Gravatai River
General data
- Name: Gravatai River
- Water system: Lagoa dos Patos
- Water type: River
- Progression: Guaiba River -> Lagoa dos Patos -> Rio Grande Channel -> Atlantic Ocean -> Planet Earth
- Climates: Tropical
- Continents: South America
- Countries: Brazil
Gravataí River (Portuguese pronunciation: [ɡɾavataˈi]) is a river that runs along Gravataí (a city located in the metropolitan area of Porto Alegre city).