Leszczynki was formerly part of the German Empire. In the German Empire, the place was called Sandnußdorf.
The place is now called NN and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Nußdorf | German Empire | Karthaus | before the Versailles Treaty |
| Niedeckerhütte | German Empire | Karthaus | before the Versailles Treaty |
| Leszczynki | Poland | Kartuzy | after the Versailles Treaty |
| Kamieńska Huta | Poland | Kartuzy | after the Versailles Treaty |
| Sandnußdorf | German Empire | Karthaus (Westpr.) | 1939 |
| Leszczynki | Poland | Kartuzy | 1945 |
| Kamienicka Huta | Poland | Kartuzy | 1945 |
| Leszczynki | Poland | Gdańsk | 1992 |
| NN | Poland | Gdańsk | 1992 |