| name | image | Average flow (m³/s) | basin (m²) | Height (m) | origin location | mouth location | Length (m) | latitude (°) | longitude (°) | canyon | Map |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Lek (river) |  | Nieuwe Maas | 62,000 | 51.8903400000 | 4.6315600000 | Map | |||||
| Noord (river) |  | Nieuwe Maas | 9,000 | 51.8511110000 | 4.6577780000 | Map |