Úsilov was formerly part of the German Empire. In the German Empire, the place was called Úsilov.
The place is now called Úsilov and belongs to Czech Republic.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Ausilau | Austro-Hungary | Taus | before the Treaty of Saint-Germain |
| Úsilov | Austro-Hungary | Taus | before the Treaty of Saint-Germain |
| Ousilov | Austro-Hungary | Taus | before the Treaty of Saint-Germain |
| Úsilov | Czechoslovakia | Domažlice | after the Treaty of Saint-Germain |
| Ausilau | German Empire | Taus | 1939 |
| Úsilov | German Empire | Taus | 1939 |
| Úsilov | Czechoslovakia | Domažlice | 1945 |
| Úsilov | Czechoslovakia | Domažlice | 1992 |
| Úsilov | Czech Republic | Domažlice | 1993 |