Zaječov was formerly part of the German Empire. In the German Empire, the place was called Zaječov.
The place is now called Zaječov and belongs to Czech Republic.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Zaječow | Austro-Hungary | Rokycan | before the Treaty of Saint-Germain |
| Zaječov | Austro-Hungary | Rokycan | before the Treaty of Saint-Germain |
| Zaječov | Czechoslovakia | Rokycany | after the Treaty of Saint-Germain |
| Hasenhof | German Empire | Rokitzan | 1939 |
| Zaječov | German Empire | Rokitzan | 1939 |
| Zaječov | Czechoslovakia | Hořovice | 1945 |
| Zaječov | Czechoslovakia | Beroun | 1992 |
| Zaječov | Czech Republic | Beroun | 1993 |