| Type: | Ortsteil |
| Municipality: | Flechtingen |
| Image Coa: | DE-ST 15-0-83-230 Belsdorf COA.png |
| Coordinates: | 52.3333°N 20°W |
| State: | Sachsen-Anhalt |
| District: | Börde |
| Elevation: | 127 |
| Area: | 9.94 |
| Population: | 196 |
| Stand: | 2006-12-31 |
| Postal Code: | 39356 |
| Area Code: | 039055 |
| Licence: | BK |
Belsdorf is a village and a former municipality in the Börde district in Saxony-Anhalt, Germany. Since 1 January 2010, it is part of the municipality Flechtingen.