| Hainichen | |
| Coordinates: | 51°N 48°W |
| Image Plan: | Hainichen in SHK.svg |
| State: | Thüringen |
| District: | Saale-Holzland-Kreis |
| Verwaltungsgemeinschaft: | Dornburg-Camburg |
| Elevation: | 327 |
| Area: | 5.31 |
| Postal Code: | 07778 |
| Area Code: | 036427 |
| Licence: | SHK, EIS, SRO |
| Gemeindeschlüssel: | 16 0 74 036 |
| Website: | http://www.mein-hainichen.de |
| Mayor: | Dennis Graen[1] |
| Leader Term: | 2022 - 28 |
Hainichen is a municipality in the district Saale-Holzland, in Thuringia, Germany.