| name | image | Average flow (m³/s) | basin (m²) | Height (m) | origin location | mouth location | Length (m) | latitude (°) | longitude (°) | canyon | Map |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Água Quente River (Maranhão) | Parnaíba River | -9.9402777778 | -45.8408333333 | Map | |||||||
| Buriti River (Maranhão) | Parnaíba River | -3.2833333333 | -42.1166666667 | Map | |||||||
| Canindé River (Piauí) | 74,999,996,416 | 522 | Parnaíba River | 350,000 | -6.2580555556 | -42.8472222222 | Map | ||||
| Das Balsas River (Maranhão) |  | Parnaíba River | 525,000 | -7.2255555556 | -44.6136111111 | Map | |||||
| Longá River | Parnaíba River | -3.1547200000 | -41.9319000000 | Map |