Kettwa was formerly part of the German Empire. In the German Empire, the place was called Kettwa.
The place is now called Kotvina and belongs to Czech Republic.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Kettwa | Austro-Hungary | Kaaden | before the Treaty of Saint-Germain |
| Kottvina | Austro-Hungary | Kaaden | before the Treaty of Saint-Germain |
| Kotvina | Czechoslovakia | Kadaň | after the Treaty of Saint-Germain |
| Ketwa | Czechoslovakia | Kadaň | after the Treaty of Saint-Germain |
| Ketwa | German Empire | Kaaden | 1938 |
| Kettwa | German Empire | Kaaden | 1938 |
| Kotvina | Czechoslovakia | Kadaň | 1945 |
| Kotvina | Czechoslovakia | Chomutov | 1992 |
| Kotvina | Czech Republic | Chomutov | 1993 |