List of state leaders in 1668

1667 state leaders - Events of 1668 - 1669 state leaders - State leaders by year

Africa

• Bamun - Ngouloure, Sultan of Bamun (1629–1672)
• Dahomey - Houegbadja, King of Dahomey (1645–1685)
• Ethiopia - Yohannes I, Emperor of Ethiopia (1667–1682)

Asia

• China (Qing Dynasty) - Kangxi, Emperor of China (1662–1722)
• Japan -
  • Monarch - Reigen, Emperor of Japan (1663–1687)
  • Shogun (Tokugawa) - Tokugawa Ietsuna, Shogun of Japan (1651–1680)
  • Ryūkyū Kingdom -
    • Monarch - Shō Shitsu, King of Ryūkyū (1648–1668)
    • Regent - Shō Shōken, Sessei (1666–1673)
• Korea (Joseon Dynasty) - Hyeonjong, King of Joseon (1659–1674)
• Mughal Empire - Aurangzeb, Mughal Emperor (1658–1707)
• Taiwan (Dongning) - Zheng Jing, Ruler of Dongning (1662–1681)

Europe

• Denmark-Norway - Frederick III, King of Denmark and King of Norway (1648–1670)
• England - Charles II, King of England (1660–1685)
• France - Louis XIV, King of France (1643–1715)
• Ottoman ( Turkish ) Empire
  • Sultan - Mehmet IV, the Hunter, Ottoman Sultan (1648–1687)
  • Grand vizier - Köprülü Fazıl Ahmet Pasha (1661–1676)
• Polish-Lithuanian Commonwealth - Jan II Kazimierz Vasa, King of Poland (1648–1668)
• Savoy - Charles Emmanuel II, Duke of Savoy (1638–1675)
• Tuscany - Ferdinando II de' Medici, Grand Duke of Tuscany (1621–1670)
• United Provinces
  • Estates of Friesland, Groningen, Guelders, Holland, Overijssel, Utrecht, Zeeland (1581–1795)
  • Grand Pensionary of Holland - Johan de Witt (1653–1672)