Ellerbruch was formerly part of the German Empire. In the German Empire, the place was called Ellerbruch.
The place is now called Olszanka and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Ellerbruch | German Empire | Berent | before the Versailles Treaty |
| Ellerbruch | Free City of Danzig | Danziger Höhe | after the Versailles Treaty |
| Ellerbruch | German Empire | Danzig | 1939 |
| Olszanka | Poland | Pruszcz Gdański | 1945 |
| Olszanka | Poland | Gdańsk | 1992 |