Osieczów was formerly part of the German Empire. In the German Empire, the place was called Aschitzau.
The place is now called Osieczów and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Aschitzau | German Empire | Bunzlau | 1939 |
| Osieczów | Under Polish administration | Bolesławiec | 1945 |
| Osieczów | Poland | Jelenia Góra | 1992 |