| Lawagamau River | |
| Name Other: | Kattawagami River |
| Pushpin Map: | Canada Ontario |
| Pushpin Map Caption: | Location of the mouth of the Lawagamau 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: | Cochrane |
| Source1: | Upper Lawagamau Lake |
| Source1 Coordinates: | 49.7378°N -79.9911°W |
| Source1 Elevation: | 304m (997feet) |
| Mouth: | Kesagami River |
| Mouth Coordinates: | 51.0658°N -79.7319°W |
| Mouth Elevation: | 1m (03feet) |
| River System: | James Bay drainage basin |
| Tributaries Left: | Hoelke Creek |
| Tributaries Right: | Hopper Creek |
The Lawagamau River, also known as the Kattawagami River,[1] [2] is a river in northern Cochrane District in Northeastern Ontario, Canada.[3] It is part of the James Bay drainage basin, and is a right tributary of the Kesagami River.
The river begins at Upper Lawagamau Lake and heads north through Lawagamau Lake and under Ontario Highway 652. It turns northeast then east, takes in the right tributary Hopper Creek, then once again heads north. The river takes in the left tributary Hoelke Creek, and reaches its mouth at the Kesagami River. The Kesagami River flows via the Harricana River to James Bay.