Manhuacu River
General data
- Name: Manhuacu River
- Water system: Doce River
- Water type: River
- Progression: Doce River -> Atlantic Ocean -> Planet Earth
- Climates: Tropical
- Continents: South America
- Countries: Brazil
The ManhuaƧu River is a river of Minas Gerais state in southeastern Brazil. The river is in the Doce River basin. It runs past the Feliciano Miguel Abdala Private Natural Heritage Reserve, located on its left bank, home to one of the last wild populations of northern muriqui woolly spider monkeys.