Saksi-Jena hertsog (saksa Herzog von Sachsen-Jena) oli Saksi-Jena hertsogiriigi valitsejate tiitel 1672–1690.
![Thumb](http://upload.wikimedia.org/wikipedia/commons/thumb/0/0e/Bernhard_II%2C_Duke_of_Saxe-Jena.jpg/320px-Bernhard_II%2C_Duke_of_Saxe-Jena.jpg)
Kõik Saksi-Jena hertsogid pärinesid Wettinide valitsejasoo Ernestiinide harust.
Saksi-Jena hertsogid
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