| Arin River | |
| River | |
| Countries | Romania |
|---|---|
| Counties | Bistriţa-Năsăud County |
| Source | |
| - location | Rodna Mountains, Mount Cobăşel |
| - elevation | 1,189 m (3,901 ft) |
| - coordinates | |
| Mouth | Someşul Mare River |
| - elevation | 743 m (2,438 ft) |
| - coordinates | |
The Arin River is a tributary of the Someşul Mare River in Romania.