| MacFarlane River | |
|---|---|
&sq=Qlik&lang=&file=File:Canada_Ontario_relief_location_map.jpg)  Location of the mouth of the MacFarlane River in Ontario | |
| Location | |
| Country | Canada |
| Province | Ontario |
| Region | Northwestern Ontario |
| District | Kenora |
| Part | Kenora, Unorganized |
| Physical characteristics | |
| Source | Rocky Lake |
| • coordinates | 50°00′50″N 94°16′16″W / 50.01389°N 94.27111°W |
| • elevation | 345 m (1,132 ft) |
| Mouth | Winnipeg River |
• coordinates | 49°56′08″N 94°33′23″W / 49.93556°N 94.55639°W |
• elevation | 315 m (1,033 ft) |
| Basin features | |
| River system | Hudson Bay drainage basin |
The MacFarlane River is a river in Unorganized Kenora District in northwestern Ontario, Canada and a tributary of the Winnipeg River. Locally it has been called the "Black River", a reference to the dark tannin stained water.