Noynitz was formerly part of the German Empire. In the German Empire, the place was called Hnoynitz.
The place is now called Hnojnice and belongs to Czech Republic.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Noynitz | Austro-Hungary | Dux | before the Treaty of Saint-Germain |
| Hnojnice | Austro-Hungary | Dux | before the Treaty of Saint-Germain |
| Hnojnice | Czechoslovakia | Duchcov | after the Treaty of Saint-Germain |
| Hnoynitz | Czechoslovakia | Duchcov | after the Treaty of Saint-Germain |
| Hnoynitz | German Empire | Bilin | 1938 |
| Hnojnice | Czechoslovakia | Bílina | 1945 |
| Hnojnice | Czechoslovakia | Louny | 1992 |
| Hnojnice | Czech Republic | Louny | 1993 |