| Kelso River | |
| Pushpin Map: | Minnesota |
| Pushpin Map Caption: | Mouth of Kelso River |
| Subdivision Type1: | Country |
| Subdivision Name1: | United States |
| Subdivision Type2: | State |
| Subdivision Name2: | Minnesota |
| Subdivision Type3: | County |
| Subdivision Name3: | Cookk County |
| Length: | 4adj=midNaNadj=mid |
| Source1 Location: | Kelso Mountain |
| Source1 Coordinates: | 47.9369°N -90.9186°W |
| Mouth Location: | Kelso Mountain |
The Kelso River is a 4adj=midNaNadj=mid[1] stream in northern Minnesota, the United States. It flows entirely within the Boundary Waters Canoe Area Wilderness of Superior National Forest, ending at Sawbill Lake. Water from the Kelso River flows via Sawbill Creek (the outlet of Sawbill Lake) to the Temperance River and thence to Lake Superior.