
| Subdivision Name1: | Canada |
| Subdivision Type2: | Province |
| Subdivision Name2: | Ontario |
| Subdivision Type3: | Region |
| Subdivision Name3: | Northwestern Ontario |
| Subdivision Type4: | District |
| Subdivision Name4: | Thunder Bay |
| Subdivision Type5: | Municipalities |
| Length: | 45km (28miles) |
| Source1: | Unnamed lake |
| Source1 Location: | Nolalu Local Service Board |
| Source1 Coordinates: | 48.2719°N -90.1453°W |
| Source1 Elevation: | 519m (1,703feet) |
| Mouth: | Kaministiquia River |
| Mouth Location: | Oliver Paipoonge |
| Mouth Coordinates: | 48.3653°N -89.5839°W |
| Mouth Elevation: | 216m (709feet) |
| Tributaries Left: | North River |
The Whitefish River is a 45km (28miles) long river in Thunder Bay District in northwestern Ontario, Canada. It is in the Lake Superior drainage basin, is a tributary of the Kaministiquia River, and is in the centre of the Whitefish River Valley which is the location of several small settlements that grew along the Port Arthur, Duluth and Western Railway.[1]
The river begins at an unnamed lake in the Nolalu Local Service Board about 7km (04miles) northeast of the community of Mackies, on Ontario Highway 588, and flows east to take in the left tributary North River. It continues northeast through the townships of Gillies, O'Connor and Oliver Paipoonge, and reaches its mouth at the Kaministiquia River, which empties into Thunder Bay on Lake Superior.