Mysłaki was formerly part of the German Empire. In the German Empire, the place was called Prägsden.
The place is now called Mysłaki and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Groß Prägsden | German Empire | Mohrungen | 1914 |
| Prägsden | German Empire | Mohrungen | 1939 |
| Mysłaki | Under Polish administration | Morąg | 1945 |
| Mysłaki | Poland | Olsztyn | 1992 |