Éguelshardt was formerly part of the German Empire. In the German Empire, the place was called Egelshardt (b. Bitsch).
The place is now called Éguelshardt and belongs to France.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Egelshardt | German Empire | Saargemünd | before the Versailles Treaty |
| Éguelshardt | France | Moselle | after the Versailles Treaty |
| Egelshardt | German Empire | Saargemünd | 1940 |
| Egelshardt (b. Bitsch) | German Empire | Saargemünd | 1940 |
| Éguelshardt | France | Moselle | 1945 |
| Éguelshardt | France | Moselle | 1993 |