Třtěnice was formerly part of the German Empire. In the German Empire, the place was called Třetěnice.
The place is now called Třetěnice and belongs to Czechoslovakia.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Třtěnitz | Austro-Hungary | Jitschin | before the Treaty of Saint-Germain |
| Třtěnice | Austro-Hungary | Jitschin | before the Treaty of Saint-Germain |
| Třtěnice | Czechoslovakia | Jičín | after the Treaty of Saint-Germain |
| Tschetienitz | German Empire | Jitschin | 1939 |
| Třetěnice | German Empire | Jitschin | 1939 |
| Třetěnice | Czechoslovakia | Jičín | 1945 |
| Třetěnice | Czechoslovakia | Východní Čechy | 1992 |