| Coordinates: | 52.1333°N 61°W |
| Image Plan: | Dahlum in WF.svg |
| State: | Niedersachsen |
| District: | Wolfenbüttel |
| Samtgemeinde: | Elm-Asse |
| Elevation: | 157 |
| Area: | 15.12 |
| Postal Code: | 38170 |
| Area Code: | 05332 |
| Licence: | WF |
| Gemeindeschlüssel: | 03 1 58 007 |
| Divisions: | 2 |
| Mayor: | Reinhard Eberlein |
Dahlum is a municipality in the district of Wolfenbüttel, in Lower Saxony, Germany.