Charles Theodore, Prince-Elector, Count Palatine and Duke of Bavaria (German: Karl Theodor; December 11, 1724 – February 16, 1799) reigned as Prince-Elector and Count palatine from 1742, as Duke of Jülich and Berg from 1742 and also as Prince-Elector and Duke of Bavaria from 1777, until his death. He was a member of the House of Palatinate-Sulzbach, a branch of the House of Wittelsbach.