Karl Theodor

Karl Theodor may refer to:


 * Charles Theodore, Elector of Bavaria (1724–1799), Prince-Elector of Palatine and of Bavaria
 * Karl Theodor Anton Maria von Dalberg (1744–1817), Freiherr of Dalberg and Archbishop-Elector of Mainz
 * Karl Theodor, Duke in Bavaria (1839-1909)