Trześniówek was formerly part of the German Empire. In the German Empire, the place was called Groß Kirschbaum.
The place is now called Trześniówek and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Groß Kirschbaum | German Empire | Oststernberg | 1939 |
| Trześniówek | Under Polish administration | Sulęcin | 1945 |
| Trześniówek | Poland | Gorzów | 1992 |