Buquira River
General data
- Name: Buquira River
- Water system: Paraiba do Sul River
- Water type: River
- Progression: Paraiba do Sul River -> Atlantic Ocean -> Planet Earth
- Climates: Tropical
- Continents: South America
- Countries: Brazil
The Buquira River (Portuguese: Rio Buquira) is a river of São Paulo state in southeastern Brazil. It is a tributary of the Paraíba do Sul. The headwaters are protected by the 292,000 hectares Mananciais do Rio Paraíba do Sul Environmental Protection Area, created in 1982 to protect the sources of the Paraíba do Sul river.