Janowice was formerly part of the German Empire. In the German Empire, the place was called Jähnewitz.
The place is now called Janowice and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Janowice | Russian Empire | Nešava | 1914 |
| Janowice | Poland | Nieszawa | 1921 |
| Janowice | German Empire | Hermannsbad | 1939 |
| Jähnewitz | German Empire | Hermannsbad | 1939 |
| Janowice | Poland | Koło | 1945 |
| Janowice | Poland | Konin | 1992 |