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