| Dereaua River | |
| River | |
| Countries | Romania |
|---|---|
| Counties | Constanţa County |
| Villages | Moviliţa |
| Mouth | Black Sea |
| - location | Lake Techirghiol |
| Length | 7 km (4 mi) |
| Basin | 25 km2 (10 sq mi) |
| Official River Code | XV.1.11 |
The Dereaua River is a tributary of the Black Sea, Lake Techirghiol in Romania.