Łysak was formerly part of the German Empire. In the German Empire, the place was called Kahlfelde.
The place is now called Łysak and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Lysack | German Empire | Ortelsburg | 1938 |
| Kahlfelde | German Empire | Ortelsburg | 1939 |
| Łysak | Under Polish administration | Szczytno | 1945 |
| Łysak | Poland | Olsztyn | 1992 |