| Valea Cerbului | |
| Pushpin Map: | Romania |
| Subdivision Type1: | Country |
| Subdivision Name1: | Romania |
| Subdivision Type2: | Counties |
| Subdivision Name2: | Prahova County |
| Length: | 7km (04miles) |
| Source1: | Bucegi Mountains |
| Source1 Coordinates: | 45.4333°N 25.4533°W |
| Source1 Elevation: | 2352m (7,717feet) |
| Mouth: | Prahova |
| Mouth Location: | Bușteni |
| Mouth Coordinates: | 45.4186°N 25.5411°W |
| Mouth Elevation: | 584m (1,916feet) |
| Basin Size: | 26km2 |
| Custom Label: | River code |
| Custom Data: | XI.1.20.2 |
The Valea Cerbului is a right tributary of the river Prahova in Romania. It source is in the Bucegi Mountains. It flows into the Prahova in Bușteni.[1] Its length is 7km (04miles) and its basin size is 26km2.
The following rivers are tributaries to the river Valea Cerbului (from source to mouth):