Frederick Augustus II (German: Friedrich August II.; 18 May 1797 in Dresden – 9 August 1854 in Brennbüchel, Karrösten, Tyrol) was King of Saxony and a member of the House of Wettin.
He was the eldest son of Maximilian, Prince of Saxony — younger son of the Elector Frederick Christian of Saxony — by his first wife, Caroline of Bourbon, Princess of Parma.