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