| name | image | Average flow (m³/s) | basin (m²) | Height (m) | origin location | mouth location | Length (m) | latitude (°) | longitude (°) | canyon | Map |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Alfeios |  | 3,600,000,000 | 800 | Ionian Sea | 110,000 | 37.6125000000 | 21.4516670000 | Map | |||
| Allaro |  | 732 | 130,340,000 | 1,600 | Ionian Sea | 15,460 | 38.3500000000 | 16.4666666667 | Map | ||
| Bradano |  | 7 | 2,764,999,936 | 938 | Avigliano | Ionian Sea | 120,000 | 40.4170802778 | 16.8214777778 | Map | |
| Tellaro (river) |  | 388,940,000 | 840 | Ionian Sea | 45,000 | 36.8372825700 | 15.1063728300 | Map | |||
| Simeto |  | 25 | 4,185,999,872 | 1,700 | Ionian Sea | 113,000 | 37.8000000000 | 14.8000000000 | Map |