Bucznik was formerly part of the German Empire. In the German Empire, the place was called Buchwalde.
The place is now called Bucznik and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Buchwalde | German Empire | Mohrungen | 1939 |
| Bucznik | Under Polish administration | Morąg | 1945 |
| Bucznik | Poland | Elbląg | 1992 |