| Image Coa: | DEU Thomasburg COA.svg |
| Coordinates: | 53.2333°N 50°W |
| Image Plan: | Thomasburg in LG.svg |
| State: | Niedersachsen |
| District: | Lüneburg |
| Samtgemeinde: | Ostheide |
| Elevation: | 54 |
| Area: | 26.69 |
| Postal Code: | 21401 |
| Area Code: | 05859 |
| Licence: | LG |
| Gemeindeschlüssel: | 03 3 55 036 |
| Divisions: | 5 Ortsteile |
| Mayor: | Dieter Schröder |
| Party: | SPD |
Thomasburg is a municipality in the district of Lüneburg, in Lower Saxony, Germany.