Horní Třešňovec was formerly part of the German Empire. In the German Empire, the place was called Ober Johnsdorf.
The place is now called Horní Třešňovec and belongs to Czech Republic.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Ober-Johnsdorf | Austro-Hungary | Landskron | before the Treaty of Saint-Germain |
| Horní Třešňovec | Austro-Hungary | Landskron | before the Treaty of Saint-Germain |
| Horní Třešňovec | Czechoslovakia | Lanškroun | after the Treaty of Saint-Germain |
| Ober-Johnsdorf | Czechoslovakia | Lanškroun | after the Treaty of Saint-Germain |
| Ober Johnsdorf | German Empire | Landskron | 1938 |
| Horní Třešňovec | Czechoslovakia | Lanškroun | 1945 |
| Horní Třešňovec | Czechoslovakia | Ústí nad Orlicí | 1992 |
| Horní Třešňovec | Czech Republic | Ústí nad Orlicí | 1993 |