Witnica was formerly part of the German Empire. In the German Empire, the place was called Vietz (Ostb.).
The place is now called Witnica and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Vietz (Ostb.) | German Empire | Landsberg (Warthe) | 1939 |
| Witnica | Under Polish administration | Gorzów Wielkopolski | 1945 |
| Witnica | Poland | Gorzów | 1992 |