Kopeč was formerly part of the German Empire. In the German Empire, the place was called Kopeč.
The place is now called Kopeč and belongs to Czech Republic.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Kopeč | Austro-Hungary | Melnik | before the Treaty of Saint-Germain |
| Kopeč | Czechoslovakia | Mělník | after the Treaty of Saint-Germain |
| Kopetsch | German Empire | Melnik | 1939 |
| Kopeč | German Empire | Melnik | 1939 |
| Kopeč | Czechoslovakia | Kralupy nad Vltavou | 1945 |
| Kopeč | Czechoslovakia | Mělník | 1992 |
| Kopeč | Czech Republic | Mělník | 1993 |