Jażyniec was formerly part of the German Empire. In the German Empire, the place was called Niedermoor.
The place is now called Jażyniec and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Jazyniec | German Empire | Bomst | before the Versailles Treaty |
| Jażyniec | Poland | Wolsztyn | after the Versailles Treaty |
| Niedermoor | German Empire | Wollstein | 1939 |
| Jażdżyniec | Poland | Wolsztyn | 1945 |
| Jażyniec | Poland | Zielona Góra | 1992 |