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