Jančí was formerly part of the German Empire. In the German Empire, the place was called Jantsch.
The place is now called Jančí and belongs to Czech Republic.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Jantsch | Austro-Hungary | Troppau | before the Treaty of Saint-Germain |
| Jančí | Austro-Hungary | Troppau | before the Treaty of Saint-Germain |
| Jančí | Czechoslovakia | Opava | after the Treaty of Saint-Germain |
| Jantsch | German Empire | Troppau | 1938 |
| Jančí | Czechoslovakia | Vítkov | 1945 |
| Jančí | Czechoslovakia | Opava | 1992 |
| Jančí | Czech Republic | Opava | 1993 |