Pietna was formerly part of the German Empire. In the German Empire, the place was called Teichgrund.
The place is now called Pietna and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Pietna | German Empire | Neustadt O.S. | 1936 |
| Teichgrund | German Empire | Neustadt O.S. | 1939 |
| Pietna | Under Polish administration | Prudnik | 1945 |
| Pietna | Poland | Opole | 1992 |