Ostromecko was formerly part of the German Empire. In the German Empire, the place was called Ostermetz.
The place is now called Ostromecko and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Ostrometzko | German Empire | Kulm | before the Versailles Treaty |
| Ostromecko | Poland | Chelmno | after the Versailles Treaty |
| Ostermetz | German Empire | Kulm (Weichsel) | 1939 |
| Ostromecko | Poland | Chelmno | 1945 |
| Ostromecko | Poland | Bydgoszcz | 1992 |