Johann Georg I.
Johann Georg I is the name of the following princes:
- Johann Georg I (Anhalt-Dessau) (1567–1618), Prince of Anhalt-Dessau
- Johann Georg I (Saxony) (1585–1656), Elector of Saxony
- Johann Georg I (Saxony-Eisenach) (1634–1686), Duke of Saxony-Eisenach
