| name | image | Average flow (m³/s) | basin (m²) | Height (m) | origin location | mouth location | Length (m) | latitude (°) | longitude (°) | canyon | Map |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Benedito River | Itajaí-Açu River | -26.8899000000 | -49.2357000000 | Map | |||||||
| Engano River (Itajaí River tributary) | Itajaí-Açu River | -26.8877000000 | -49.1900000000 | Map | |||||||
| Garcia River (Brazil) | Itajaí-Açu River | -26.9210000000 | -49.0594000000 | Map | |||||||
| Itajaí do Norte River | Itajaí-Açu River | -27.0594600000 | -49.4837500000 | Map | |||||||
| Itajaí do Oeste River | Itajaí-Açu River | -27.2153000000 | -49.6477000000 | Map |