Prince Johann Georg Pius Karl Leopold Maria Januarius Anacletus of Saxony, Duke of Saxony (Full German name: Prinz Johann Georg Pius Karl Leopold Maria Januarius Anacletus von Sachsen, Herzog zu Sachsen) (born 10 July 1869 in Dresden, Saxony; died 24 November 1938 at Schloss Altshausen in Altshausen, Baden-Württemberg, Germany) was the sixth child and second-eldest son of George of Saxony and his wife Maria Anna of Portugal and a younger brother of the Kingdom of Saxony's last king, Frederick Augustus III of Saxony. Johann Georg was a well-known arts expert and an avid art collector.

Johann Georg was the sixth of eight children and the second son of George of Saxony, the king of Saxony, and his wife Infanta Maria Anna of Portugal. The prince was raised in Dresden and received a strict Roman Catholic upbringing.

Johann Georg's early education was conducted by private teachers until 1881 when he began his military training. From 1889 through 1890, Johann Georg and his younger brother Maximilian studied law together in Freiburg im Breisgau. After switching to the University of Leipzig, Johann Georg mainly attended lectures on history and art history. In 1909, the prince received an honorary doctorate from the University of Leipzig.

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