| Type: | Ortsteil |
| Town: | Kalbe |
| Coordinates: | 52.7033°N 11.2933°W |
| State: | Sachsen-Anhalt |
| District: | Altmarkkreis Salzwedel |
| Elevation: | 36 |
| Area: | 16.72 |
| Population: | 307 |
| Stand: | 2009-12-31 |
| Postal Code: | 39624 |
| Area Code: | 039009 |
| Licence: | SAW |
| Website: | www.vg-salzwedel-land.de |
Zethlingen is a village and a former municipality in the district Altmarkkreis Salzwedel, in Saxony-Anhalt, Germany. Since 1 January 2011, it is part of the town Kalbe.