Krsy was formerly part of the German Empire. In the German Empire, the place was called Girsch.
The place is now called Krsy and belongs to Czech Republic.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Girsch | Austro-Hungary | Plan | before the Treaty of Saint-Germain |
| Krzy | Austro-Hungary | Plan | before the Treaty of Saint-Germain |
| Krsy | Czechoslovakia | Planá | after the Treaty of Saint-Germain |
| Girsch | Czechoslovakia | Planá | after the Treaty of Saint-Germain |
| Girsch | German Empire | Tepl | 1938 |
| Krsy | Czechoslovakia | Stříbro | 1945 |
| Krsy | Czechoslovakia | Plzeň-sever | 1992 |
| Krsy | Czech Republic | Plzeň-sever | 1993 |