Sliwniki was formerly part of the German Empire. In the German Empire, the place was called Śliwniki.
The place is now called Kolonia Śliwniki and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Sliwniki | Russian Empire | Lenčica | 1914 |
| Kolonja Sliwniki | Russian Empire | Lenčica | 1914 |
| Śliwniki | Poland | Łęczyca | 1921 |
| Kolonja Śliwniki | Poland | Łęczyca | 1921 |
| Śliwniki | German Empire | Lentschütz | 1939 |
| Śliwniki Stare | Poland | Łęczyca | 1945 |
| Śliwniki Nowe | Poland | Łęczyca | 1945 |
| Śliwniki | Poland | Łódź | 1992 |
| Kolonia Śliwniki | Poland | Łódź | 1992 |