Obornik (Bz. Posen) was formerly part of the German Empire. In the German Empire, the place was called Obornik-Süd.
The place is now called Oborniki and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Obornik (Bz. Posen) | German Empire | Obornik/Obernick | before the Versailles Treaty |
| Oborniki | Poland | Oborniki | after the Versailles Treaty |
| Obernick | German Empire | Obernick | 1939 |
| Obornik-Nord | German Empire | Obernick | 1939 |
| Obornik-Süd | German Empire | Obernick | 1939 |
| Oborniki | Poland | Oborniki | 1945 |
| Oborniki | Poland | Poznań | 1992 |