Feldum was formerly part of the German Empire. In the German Empire, the place was called Feldum.
The place is now called Feldum (Haderslev-Feldum) and belongs to Denmark.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Feldum | German Empire | Hadersleben | before the Versailles Treaty |
| Feldum | Denmark | Haderslev | after the Versailles Treaty |
| Feldum (Haderslev-Feldum) | Denmark | Sønderjylland | 1993 |