Plhov was formerly part of the German Empire. In the German Empire, the place was called Pilhov.
The place is now called Pilhov and belongs to Czechoslovakia.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Plhow | Austro-Hungary | Jitschin | before the Treaty of Saint-Germain |
| Plhov | Austro-Hungary | Jitschin | before the Treaty of Saint-Germain |
| Plhov | Czechoslovakia | Jičín | after the Treaty of Saint-Germain |
| Pilhow | German Empire | Jitschin | 1939 |
| Pilhov | German Empire | Jitschin | 1939 |
| Pilhov | Czechoslovakia | Jičín | 1945 |
| Pilhov | Czechoslovakia | Východní Čechy | 1992 |