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