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