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