Klucznik was formerly part of the German Empire. In the German Empire, the place was called Klausen.
The place is now called Klucznik and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Klutznik | German Empire | Allenstein | 1938 |
| Klausen | German Empire | Allenstein | 1939 |
| Klucznik | Under Polish administration | Olsztyn | 1945 |
| Klucznik | Poland | Olsztyn | 1992 |