| Tărhăuș River | |
| Tarhavas | |
| River | |
| Countries | Romania |
|---|---|
| Counties | Bacău County |
| Tributaries | |
| - right | Ciudomir |
| Villages | Tărhăuși |
| Source | Tarcău Mountains |
| Mouth | Trotuș |
| - location | Tărhăuși |
| - coordinates | 46°34′10″N 26°04′31″E / 46.5695°N 26.0754°ECoordinates: 46°34′10″N 26°04′31″E / 46.5695°N 26.0754°E |
| Length | 12 km (7 mi) |
| Basin | 41 km2 (16 sq mi) |
| Progression | Trotuș→ Siret→ Danube→ Black Sea |
The Tărhăuș River (Hungarian: Tarhavas-pataka, meaning Bold Alp's Creek) is a left tributary of the river Trotuș in Romania. It discharges into the Trotuș in Tărhăuși.