Groß-Katz was formerly part of the German Empire. In the German Empire, the place was called Großkatz.
The place is now called Wielki Kack (Gdynia-Wielki Kack) and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Groß-Katz | German Empire | Neustadt i. Westpr. | before the Versailles Treaty |
| Wielki Kack | Poland | Wejherowo | after the Versailles Treaty |
| Großkatz | German Empire | Neustadt (Westpr.) | 1939 |
| Wielki Kack (Gdynia-Wielki Kack) | Poland | Gdynia m. | 1945 |
| Wielki Kack (Gdynia-Wielki Kack) | Poland | Gdańsk | 1992 |