| Micoiu River | |
| Micoaia River | |
| River | |
| Countries | Romania |
|---|---|
| Counties | Alba County |
| Source | |
| - location | Bihor Mountains, Mount Curcubăta Mică |
| - elevation | 1,469 m (4,820 ft) |
| - coordinates | |
| Mouth | Arieşul Mic |
| - elevation | 912 m (2,992 ft) |
| - coordinates | |
The Micoiu River or Micoaia River is a tributary of the Arieşul Mic River in Romania.