| Tamanduateí River | |
|---|---|
| Native name | Rio Tamanduateí |
| Country | Brazil |
| Region | Greater São Paulo, São Paulo state |
| Basin features | |
| Main source | Serra do Mar, São Paulo state |
| River mouth | Rio Tietê, São Paulo city |
| Basin size | 320 km2 (120 sq mi) |
| Physical characteristics | |
| Length | 35 km (22 mi) |
The Tamanduateí River (in Portuguese: Rio Tamanduateí) is a river of São Paulo state in southeastern Brazil.