Wągniki was formerly part of the German Empire. In the German Empire, the place was called Wangnick.
The place is now called Wągniki and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Wangnick | German Empire | Rastenburg | 1939 |
| Wągniki | Under Polish administration | Kętrzyn | 1945 |
| Wągniki | Poland | Olsztyn | 1992 |