Kozarek Wielki was formerly part of the German Empire. In the German Empire, the place was called Köhlersgut.
The place is now called Kozarek Wielki and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Groß Kosarken-Dönhoffstädt | German Empire | Sensburg | 1938 |
| Köhlersgut | German Empire | Sensburg | 1939 |
| Kozarek Wielki | Under Polish administration | Mrągowo | 1945 |
| Kozarek Wielki | Poland | Olsztyn | 1992 |