Osobov was formerly part of the German Empire. In the German Empire, the place was called Osobovy.
The place is now called Osobovy and belongs to Czech Republic.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Wosobow | Austro-Hungary | Přestitz | before the Treaty of Saint-Germain |
| Osobov | Austro-Hungary | Přestitz | before the Treaty of Saint-Germain |
| Osobovy | Czechoslovakia | Přeštice | after the Treaty of Saint-Germain |
| Wosobau | German Empire | Pschestitz | 1939 |
| Osobovy | German Empire | Pschestitz | 1939 |
| Osobovy | Czechoslovakia | Přeštice | 1945 |
| Osobovy | Czechoslovakia | Klatovy | 1992 |
| Osobovy | Czech Republic | Klatovy | 1993 |