Janovice was formerly part of the German Empire. In the German Empire, the place was called Johnsdorf.
The place is now called Janovice and belongs to Czech Republic.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Johnsdorf | Austro-Hungary | Leitmeritz | before the Treaty of Saint-Germain |
| Janovice | Czechoslovakia | Litoměřice | after the Treaty of Saint-Germain |
| Johnsdorf | Czechoslovakia | Litoměřice | after the Treaty of Saint-Germain |
| Johnsdorf | German Empire | Leitmeritz | 1938 |
| Janovice | Czechoslovakia | Litoměřice | 1945 |
| Janovice | Czechoslovakia | Česká Lípa | 1992 |
| Janovice | Czech Republic | Česká Lípa | 1993 |