| name | image | Average flow (m³/s) | basin (m²) | Height (m) | origin location | mouth location | Length (m) | latitude (°) | longitude (°) | canyon | Map |
|---|---|---|---|---|---|---|---|---|---|---|---|
| River Ayr |  | 574,000,000 | 260 | Firth of Clyde | 65,000 | 55.4680300000 | -4.6386300000 | Map | |||
| River Clyde |  | 4,000,000,000 | 278 | Firth of Clyde | 176,000 | 55.7147350000 | -4.9825290000 | Map | |||
| River Irvine |  | 380,000,000 | Firth of Clyde | 42,000 | 55.6086800000 | -4.6838700000 | Map | ||||
| River Garnock |  | Firth of Clyde | 39,000 | 55.6081890000 | -4.6900260000 | Map |