| Art: | Ortsteil |
| Municipality: | Duingen |
| Image Coa: | Wappen Weenzen.png |
| Coordinates: | 52.0333°N 49°W |
| State: | Niedersachsen |
| District: | Hildesheim |
| Elevation: | 230 |
| Area: | 4.16 |
| Population: | 362 |
| Stand: | 2015-12-31 |
| Postal Code: | 31096 |
| Area Code: | 05185 |
| Licence: | HI |
| Website: | www.Weenzen.de |
Weenzen is a village and a former municipality in the district of Hildesheim in Lower Saxony, Germany. Since 1 November 2016, it is part of the municipality Duingen.