Leszczyniec was formerly part of the German Empire. In the German Empire, the place was called Haselbach.
The place is now called Leszczyniec and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Haselbach | German Empire | Landeshut i. Schles. | 1939 |
| Leszczyniec | Under Polish administration | Kamienna Góra | 1945 |
| Leszczyniec | Poland | Jelenia Góra | 1992 |