Osowa Sień Dolna was formerly part of the German Empire. In the German Empire, the place was called Röhrsdorf, Nieder.
The place is now called Osowa Sień Dolna and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Nieder-Röhrsdorf | German Empire | Fraustadt | before the Versailles Treaty |
| Nieder Röhrsdorf | German Empire | Fraustadt | after the Versailles Treaty |
| Röhrsdorf, Nieder | German Empire | Fraustadt | 1939 |
| Osowa Sień Dolna | Under Polish administration | Wschowa | 1945 |
| Osowa Sień Dolna | Poland | Leszno | 1992 |