| Bogdana | |
| Pushpin Map: | Romania |
| Subdivision Type1: | Country |
| Subdivision Name1: | Romania |
| Subdivision Type2: | Counties |
| Subdivision Name2: | Vaslui County |
| Subdivision Type3: | Villages |
| Subdivision Name3: | Bogdana, Coroiești, Cepești |
| Length: | 35km (22miles) |
| Mouth: | Simila |
| Mouth Coordinates: | 46.3207°N 27.6851°W |
| Progression: | Simila→ |
| Basin Size: | 91km2 |
The Bogdana is a left tributary of the river Simila in Romania. It flows into the Simila in Băcani.[1] Its length is 35km (22miles) and its basin size is 91km2.