| North Nahanni River | |
| Subdivision Type1: | Country |
| Source1 Location: | Backbone Ranges |
| Source1 Coordinates: | 62.2716°N -126.3986°W |
| Mouth Coordinates: | 62.2456°N -123.3287°W |
| Source1 Elevation: | 2000m (7,000feet) |
| Mouth Elevation: | 105m (344feet) |
North Nahanni River is a river in the Northwest Territories of Canada. It is a major tributary of the Mackenzie River.
The North Nahanni River originates in the Backbone Ranges of the Mackenzie Mountains, at an elevation of 2000m (7,000feet). It flows east, south of the Thundercloud Range, then turns north-east and east. It turns south around the Camsell Range of the Franklin Mountains, where it receives the waters of Deceiver Creek and Battlement Creek. It turns east after receiving the Ram River and Tetcela River and flows between the Nahanni Range and the Camsell Range. It empties into the Mackenzie River at an elevation of 105m (344feet), 110km (70miles) downstream from Fort Simpson.
From headwaters to mouth, the North nahanni River receives waters from the following tributaries: