John George III, Elector of Saxony
| Johann George III | |
|---|---|
| Elector of Saxony | |
| Reign | 22 August 1680 – 12 September 1691 |
| Predecessor | John George II |
| Successor | John George IV |
| Born | 20 June 1647 Dresden, Electorate of Saxony, Holy Roman Empire |
| Died | 12 September 1691 (aged 44) Tübingen, Duchy of Württemberg, Holy Roman Empire |
| Burial | |
| Spouse | |
| Issue | John George IV, Elector of Saxony Augustus II, King of Poland and Grand Duke of Lithuania |
| House | Wettin |
| Father | Johann Georg II, Elector of Saxony |
| Mother | Magdalene Sybille of Brandenburg-Bayreuth |
| Religion | Lutheran |
Johann George III (20 June 1647 – 12 September 1691) was Elector of Saxony from 1680 to 1691. He belonged to the Albertine branch of the House of Wettin.