Zlosyň was formerly part of the German Empire. In the German Empire, the place was called Zlosyň.
The place is now called Zlosyň and belongs to Czech Republic.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Zlosejn | Austro-Hungary | Schlan | before the Treaty of Saint-Germain |
| Zlosyň | Czechoslovakia | Kralupy nad Vltavou | after the Treaty of Saint-Germain |
| Slosein | German Empire | Kralup an der Moldau | 1939 |
| Zlosyň | German Empire | Kralup an der Moldau | 1939 |
| Zlosyň | Czechoslovakia | Kralupy nad Vltavou | 1945 |
| Zlosyň | Czechoslovakia | Mělník | 1992 |
| Zlosyň | Czech Republic | Mělník | 1993 |