Loužnitz was formerly part of the German Empire. In the German Empire, the place was called Loužnice.
The place is now called Loužnice and belongs to Czechoslovakia.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Loužnitz | Austro-Hungary | Semil | before the Treaty of Saint-Germain |
| Loužnice | Austro-Hungary | Semil | before the Treaty of Saint-Germain |
| Loužnice | Czechoslovakia | Semily | after the Treaty of Saint-Germain |
| Louschnitz | German Empire | Semil | 1939 |
| Loužnice | German Empire | Semil | 1939 |
| Loužnice | Czechoslovakia | Semily | 1945 |
| Loužnice | Czechoslovakia | Praha, Hlavní město | 1992 |