1657 state leaders - Events of 1658 - 1659 state leaders - State leaders by year

Africa

• Dahomey - Houegbadja, King of Dahomey (1645-1685)
• Ethiopia - Fasilides, Emperor of Ethiopia (1632-1667)

Asia

• China
  • Qing Dynasty - Shunzhi, Emperor of China (1644-1661)
  • Southern Ming - Prince of Gui, Emperor of Southern Ming (1646-1662)
• Japan -
  • Monarch - Go-Sai, Emperor of Japan (1655-1663)
  • Shogun (Tokugawa) - Tokugawa Ietsuna, Shogun of Japan (1651-1680)
  • Ryūkyū Kingdom - Shō Shitsu, King of Ryūkyū (1648-1668)
• Korea (Joseon Dynasty) - Hyojong, King of Joseon (1649-1659)

Europe

• Denmark-Norway - Frederick III, King of Denmark and King of Norway (1648-1670)
• England
  1. Oliver Cromwell - Lord Protector (1549-1658)
  2. Richard Cromwell - Lord Protector (1558-1660)
• France - Louis XIV, King of France (1643-1715)
• Polish-Lithuanian Commonwealth - Jan II Kazimierz Vasa, King of Poland (1648-1668)
• Savoy - Charles Emmanuel II, Duke of Savoy (1638-1675)
• Sweden - Charles X Gustav, King of Sweden (1654-1660)
• United Provinces
  • Estates of Friesland, Groningen, Guelders, Holland, Overijssel, Utrecht, Zeeland (1581-1795)
  • Grand Pensionary of Holland - Johan de Witt (1653-1672)