Merlebach was formerly part of the German Empire. In the German Empire, the place was called Merlenbach-Freimengen 1.
The place is now called Merlebach and belongs to France.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Merlenbach | German Empire | Forbach | before the Versailles Treaty |
| Merlebach | France | Moselle | after the Versailles Treaty |
| Merlenbach-Freimengen 1 | German Empire | Sankt Avold | 1940 |
| Merlebach | France | Moselle | 1945 |
| Merlebach | France | Moselle | 1993 |