Łączki was formerly part of the German Empire. In the German Empire, the place was called Moorwies.
The place is now called Łączki and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Städtisch Lonczek | German Empire | Tost-Gleiwitz | 1936 |
| Moorwies | German Empire | Tost-Gleiwitz | 1939 |
| Łączki | Under Polish administration | Gliwice | 1945 |
| Łączki | Poland | Katowice | 1992 |