Leśnianki was formerly part of the German Empire. In the German Empire, the place was called Johannisdorf.
The place is now called Leśnianki and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Johannisdorf | German Empire | Inowrazlaw | before the Versailles Treaty |
| Leśnianki | Poland | Inowrocław | after the Versailles Treaty |
| Johannisdorf | German Empire | Hohensalza | 1939 |
| Leśnianki | Poland | Inowrocław | 1945 |
| Leśnianki | Poland | Bydgoszcz | 1992 |