Johann IV

Johann IV may refer to:


 * Johann IV, Duke of Bavaria (1437–1463)
 * Johann IV von Isenburg (died 1556)
 * Johann IV, Count of Katzenelnbogen (died 1444)
 * Johann IV von Schweidnitz (1375–1451), bishop of Meissen
 * Johann IV Ludwig von Hagen (1492–1547)
 * Johann IV Roth (died 1506), bishop of Wrocław
 * Yohannes IV of Ethiopia (1837–1889)