Radkov was formerly part of the German Empire. In the German Empire, the place was called Ratkau.
The place is now called Radkov and belongs to Czech Republic.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Ratkau | Austro-Hungary | Troppau | before the Treaty of Saint-Germain |
| Radkov | Austro-Hungary | Troppau | before the Treaty of Saint-Germain |
| Radkov | Czechoslovakia | Opava | after the Treaty of Saint-Germain |
| Ratkau | Czechoslovakia | Opava | after the Treaty of Saint-Germain |
| Ratkau | German Empire | Troppau | 1938 |
| Radkov | Czechoslovakia | Vítkov | 1945 |
| Radkov | Czechoslovakia | Opava | 1992 |
| Radkov | Czech Republic | Opava | 1993 |