Trněný Újezd was formerly part of the German Empire. In the German Empire, the place was called Trněný Újezd.
The place is now called Trněný Újezd and belongs to Czech Republic.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Aujezd Trněny | Austro-Hungary | Smichow | before the Treaty of Saint-Germain |
| Trněný Újezd | Austro-Hungary | Smichow | before the Treaty of Saint-Germain |
| Trněný Oujezd | Austro-Hungary | Smichow | before the Treaty of Saint-Germain |
| Trněný Újezd | Czechoslovakia | Smíchov | after the Treaty of Saint-Germain |
| Dorn-Aujest | German Empire | Prag | 1939 |
| Trněný Újezd | German Empire | Prag | 1939 |
| Trněný Újezd | Czechoslovakia | Kralupy nad Vltavou | 1945 |
| Trněný Újezd | Czechoslovakia | Kladno | 1992 |
| Trněný Újezd | Czech Republic | Kladno | 1993 |