Alaincourt was formerly part of the German Empire. In the German Empire, the place was called Allenhofen.
The place is now called Alaincourt-la-Côte and belongs to France.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Alaincourt | German Empire | Château-Salins | before the Versailles Treaty |
| Allenhofen | German Empire | Château-Salins | before the Versailles Treaty |
| Alaincourt-la-Côte | France | Moselle | after the Versailles Treaty |
| Allenhofen | German Empire | Salzburgen | 1940 |
| Alaincourt-la-Côte | France | Moselle | 1945 |
| Alaincourt-la-Côte | France | Moselle | 1993 |