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