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