| Wolseley River | |
| Pushpin Map: | Canada Ontario |
| Pushpin Map Caption: | Location of the mouth of the Wolseley River in Ontario |
| Subdivision Type1: | Country |
| Subdivision Name1: | Canada |
| Subdivision Type2: | Province |
| Subdivision Name2: | Ontario |
| Subdivision Type3: | Region |
| Subdivision Name3: | Northeastern Ontario |
| Subdivision Type4: | Districts |
| Source1: | Unnamed lake |
| Source1 Location: | Servos Township, Sudbury District |
| Source1 Coordinates: | 46.2331°N -80.7153°W |
| Source1 Elevation: | 219m (719feet) |
| Mouth: | French River |
| Mouth Location: | West Nipissing, Nipissing District |
| Mouth Coordinates: | 46.1061°N -80.2653°W |
| Mouth Elevation: | 189m (620feet) |
| River System: | Lake Huron drainage basin |
| Tributaries Right: | Wolf River |
The Wolseley River is a river in Sudbury District and Nipissing District in Northeastern Ontario, Canada.[1] The river begins at an unnamed lake in geographic Servos Township[2] in the Unorganized North Part of Sudbury District, passes through the municipality of French River, then flows about 4km (02miles) through the municipality of West Nipissing in Nipissing District to Wolseley Bay on the French River adjacent to the community of Wolseley Bay (also part of the municipality of French River, Sudbury District).