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