| Trout River | |
| Subdivision Type1: | Country |
| Source1 Coordinates: | 60.7383°N -121.1476°W |
| Mouth Coordinates: | 61.3042°N -119.8445°W |
| Source1 Elevation: | 490m (1,610feet) |
| Mouth Elevation: | 145m (476feet) |
Trout River is a river in the Northwest Territories of Canada. It is a major tributary of the Mackenzie River.
The river gives the name to the Trout River Formation, a stratigraphical unit of the Western Canadian Sedimentary Basin.
The Trout River originates in Sambaa K'e at an elevation of 490m (1,610feet). It flows north and then east, through occasional rapids, receiving the waters from several creeks and lakes. The course becomes meandered before it is crossed by the Mackenzie Highway, where the river turns sharply west, then north. It continues through a 60m (200feet) deep canyon, then empties into the Mackenzie River, 60km (40miles) downstream from Jean Marie River and 95km (59miles) upstream from Mills Lake, at an elevation of .