| Plaiu River | |
| River | |
| Countries | Romania |
|---|---|
| Counties | Bihor County |
| Source | |
| - location | Bihor Mountains, Mount Bălileasa |
| - elevation | 911 m (2,989 ft) |
| - coordinates | |
| Mouth | Bulz |
| - location | Downstream of Boga |
| - elevation | 532 m (1,745 ft) |
| - coordinates | |
The Plaiu River is a tributary of the Bulz River in Romania.