Ralja (river)
| Ralja (Раља) | |
|---|---|
River Ralja near the village of Ralja (Smederevo)  | |
| Location | |
| Country | Serbia | 
| Physical characteristics | |
| Source | |
| • location | Kosmaj mountain, west of Velika Ivanča | 
| Mouth | |
 • location  | Jezava, at Radinac | 
 • coordinates  | 44°36′52″N 20°59′19″E / 44.6145°N 20.9886°E | 
| Length | 51 km (32 mi) | 
| Basin size | 310 km2 (120 sq mi) | 
| Basin features | |
| Progression | Jezava→ Great Morava→ Danube→ Black Sea | 
The Ralja (Serbian Cyrillic: Раља) is a river in the Šumadija region of Serbia. It is a 51 km long left tributary to the Jezava, a distributary of the Great Morava river. It also gives its name to the surrounding Šumadija's subregion of Ralja.