Łękno was formerly part of the German Empire. In the German Empire, the place was called Bast.
The place is now called Łękno and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Bast | German Empire | Köslin | 1939 |
| Łękno | Under Polish administration | Koszalin | 1945 |
| Łękno | Poland | Koszalin | 1992 |