Niwnica was formerly part of the German Empire. In the German Empire, the place was called Neunz.
The place is now called Niwnica and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Neunz | German Empire | Neisse | 1939 |
| Niwnica | Under Polish administration | Nysa | 1945 |
| Niwnica | Poland | Opole | 1992 |