Ostre was formerly part of the German Empire. In the German Empire, the place was called Ostre.
The place is now called Ostre and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Ostre | Austro-Hungary | Saybusch/Żywiec | before the Treaty of Saint-Germain |
| Ostre | Poland | Żywiec | after the Treaty of Saint-Germain |
| Ostre | German Empire | Saybusch | 1939 |
| Ostre | Poland | Bielsko-Biala | 1945 |
| Ostre | Poland | Bielsko | 1992 |