Gizyn was formerly part of the German Empire. In the German Empire, the place was called Gizyno.
The place is now called Giżyno and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Gizyn | Russian Empire | Mlava | 1914 |
| Giżyn | Poland | Mława | 1919 |
| Gizyno | German Empire | Mielau | 1939 |
| Giżyno | Poland | Mława | 1945 |
| Giżyno | Poland | Ciechanów | 1992 |