| Mochau | |
| Type: | Stadtteil |
| Town: | Wittenberg |
| Coordinates: | 51.9333°N 53°W |
| State: | Sachsen-Anhalt |
| District: | Wittenberg |
| Elevation: | 134 |
| Area: | 10.96 |
| Population: | 568 |
| Stand: | 2006-12-31 |
| Postal Code: | 06888 |
| Area Code: | 03491 |
| Licence: | WB |
Mochau is a village and a former municipality in Wittenberg district in Saxony-Anhalt, Germany. Since 1 January 2009, it is part of the town Wittenberg.
Mochau lies about 7 km north of Lutherstadt Wittenberg in the Fläming.
Federal Highway (Bundesstraße) B 2 between Wittenberg and Berlin is about 2 km to the east.