Olszowka was formerly part of the German Empire. In the German Empire, the place was called Olszówka.
The place is now called Olszówka and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Olszowka | Russian Empire | Turek | 1914 |
| Olszówka | Poland | Turek | 1921 |
| Olszówka | German Empire | Turek | 1939 |
| Olszówka | Poland | Turek | 1945 |
| Olszówka | Poland | Konin | 1992 |