| Herja River | |
| Herzsa-patak | |
| River | |
| Countries | Romania |
|---|---|
| Region | Transylvania |
| Counties | Alba County |
| Tributaries | |
| - left | Valea Negrului, Valea Iezerului |
| Source | |
| - location | Trascău Mountains |
| Mouth | Mureş |
The Herja River (Hungarian: Herzsa-patak) is a tributary of the Mureş River in Transylvania, Romania.