Ostrowo was formerly part of the German Empire. In the German Empire, the place was called Scharfenwerder.
The place is now called Ostrowo and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Ostrowo b. Gembitz | German Empire | Strelno | before the Versailles Treaty |
| Ostrowo | Poland | Mogilno | after the Versailles Treaty |
| Ostrau | German Empire | Mogilno | 1939 |
| Scharfenberg | German Empire | Mogilno | 1939 |
| Scharfenwerder | German Empire | Mogilno | 1939 |
| Ostrowo p. Gebicami | Poland | Mogilno | 1945 |
| Ostrowo | Poland | Bydgoszcz | 1992 |