| Bistrișoara | |
| Pushpin Map: | Romania |
| Subdivision Type1: | Country |
| Subdivision Name1: | Romania |
| Subdivision Type2: | Counties |
| Subdivision Name2: | Alba County |
| Subdivision Type3: | Villages |
| Subdivision Name3: | Cheleteni, Bistra |
| Length: | 13km (08miles) |
| Mouth: | Arieș |
| Mouth Location: | Bistra |
| Mouth Coordinates: | 46.3755°N 23.0974°W |
| Basin Size: | 22km2 |
The Bistrișoara is a left tributary of the Arieș in Romania. It flows into the Arieș in Bistra. Its length is 13km (08miles) and its basin size is 22km2.