Podjenin was formerly part of the German Empire. In the German Empire, the place was called Unter Gennin.
The place is now called Podjenin and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Unter Gennin | German Empire | Landsberg (Warthe) | 1939 |
| Podjenin | Under Polish administration | Gorzów Wielkopolski | 1945 |
| Podjenin | Poland | Gorzów | 1992 |