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