| Type: | Ortsteil |
| Municipality: | Muldestausee |
| Image Coa: | DE-ST 15-0-82-241 Roesa COA.png |
| Coordinates: | 51.6167°N 42°W |
| State: | Sachsen-Anhalt |
| District: | Anhalt-Bitterfeld |
| Elevation: | 84 |
| Area: | 21.12 |
| Population: | 916 |
| Stand: | 2006-12-31 |
| Postal Code: | 06774 |
| Area Code: | 034208 |
| Licence: | ABI |
Rösa is a village and a former municipality in the district of Anhalt-Bitterfeld, in Saxony-Anhalt, Germany. Since 1 January 2010, it has been part of the municipality Muldestausee.[1]