| Rosenau | |
| Coordinates: | 52.3292°N 12.3581°W |
| Image Plan: | Rosenau in PM.png |
| State: | Brandenburg |
| District: | Potsdam-Mittelmark |
| Amt: | Wusterwitz |
| Elevation: | 40 |
| Area: | 49.36 |
| Postal Code: | 14789 |
| Area Code: | 033832 |
| Licence: | PM |
| Gemeindeschlüssel: | 12 0 69 537 |
| Divisions: | 4 Ortsteile |
| Website: | www.amt-wusterwitz.de |
| Mayor: | Denny Post[1] |
| Leader Term: | 2024 - 29 |
Rosenau is a municipality in the Potsdam-Mittelmark district, in Brandenburg, Germany.