| name | image | Average flow (m³/s) | basin (m²) | Height (m) | origin location | mouth location | Length (m) | latitude (°) | longitude (°) | canyon | Map |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Zab |  | Tigris | |||||||||
| Diyala River |  | 130 | 32,600,000,512 | 2,000 | Tigris | 445,000 | 34.2895000000 | 45.1550000000 | Map | ||
| Gevi Çayı | 1,450,000,000 | Tigris | 630,000 | ||||||||
| Great Zab |  | 808 | 40,299,999,232 | Tigris | 400,000 | 35.9911000000 | 43.3436000000 | Map | |||
| Karkheh River |  | 220 | 41,999,998,976 | Tigris | 870,000 | 33.0958560000 | 47.5260580000 | Map |