| Type: | Stadtteil |
| Town: | Zerbst |
| Image Coa: | DE-ST 15-0-82-430 Polenzko COA.png |
| Coordinates: | 52°N 27°W |
| State: | Sachsen-Anhalt |
| District: | Anhalt-Bitterfeld |
| Elevation: | 93 |
| Area: | 19.92 |
| Population: | 301 |
| Stand: | 2006-12-31 |
| Postal Code: | 39264 |
| Area Code: | 039248 |
| Licence: | ABI |
Polenzko is a village and a former municipality in the district of Anhalt-Bitterfeld, in Saxony-Anhalt, Germany. Since 1 January 2010, it is part of the town Zerbst.