Michałki was formerly part of the German Empire. In the German Empire, the place was called Michelsau.
The place is now called Michałki and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Michalken | German Empire | Neidenburg | 1938 |
| Michelsau | German Empire | Neidenburg | 1939 |
| Michałki | Under Polish administration | Nidzica | 1945 |
| Michałki | Poland | Olsztyn | 1992 |