| Type: | Ortsteil |
| Municipality: | Dähre |
| Image Coa: | DE-ST 15-0-81-095 Lagendorf COA.png |
| Coordinates: | 52.8333°N 10.85°W |
| State: | Sachsen-Anhalt |
| District: | Altmarkkreis Salzwedel |
| Elevation: | 62 |
| Area: | 38.62 |
| Population: | 490 |
| Stand: | 2006-12-31 |
| Postal Code: | 29413 |
| Area Code: | 039039 |
| Licence: | SAW |
Lagendorf is a village and a former municipality in the district Altmarkkreis Salzwedel, in Saxony-Anhalt, Germany. Since 1 January 2009, it is part of the municipality Dähre.