Mladá Boleslav was formerly part of the German Empire. In the German Empire, the place was called Mladá Boleslav.
The place is now called Mladá Boleslav and belongs to Czechoslovakia.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Jung-Bunzlau | Austro-Hungary | Jungbunzlau | before the Treaty of Saint-Germain |
| Mladá Boleslav | Austro-Hungary | Jungbunzlau | before the Treaty of Saint-Germain |
| Mladá Boleslav | Czechoslovakia | Mladá Boleslav | after the Treaty of Saint-Germain |
| Jungbunzlau | German Empire | Jungbunzlau | 1939 |
| Mladá Boleslav | German Empire | Jungbunzlau | 1939 |
| Mladá Boleslav | Czechoslovakia | Mladá Boleslav | 1945 |
| Mladá Boleslav | Czechoslovakia | Střední Čechy | 1992 |