Bujnów was formerly part of the German Empire. In the German Empire, the place was called Bujnów.
The place is now called Bujnów and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Bujnow | Russian Empire | Seradz | 1914 |
| Bujnów | Poland | Sieradz | 1921 |
| Bujnów | German Empire | Schieratz | 1939 |
| Bujnów | Poland | Sieradz | 1945 |
| Bujnów | Poland | Sieradz | 1992 |