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