Prusowy Borek was formerly part of the German Empire. In the German Empire, the place was called Preußenwalde.
The place is now called Prusowy Borek and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Prussowborrek | German Empire | Ortelsburg | 1932 |
| Preußenwalde | German Empire | Ortelsburg | 1939 |
| Prusowy Borek | Under Polish administration | Szczytno | 1945 |
| Prusowy Borek | Poland | Olsztyn | 1992 |