| Type: | Ortsteil |
| Town: | Oranienbaum-Wörlitz |
| Image Coa: | kein |
| Coordinates: | 51.8167°N 40°W |
| State: | Sachsen-Anhalt |
| District: | Wittenberg |
| Elevation: | 62 |
| Area: | 6.13 |
| Population: | 198 |
| Stand: | 2014-12-31 |
| Postal Code: | 06785 |
| Area Code: | 034905 |
| Licence: | WB |
Riesigk is a village and a former municipality in Germany not far from the town of Wittenberg in the district of Wittenberg, Saxony-Anhalt, on the south side of the Elbe river. Since 1 January 2011, it is part of the town Oranienbaum-Wörlitz. It has a population of about 198 (2014).
The village was chartered in 1200 the first time with the name Riswig.