| Râul Oii | |
| (Valea Oilor River) | |
| River | |
| Countries | Romania |
|---|---|
| Counties | Iaşi County |
| Tributaries | |
| - left | Todireşti, Recea |
| Villages | Băiceni, Boureni, Balş |
| Mouth | Bahluieţ |
| Length | 31 km (19 mi) |
| Basin | 97 km2 (37 sq mi) |
| Official River Code | XIII.1.15.32.12.7 |
The Râul Oii or Valea Oilor River is a tributary of the Bahluieţ River in Romania. The Sârca storage reservoir is located on this river.