| Esva | |
| River | |
| Country | Spain |
|---|---|
| State | Asturias |
| Source | |
| - location | Tineo |
| - elevation | 359 m (1,178 ft) |
| Mouth | |
| - location | Bay of Biscay |
| - elevation | 0 m (0 ft) |
| Length | 35 km (22 mi) |
| Basin | 450 km2 (174 sq mi) |
| Discharge | |
| - average | 10.65 m3/s (376 cu ft/s) |
The Esva is a river in northern Spain flowing through the Autonomous Community of Asturias.