| Valea Beliei | |
| Pushpin Map: | Romania |
| Subdivision Type1: | Country |
| Subdivision Name1: | Romania |
| Subdivision Type2: | Counties |
| Subdivision Name2: | Prahova County |
| Length: | 11km (07miles) |
| Mouth: | Prahova |
| Mouth Location: | Gura Beliei |
| Mouth Coordinates: | 45.2226°N 25.6421°W |
| Basin Size: | 36km2 |
| Tributaries Right: | Talea |
The Valea Beliei is a right tributary of the river Prahova in Romania. It discharges into the Prahova in Gura Beliei. Its length is 11km (07miles) and its basin size is 36km2.