Gasin was formerly part of the German Empire. In the German Empire, the place was called Gąsin.
The place is now called Gąsin and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Gasin | Russian Empire | Turek | 1914 |
| Gąsin | Poland | Turek | 1921 |
| Gąsin | German Empire | Turek | 1939 |
| Gąsin | Poland | Turek | 1945 |
| Gąsin | Poland | Konin | 1992 |