Johannau was formerly part of the German Empire. In the German Empire, the place was called Johanová.
The place is now called Janová and belongs to Czechoslovakia.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Johannowa | Austro-Hungary | Wsetin | before the Treaty of Saint-Germain |
| Johanová | Austro-Hungary | Wsetin | before the Treaty of Saint-Germain |
| Johanová | Czechoslovakia | Vsetín | after the Treaty of Saint-Germain |
| Johannau | German Empire | Wsetin | 1939 |
| Johanová | German Empire | Wsetin | 1939 |
| Johanová | Czechoslovakia | Vsetín | 1945 |
| Janová | Czechoslovakia | Severní Morava | 1992 |