Syski was formerly part of the German Empire. In the German Empire, the place was called Syski.
The place is now called Syski and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Syski | Russian Empire | Petrokov | 1914 |
| Syski | Poland | Piotrków | 1921 |
| Syski | German Empire | Lask | 1939 |
| Syski | Poland | Łódź | 1945 |
| Syski | Poland | Piotrków | 1992 |