Okunin was formerly part of the German Empire. In the German Empire, the place was called Okunin.
The place is now called Okunin and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Okunin | Russian Empire | Varšava | 1914 |
| Okunin | Poland | Warszawa | 1919 |
| Okunin | German Empire | Plöhnen | 1939 |
| Okunin (Nowy Dwór Mazowiecki-Okunin) | Poland | Nowy Dwór Mazowiecki | 1945 |
| Okunin | Poland | Warszawa | 1992 |