| Image Coa: | DEU Barnstedt COA.svg |
| Coordinates: | 53.1375°N 10.3733°W |
| Image Plan: | Barnstedt in LG.svg |
| State: | Niedersachsen |
| District: | Lüneburg |
| Samtgemeinde: | Ilmenau |
| Elevation: | 49 |
| Area: | 19.71 |
| Postal Code: | 21406 |
| Area Code: | 04134 |
| Licence: | LG |
| Gemeindeschlüssel: | 03 3 55 006 |
| Mayor: | Hans-Georg Brümmerhoff |
Barnstedt is a municipality in the district of Lüneburg, in Lower Saxony, Germany.