| Type: | Stadtteil |
| Town: | Coswig (Anhalt) |
| Image Coa: | DE-ST 15-0-91-060 Serno COA.png |
| Coordinates: | 52°N 37°W |
| State: | Sachsen-Anhalt |
| District: | Wittenberg |
| Elevation: | 119 |
| Area: | 33.86 |
| Population: | 443 |
| Stand: | 2006-12-31 |
| Postal Code: | 06862 |
| Area Code: | 034907 |
| Licence: | WB |
Serno is a village and a former municipality in the district of Wittenberg, Saxony-Anhalt, Germany. Since 1 January 2009, it is part of the town Coswig (Anhalt).