Kaczagórka was formerly part of the German Empire. In the German Empire, the place was called Katzagurka.
The place is now called Kaczagórka and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Kaczagorka | German Empire | Koschmin | before the Versailles Treaty |
| Kaczagórka | Poland | Krotoszyn | after the Versailles Treaty |
| Katzagurka | German Empire | Krotoschin | 1939 |
| Kacza Górka | Poland | Krotoszyn | 1945 |
| Kaczagórka | Poland | Leszno | 1992 |