| Carp River | |
| Pushpin Map: | Canada Ontario |
| Pushpin Map Caption: | Location of the mouth of the Carp River in Ontario |
| Subdivision Type1: | Country |
| Subdivision Name1: | Canada |
| Subdivision Type2: | Province |
| Subdivision Name2: | Ontario |
| Subdivision Type3: | Region |
| Subdivision Name3: | Northeastern Ontario |
| Subdivision Type4: | District |
| Subdivision Name4: | Algoma |
| Subdivision Type5: | Part |
| Subdivision Name5: | Unorganized, North |
| Source1: | Unnamed lake |
| Source1 Coordinates: | 47.0572°N -84.5483°W |
| Source1 Elevation: | 545m (1,788feet) |
| Mouth: | Batchawana Bay on Lake Superior |
| Mouth Coordinates: | 46.945°N -84.58°W |
| Mouth Elevation: | 180m (590feet) |
| River System: | Great Lakes Basin |
| Tributaries Left: | East Carp River |
The Carp River is a river in the Unorganized North Part of Algoma District in Northeastern Ontario, Canada.[1] The river is in the Great Lakes Basin and is a tributary of Lake Superior.
The river begins at an unnamed lake in geographic Nicolet Township[2] and heads west, then turns south, enters geographic Palmer Township,[3] flows through the Cedar Lakes, and takes in the left tributary East Carp River. It continues south, passes into geographic Fisher Township,[4] takes in the left tributary Carp Creek arriving from Carp Lake, passes under Ontario Highway 17, and reaches Batchawana Bay on Lake Superior.
The mouth of the Carp River is at the west end of Batchawana Bay Provincial Park.