List of state leaders in 1604

1603 state leaders - Events of 1604 - 1605 state leaders - State leaders by year -----

Africa

*Ethiopia -
*#Za Dengel, Emperor of Ethiopia (1603-1604)
*#Yaqob, Emperor of Ethiopia (1597-1603 and 1604-1606)

Asia

*China (Ming Dynasty) - Wanli, Emperor of China (1573-1620)
*Dai Viet - Lê Kính Tông, Emperor of Dai Viet (1600-1619)
**Đàng Ngoài - Trịnh Tùng, Trịnh Lord (1570-1623)
**Đàng Trong - Nguyễn Hoàng, Nguyễn Lord (1558–1613)
* Japan
**Monarch - Go-Yozei, Emperor of Japan (1586-1611)
**Shogun (Tokugawa) - Tokugawa Ieyasu, Shogun of Japan (1603-1605)
*Korea (Joseon Dynasty) - Seonjo, King of Joseon (1567-1608)
*Mughal Empire - Akbar, Mughal Emperor (1556-1605)
*Ryūkyū Kingdom - Shō Nei, King of Ryūkyū (1587-1620)

Europe

*Denmark - Christian IV, King of Denmark (1588-1648)
*England - James I, King of England (1603-1625)
*France - Henry IV, King of France (1589-1610)
*Holy Roman Empire - Rudolf II, Holy Roman Emperor (1576-1612)
*Moldavia - Ieremia Movilă, Voivode of Moldavia (August 1595 - May 1600 and September 1600 - 1606)
*Papal States - Clement VIII, Pope (1592-1605)
*Poland - Sigismund III Vasa, King of Poland (1587-1632)
*Russia - Boris Godunov, Tsar of Russia (1598-1605)
*Scotland - James VI, King of Scotland (1567-1625) - also King of England
*Spain - Philip III, King of Spain (1598-1621)
*Sweden - Charles IX, King of Sweden (1599-1611)
* United Provinces
**Estates of Friesland, Groningen, Guelders, Holland, Overijssel, Utrecht, Zeeland (1581-1795)
** Stadtholder - Maurice of Nassau, Prince of Orange, Stadtholder of Gelre, Holland, Overijssel, Utrecht and Zeeland (1585 - 1625)
**Grand Pensionary of Holland - Johan van Oldebarnevelt (1586-1619)
*Venice - Marino Grimani, Doge of Venice (1595-1606)

Middle East and North Africa

* Ottoman Empire - Ahmed I, Sultan of the Ottoman Empire (1603-1617)
*Safavid Empire - Abbas I Shah of Iran (1587-1629)

North America

*Acadia -
*#Pierre Dugua, Sieur de Monts, Governor of Acadia (1603-1608)