| Yankee Fork | |
| Pushpin Map: | Idaho#USA |
| Pushpin Map Size: | 300 |
| Pushpin Map Caption: | Location of the mouth of Yankee Fork Salmon River in Idaho |
| Subdivision Type1: | Country |
| Subdivision Name1: | United States |
| Subdivision Type2: | State |
| Subdivision Name2: | Idaho |
| Length: | 28miles |
| Discharge1 Location: | near Clayton, about 0.5miles from the mouth |
| Discharge1 Min: | 10cuft/s |
| Discharge1 Avg: | 199cuft/s |
| Discharge1 Max: | 3360cuft/s |
| Source1: | Salmon River Mountains |
| Source1 Location: | Salmon–Challis National Forest |
| Source1 Coordinates: | 44.5164°N -114.6047°W[1] |
| Source1 Elevation: | 8600feet |
| Mouth: | Salmon River |
| Mouth Location: | Near Stanley |
| Mouth Coordinates: | 44.2697°N -114.7344°W |
| Mouth Elevation: | 5915feet |
| Basin Size: | 189sqmi[2] |
The Yankee Fork Salmon River is a 28miles[3] tributary of the Salmon River in Custer County, Idaho in the United States. It originates in the Salmon River Mountains, in the Salmon-Challis National Forest, and flows south to its confluence at Sunbeam, about 10miles east of Stanley.