Žagmantai was formerly part of the German Empire. In the German Empire, the place was called Szagmanten, Groß.
The place is now called Žagmantai and belongs to Lithuania.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Groß-Szagmanten | German Empire | Ragnit | before the Versailles Treaty |
| Žagmantai | Lithuania | Pajėgiai | after the Versailles Treaty |
| Szagmanten, Groß | German Empire | Tilsit-Ragnit | 1939 |
| Žagmantai | Soviet Union | Pagėgiai/Pagegjaj | 1945 |
| Žagmantaj | Soviet Union | Pagėgiai/Pagegjaj | 1945 |
| Žagmantai | Lithuania | Šilutė | 1992 |