List of state leaders in 1590

This is a list of heads of state, heads of governments, and other rulers in the year 1590.

Africa

• Kingdom of Buganda – Suuna I of Buganda, Kabaka of Buganda (1584–1614)
• Ethiopian Empire – Sarsa Dengel (1563–1597)
• Kingdom of Kongo – Álvaro II, Manikongo (1587–1614)
• Sennar Sultanate – Tayyib (1587/8-1591)
• Songhai Empire – Askia Ishaq II, Askia of the Songhai Empire (1588–1591)

Asia

• Ayutthaya Kingdom (Siam) –
  1. Maha Thammaracha (1569–1590)
  2. Naresuan (1590–1605)
• Khanate of Khiva – Abdullah Khan II (1577–1598)
• China (Ming dynasty) - Wanli Emperor (1573–1620)
• Đại Việt – Lê Thế Tông (1573–1599)
  • Đàng Ngoài – Trịnh Tùng, Trịnh lord (1570–1623)
  • Đàng Trong – Nguyễn Hoàng, Nguyễn lord (1558–1613)
• Japan -
  • Monarch – Emperor Go-Yōzei (1586–1611)
  • Regent (Kampaku) - Toyotomi Hideyoshi, Sesshō and Kampaku (1585–1598)
    • Hirosaki Domain - Tsugaru Tamenobu, Daimyō (1590–1607)
• Sultanate of Khandesh – Raja Ali Khan (1576–1597)
• Khanate of Khiva – Haji Muhammad I (1558–1602)
• Joseon (Korea) – Seonjo (1567–1608)
• Mughal Empire – Akbar (1556–1605)
• Ryukyu Kingdom – Shō Nei (1587–1620)

Europe

• Kingdom of Denmark and Norway – Christian IV (1588–1648)
  • Duchy of Schleswig –
    1. Christian IV (1588–1648) and Philip (1587–1590) in condominial rule
    2. Christian IV (1588–1648) and John Adolphus (1590–1616) in condominial rule
• Kingdom of England — Elizabeth I (1558–1603)
• Kingdom of France – Henry IV (1589–1610)
• Holy Roman Empire – Rudolf II (1576–1612)
  • Prince-Archbishopric of Bremen – John Adolphus (1589–1596)
  • Duchy of Holstein –
    1. Christian IV (1588–1648) and Philip (1587–1590) in condominial rule
    2. Christian IV (1588–1648) and John Adolphus (1590–1616) in condominial rule
  • Prince-Bishopric of Lübeck – John Adolphus (1586–1607)
  • Duchy of Mantua – Vincenzo I Gonzaga (1587–1612)
  • Duchy of Modena – Alfonso II (1559–1597)
  • Duchy of Parma – Alessandro Farnese (1586–1592)
  • Duchy of Savoy – Charles Emmanuel I (1580–1630)
  • Grand Duchy of Tuscany – Ferdinando I de' Medici (1587–1609)
• Royal Hungary – Rudolf II, Holy Roman Emperor (as Rudolf I) (1576–1608)
• Kingdom of Ireland - Elizabeth I, Queen of Ireland (1558–1603)
• Kingdom of Naples – Philip II (1581–1598)
• Kingdom of Navarre – Henry III (1572–1610)
• Ottoman (Turkish) Empire – Murad III (1574–1595)
• Papal States – Pope Sixtus V (1585–1590)
• Polish–Lithuanian Commonwealth – Sigismund III Vasa (1587–1632)
• Kingdom of Portugal and the Algarves – Philip II of Spain, as Philip I (1580–1598)
• Duchy of Prussia – Albert Frederick (1568–1618)
• Tsardom of Russia – Feodor I, Tsar of Russia (1584–1598)
• Kingdom of Scotland – James VI (1567–1625)
• Kingdom of Spain – Philip II (1556–1598)
• Kingdom of Sweden – John III (1568–1592)
• Principality of Transylvania – Sigismund Báthory (1581–1598)
• United Provinces
  • Estates of Friesland, Groningen, Guelders, Holland, Overijssel, Utrecht, Zeeland (1581–1795)
  • Stadtholder - Maurice of Nassau, Prince of Orange, Stadtholder of Holland, Overijssel, Utrecht and Zeeland (1585–1625)
  • Grand Pensionary of Holland - Johan van Oldenbarnevelt (1586–1619)
• Republic of Venice – Pasquale Cicogna, Doge of Venice (1585–1595)

Middle East and North Africa

• Morocco (Saadi dynasty) - Ahmad I al-Mansur Saadi (1578–1603)
• Safavid Empire – Abbas I, Shah of Iran (1587–1629)