| Little Saint Roch River | |
| Mouth Location: | Shields Branch Big Black River |
| Subdivision Type1: | Country |
| Subdivision Name1: | Canada, United States |
| Mouth Elevation: | 865feet |
The Little Saint Roch River (French: Rivière du Rochu) is a river in Quebec and Maine. From its source (47.118°N -69.749°W), in L'Islet RCM, the river runs south and southeast across the Canada–United States border to the Shields Branch of the Big Black River in Maine Township 15, Range 15, WELS.