| Image Coa: | DEU Jelmstorf COA.svg |
| Coordinates: | 53.1022°N 10.5247°W |
| Image Plan: | Jelmstorf in UE.svg |
| State: | Niedersachsen |
| District: | Uelzen |
| Samtgemeinde: | Bevensen-Ebstorf |
| Elevation: | 44 |
| Area: | 13.71 |
| Postal Code: | 29585 |
| Area Code: | 05821 |
| Licence: | UE |
| Gemeindeschlüssel: | 03 3 60 012 |
| Divisions: | 3 |
| Mayor: | Norbert Brandl |
| Party: | CDU |
Jelmstorf is a municipality in the district of Uelzen, in Lower Saxony, Germany.