Kocin was formerly part of the German Empire. In the German Empire, the place was called Klein Kothau.
The place is now called Kocin and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Klein Kothau | German Empire | Sprottau | 1939 |
| Kocin | Under Polish administration | Żagań | 1945 |
| Kocin | Poland | Zielona Góra | 1992 |