Friedrich August III Johann Ludwig Karl Gustav Gregor Philipp, King of Saxony (25 May 1865 -18 February 1932) was the son of King Georg I of Saxony (1832-1904) and his wife Infanta Maria Ana of Portugal (1843-1884).

He was born in Dresden. He married, on 21 November 1891 at Vienna, Luise of Tuscany. They where divorced in 1903. He became a Generalfeldmarschall. He abdicated 13 November 1918. He died in Sibyllenort and was buried in Dresden.