Janowitz was formerly part of the German Empire. In the German Empire, the place was called Janovice nad Úhlavou.
The place is now called Janovice nad Úhlavou and belongs to Czech Republic.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Janowitz | Austro-Hungary | Klattau | before the Treaty of Saint-Germain |
| Janovice | Austro-Hungary | Klattau | before the Treaty of Saint-Germain |
| Janovice nad Úhlavou | Czechoslovakia | Klatovy | after the Treaty of Saint-Germain |
| Janowitz an der Angel | German Empire | Klattau | 1939 |
| Janovice nad Úhlavou | German Empire | Klattau | 1939 |
| Janovice nad Úhlavou | Czechoslovakia | Klatovy | 1945 |
| Janovice nad Úhlavou | Czechoslovakia | Klatovy | 1992 |
| Janovice nad Úhlavou | Czech Republic | Klatovy | 1993 |