Mikołajowa was formerly part of the German Empire. In the German Empire, the place was called Niklasdorf.
The place is now called Mikołajowa and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Niklasdorf | German Empire | Grottkau | 1939 |
| Mikołajowa | Under Polish administration | Grodków | 1945 |
| Mikołajowa | Poland | Opole | 1992 |