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