Łuka was formerly part of the German Empire. In the German Empire, the place was called Luckau (Ostpr.).
The place is now called Łuka and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Lucka | German Empire | Ortelsburg | 1938 |
| Luckau (Ostpr.) | German Empire | Ortelsburg | 1939 |
| Łuka | Under Polish administration | Szczytno | 1945 |
| Łuka | Poland | Ostrołęka | 1992 |