Gruczno was formerly part of the German Empire. In the German Empire, the place was called Grützen.
The place is now called Gruczno and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Gruczno | German Empire | Kolberg (St.Kr.) | before the Versailles Treaty |
| Gruczno | Poland | Świecie | after the Versailles Treaty |
| Grützen | German Empire | Schwetz (Weichsel) | 1939 |
| Gruczno | Poland | Świecie | 1945 |
| Gruczno | Poland | Bydgoszcz | 1992 |