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