| Osoiu River | |
| River | |
| Countries | Romania |
|---|---|
| Counties | Bihor County |
| Villages | Fâşca |
| Source | |
| - location | Pădurea Craiului Mountains |
| - elevation | 432 m (1,417 ft) |
| - coordinates | |
| Mouth | Topa |
| - location | Fâşca |
| - elevation | 370 m (1,214 ft) |
| - coordinates | |
The Osoiu River is a tributary of the Topa River in Romania.