| North Fork Salmon River | |
| Pushpin Map: | USA Idaho#USA |
| Pushpin Map Size: | 300 |
| Pushpin Map Caption: | Location of the mouth of the North Fork Salmon River in Idaho |
| Subdivision Type1: | Country |
| Subdivision Name1: | United States |
| Subdivision Type2: | State |
| Subdivision Name2: | Idaho |
| Length: | 24miles |
| Discharge1 Location: | North Fork |
| Discharge1 Min: | 28cuft/s |
| Discharge1 Avg: | 90.4cuft/s |
| Discharge1 Max: | 901cuft/s |
| Source1: | Lewis and Clark Ridge |
| Source1 Coordinates: | 45.7006°N -113.9747°W[1] |
| Source1 Elevation: | 7960feet |
| Mouth: | Salmon River |
| Mouth Coordinates: | 45.4053°N -113.9947°W |
| Mouth Elevation: | 3625feet |
| Basin Size: | 211sqmi[2] |
The North Fork Salmon River is a 24miles[3] tributary of the Salmon River, flowing through east-central Idaho in the United States. It joins the Salmon River about 20miles north of the town of Salmon, in Lemhi County.