Haunštejn was formerly part of the German Empire. In the German Empire, the place was called Hauenstein.
The place is now called Horní Hrad and belongs to Czech Republic.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Hauenstein | Austro-Hungary | Sankt Joachimsthal | before the Treaty of Saint-Germain |
| Haunštejn | Czechoslovakia | Jáchymov | after the Treaty of Saint-Germain |
| Hauenstein | Czechoslovakia | Jáchymov | after the Treaty of Saint-Germain |
| Hauenstein | German Empire | Sankt Joachimsthal | 1938 |
| Horní Hrad | Czechoslovakia | Jáchymov | 1945 |
| Horní Hrad | Czechoslovakia | Karlovy Vary | 1992 |
| Horní Hrad | Czech Republic | Karlovy Vary | 1993 |