Osiecko was formerly part of the German Empire. In the German Empire, the place was called Oscht.
The place is now called Osiecko and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Oscht | German Empire | Schwerin (Warthe) | before the Versailles Treaty |
| Oscht | German Empire | Schwerin (Warthe) | after the Versailles Treaty |
| Oscht | German Empire | Schwerin (Warthe) | 1939 |
| Osiecko | Under Polish administration | Skwierzyna | 1945 |
| Osiecko | Poland | Gorzów | 1992 |