| Little Rapid River | |
| Subdivision Type1: | Country |
| Subdivision Name1: | Canada |
| Subdivision Type2: | Province |
| Subdivision Name2: | Ontario |
| Subdivision Type4: | District |
| Subdivision Name4: | Algoma |
| Length: | 18.2km (11.3miles) |
| Source1: | Unnamed pond |
| Source1 Coordinates: | 46.8047°N -83.0756°W |
| Source1 Elevation: | 447m (1,467feet) |
| Mouth: | Rapid River |
| Mouth Coordinates: | 46.7572°N -83.2461°W |
| Mouth Elevation: | 409m (1,342feet) |
The Little Rapid River is a river in Algoma District, Ontario, Canada. The river begins at an unnamed pond at an elevation of 447m (1,467feet), travels about 18.2km (11.3miles), and reaches its mouth at the Rapid River, just downstream of Seymour Lake, at an elevation of 409m (1,342feet).