| Negostina | |
| Pushpin Map: | Romania |
| Subdivision Type1: | Country |
| Subdivision Name1: | Romania |
| Subdivision Type2: | Counties |
| Subdivision Name2: | Suceava County |
| Subdivision Type3: | Villages and towns |
| Subdivision Name3: | Negostina, Siret |
| Length: | 9km (06miles) |
| Mouth: | Siret |
| Mouth Location: | Siret |
| Mouth Coordinates: | 47.9577°N 26.0821°W |
| Basin Size: | 23km2 |
The Negostina is a right tributary of the river Siret in Romania. It flows into the Siret in the town Siret. The basin size of the 9km (06miles) long Negostina is 23km2. A 14th-century castle, built by prince Sas of Moldavia is located on its banks.