Little Gratiot River
General data
- Name: Little Gratiot River
- Water system: St. Lawrence River
- Water type: River
- Progression: Lac La Belle (Michigan) -> Mendota Canal -> Lake Superior -> St. Marys River (Michigan–Ontario) -> Lake Huron -> St. Clair River -> Lake St. Clair (North America) -> Detroit River -> Lake Erie -> Niagara River -> Lake Ontario -> St. Lawrence River -> Gulf of St. Lawrence -> Atlantic Ocean -> Planet Earth
- Climates: Continental
- Continents: North America
- Countries: United States of America
The Little Gratiot River is an 11.2-mile-long (18.0 km) river in Keweenaw County on the Upper Peninsula of Michigan in the United States. It flows from Lake Gratiot into Lac La Belle, which connects with Lake Superior.