Janov (Litvínov-Janov) was formerly part of the German Empire. In the German Empire, the place was called Johnsdorf.
The place is now called Janov (Litvínov-Janov) and belongs to Czech Republic.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Johnsdorf | Austro-Hungary | Brüx | before the Treaty of Saint-Germain |
| Janov | Austro-Hungary | Brüx | before the Treaty of Saint-Germain |
| Janov | Czechoslovakia | Most | after the Treaty of Saint-Germain |
| Johnsdorf | Czechoslovakia | Most | after the Treaty of Saint-Germain |
| Johnsdorf | German Empire | Brüx | 1938 |
| Janov | Czechoslovakia | Horní Litvínov/Litvínov | 1945 |
| Janov (Litvínov-Janov) | Czechoslovakia | Most | 1992 |
| Janov (Litvínov-Janov) | Czech Republic | Most | 1993 |