| Type: | Ortsteil |
| Town: | Oranienbaum-Wörlitz |
| Coordinates: | 51.8006°N 12.4342°W |
| State: | Sachsen-Anhalt |
| District: | Wittenberg |
| Elevation: | 62 |
| Area: | 5.38 |
| Population: | 582 |
| Stand: | 2009-12-31 |
| Postal Code: | 06785 |
| Area Code: | 034904 |
| Licence: | WB |
Kakau is a village and a former municipality in the district of Wittenberg, Saxony-Anhalt, Germany. Since 1 January 2011, it is part of the town Oranienbaum-Wörlitz.