Johann of Saxony-Eisenach
Johann von Sachsen-Eisenach is the name of the following people:
- Johann Ernst (Saxony-Eisenach) (1566–1638), Duke of Saxony-Eisenach and of Saxony-Coburg
- Johann Georg I (Saxony-Eisenach) (1634–1686), Duke of Saxony-Eisenach
- Johann Georg II (Saxony-Eisenach) (1665–1698), Duke of Saxony-Eisenach
- Johann Wilhelm (Saxony-Eisenach) (1666–1729), Duke of Saxony-Eisenach