Lomnitz (Bz. Posen) was formerly part of the German Empire. In the German Empire, the place was called Lomnitz (Kr. Grätz, Wartheland).
The place is now called Łomnica and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Lomnitz (Bz. Posen) | German Empire | Meseritz | before the Versailles Treaty |
| Łomnica | Poland | Nowy Tomyśl | after the Versailles Treaty |
| Lomnitz | German Empire | Grätz (Wartheland) | 1939 |
| Lomnitz (Kr. Grätz, Wartheland) | German Empire | Grätz (Wartheland) | 1939 |
| Łomnica | Poland | Nowy Tomyśl | 1945 |
| Łomnica | Poland | Zielona Góra | 1992 |