Karl Friedrich

Karl Friedrich may refer to:Karl Friedrich, Grand Duke of Baden (1728–1811) Karl Friedrich, Duke of Holstein-Gottorp (1700–1739) Karl Friedrich, Duke of Saxe-Meiningen (1712–1743) Karl Friedrich, Prince of Hohenzollern Karl Friedrich (tenor) (1905–1981) Karl Friedrich, Prince of Hohenzollern-Sigmaringen (1724–1785)