Hlaska was formerly part of the German Empire. In the German Empire, the place was called Hlaska.
The place is now called Hláska and belongs to Czech Republic.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Hlaska | Austro-Hungary | Senftenberg | before the Treaty of Saint-Germain |
| Hláska | Austro-Hungary | Senftenberg | before the Treaty of Saint-Germain |
| Hláska | Czechoslovakia | Žamberk | after the Treaty of Saint-Germain |
| Hlaska | German Empire | Grulich | 1938 |
| Hláska | Czechoslovakia | Rychnov nad Kněžnou | 1945 |
| Hláska | Czechoslovakia | Rychnov nad Kněžnou | 1992 |
| Hláska | Czech Republic | Rychnov nad Kněžnou | 1993 |