| Dornișoara | |
| Pushpin Map: | Romania |
| Subdivision Type1: | Country |
| Subdivision Name1: | Romania |
| Subdivision Type2: | Counties |
| Subdivision Name2: | Bistrița-Năsăud, Suceava |
| Subdivision Type3: | Villages |
| Subdivision Name3: | Căsoi |
| Length: | 18km (11miles) |
| Mouth: | Dorna |
| Mouth Location: | Poiana Stampei |
| Mouth Coordinates: | 47.3081°N 25.1349°W |
| Basin Size: | 47km2 |
| Tributaries Left: | Pârâul Ioniță, Trifon, Grebla |
The Dornișoara is a left tributary of the river Dorna in Romania.[1] It flows into the Dorna in Poiana Stampei.[2] Its length is 18km (11miles) and its basin size is 47km2.