| Black Duck River | |
| Pushpin Map: | Canada Manitoba |
| Pushpin Map Caption: | Location of the mouth of the Black Duck River in Manitoba |
| Subdivision Type1: | Country |
| Subdivision Name1: | Canada |
| Subdivision Type2: | Provinces |
| Source1: | Hosea Lake |
| Source1 Location: | Kenora District, Ontario |
| Source1 Coordinates: | 55.9467°N -90.2247°W |
| Source1 Elevation: | 152m (499feet) |
| Mouth: | Hudson Bay |
| Mouth Location: | Northern Region, Manitoba |
| Mouth Coordinates: | 56.8514°N -89.0372°W |
| Mouth Elevation: | 0m (00feet) |
| River System: | Hudson Bay drainage basin |
The Black Duck River is a river in the provinces of Manitoba and Ontario, Canada.[1] [2] Flowing northeast from Hosea Lake in Kenora District in Northwestern Ontario, the river criss-crosses the Manitoba-Ontario border before reaching to its mouth at Hudson Bay in the Northern Region of Manitoba just west of Manitoba's easternmost point where the inter-provincial border meets the bay.[3]
The river starts at Hosea Lake and ends at Hudson Bay.