| name | image | Average flow (m³/s) | basin (m²) | Height (m) | origin location | mouth location | Length (m) | latitude (°) | longitude (°) | canyon | Map |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Szkwa |  | 482,000,000 | Narew | 103,000 | 53.1666666700 | 21.7000000000 | Map | ||||
| Bug (river) |  | 110 | 39,400,001,536 | 345 | Narew | 772,000 | 52.5069444400 | 21.0888888900 | Map | ||
| Gać (dopływ Narwi) |  | Narew | 22,780 | ||||||||
| Horodnianka (rzeka) |  | 76,000,000 | Narew | 24,800 | |||||||
| Klusówka | Narew | 18,670 | 52.5486110000 | 21.0808330000 | Map |