Bielok was formerly part of the German Empire. In the German Empire, the place was called Běloky.
The place is now called Běloky and belongs to Czech Republic.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Bělok | Austro-Hungary | Smichow | before the Treaty of Saint-Germain |
| Běloky | Austro-Hungary | Smichow | before the Treaty of Saint-Germain |
| Běloky | Czechoslovakia | Smíchov | after the Treaty of Saint-Germain |
| Bielok | German Empire | Prag | 1939 |
| Běloky | German Empire | Prag | 1939 |
| Běloky | Czechoslovakia | Kladno | 1945 |
| Běloky | Czechoslovakia | Kladno | 1992 |
| Běloky | Czech Republic | Kladno | 1993 |