Charles IV

Charles IV may refer to:


 * Charles IV, Holy Roman Emperor, the "Knight Prince" (1227–1285), also King of Naples.
 * Charles IV of France, "the Fair" (1294–1328)
 * Charles IV of Navarre (1421–1461)
 * Charles IV, Duke of Anjou (1436–1481)
 * Charles IV, Duke of Alençon (1489–1525)
 * Charles, Duke of Vendôme (1489–1537), also known as Charles IV de Bourbon
 * Charles V, Holy Roman Emperor (1500–1558), King of Naples as Charles IV
 * Charles IV, Duke of Lorraine (1604–1675)
 * Charles VI, Holy Roman Emperor (1685–1740), Duke of Brabant and King of Sicily as Charles IV
 * Charles Emmanuel IV of Sardinia (1751–1802), styled "Charles IV of England and Scotland" by Jacobites
 * Charles IV of Spain (1748–1819)
 * Charles IV of Norway (1826–1872)
 * Charles IV of Hungary (1887–1922)

Karolo (regantoj)