Zaječice was formerly part of the German Empire. In the German Empire, the place was called Sadschitz.
The place is now called Zaječice and belongs to Czech Republic.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Sadschitz (Görkau-Sadschitz) | Austro-Hungary | Komotau | before the Treaty of Saint-Germain |
| Zaječice (Jirkov-Zaječice) | Austro-Hungary | Komotau | before the Treaty of Saint-Germain |
| Zaječice (Jirkov-Zaječice) | Czechoslovakia | Chomutov | after the Treaty of Saint-Germain |
| Sadschitz (Görkau-Sadschitz) | Czechoslovakia | Chomutov | after the Treaty of Saint-Germain |
| Sadschitz | German Empire | Komotau | 1938 |
| Zaječice | Czechoslovakia | Chomutov | 1945 |
| Zaječice | Czechoslovakia | Chomutov | 1992 |
| Zaječice | Czech Republic | Chomutov | 1993 |