Blažov was formerly part of the German Empire. In the German Empire, the place was called Blažov.
The place is now called Blažov and belongs to Czechoslovakia.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Blažow | Austro-Hungary | Littau | before the Treaty of Saint-Germain |
| Blažov | Austro-Hungary | Littau | before the Treaty of Saint-Germain |
| Blažov | Czechoslovakia | Litovel | after the Treaty of Saint-Germain |
| Blaschau | German Empire | Littau | 1939 |
| Blažov | German Empire | Littau | 1939 |
| Blažov | Czechoslovakia | Litovel | 1945 |
| Blažov | Czechoslovakia | Severní Morava | 1992 |