Jeneč was formerly part of the German Empire. In the German Empire, the place was called Jeneč.
The place is now called Jeneč and belongs to Czech Republic.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Gross-Jenč | Austro-Hungary | Kladno | before the Treaty of Saint-Germain |
| Jenč | Austro-Hungary | Kladno | before the Treaty of Saint-Germain |
| Velký Jeneč | Austro-Hungary | Kladno | before the Treaty of Saint-Germain |
| Jeneč | Czechoslovakia | Kladno | after the Treaty of Saint-Germain |
| Groß-Jentsch | German Empire | Kladno | 1939 |
| Jeneč | German Empire | Kladno | 1939 |
| Jeneč | Czechoslovakia | Praha-západ | 1945 |
| Jeneč | Czechoslovakia | Praha-západ | 1992 |
| Jeneč | Czech Republic | Praha-západ | 1993 |