Kozinec was formerly part of the German Empire. In the German Empire, the place was called Kozinec.
The place is now called Kozinec and belongs to Czech Republic.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Kozinetz | Austro-Hungary | Smichow | before the Treaty of Saint-Germain |
| Kozinec | Austro-Hungary | Smichow | before the Treaty of Saint-Germain |
| Kozinec | Czechoslovakia | Smíchov | after the Treaty of Saint-Germain |
| Kosinetz | German Empire | Prag | 1939 |
| Kozinec | German Empire | Prag | 1939 |
| Kozinec | Czechoslovakia | Kralupy nad Vltavou | 1945 |
| Kozinec | Czechoslovakia | Praha-západ | 1992 |
| Kozinec | Czech Republic | Praha-západ | 1993 |