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