| Little Shashiskau River | |
| Pushpin Map: | Canada Ontario |
| Pushpin Map Caption: | Location of the mouth of the Little Shashiskau 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: | Unnamed lake |
| Source1 Coordinates: | 50.2253°N -80.0086°W |
| Source1 Elevation: | 289m (948feet) |
| Mouth: | Shashiskau Lake on the Shashiskau River |
| Mouth Coordinates: | 50.3161°N -80.0292°W |
| Mouth Elevation: | 257m (843feet) |
| River System: | James Bay drainage basin |
The Little Shashiskau River is a river in northern Cochrane District in Northeastern Ontario, Canada.[1] It is part of the James Bay drainage basin, and is a right tributary of the Shashiskau River.
The river begins at an unnamed lake in the Shashiskau Hills and flows north then northwest to Shashiskau Lake as a right tributary of the Shashiskau River. The Shashiskau River flows via the Kesagami River and the Harricana River to James Bay.