1790 state leaders - Events of 1791 - 1792 state leaders - State leaders by year

Africa

• Ashanti Confederacy - Osei Kwame Panyin, Asantehene (1777-1803)
• Bunyoro - Kyebambe III, Omukama of Bunyoro (1786-1835)
• Dahomey - Agonglo, King of Dahomey (1789-1797)
• Ethiopia - Hezqeyas, Emperor of Ethiopia (1789-1794)
• Gobir - Bawa Jan Gwarzo, Ruler of Gobir (1777-1795)
• Zulu - Senzangakona, King of the Zulu (1781-1816)

Americas

• United States - George Washington, President of the United States (1789-1797)
• Vermont - Thomas Chittenden, Governor of Vermont (October 20, 1790, -October 13, 1797) (Vermont independent until March 4, 1791)

Asia

• Afghanistan - Timur Shah, King of Afghanistan (1772-1793)
• China (Qing Dynasty) - Qianlong, Emperor of China (1735-1796)
• Japan
  • Monarch - Kokaku, Emperor of Japan (1780-1817)
  • Shogun (Tokugawa) - Tokugawa Ienari, Shogun of Japan (1786-1837)
  • Ryūkyū Kingdom - Shō Boku, King of Ryūkyū (1752-1795)
• Korea (Joseon Dynasty) - Jeongjo, King of Joseon (1776-1800)

Australia and Oceania

• Colony of New South Wales
  • Monarch - George III, King of Great Britain, (1760-1801)
  • Governor - Captain Arthur Phillip, Governor of New South Wales (1788-1792)

Europe

• Andorra - Coprinces:
  • Josep de Boltas, Bishop of Urgell (1785-1795)
  • Louis XVI, King of France (1774-1792)
• Denmark–Norway
  • Monarch - Christian VII, King of Denmark (1766-1808)
  • Prime Minister - Andreas Peter Bernstorff, Minister of State of Denmark (1784-1797)
• France - Louis XVI, King of the French (1774-1792)
• Great Britain -
  • Monarch - George III, King of Great Britain (1760-1820)
  • Prime Minister - William Pitt the Younger, Prime Minister of Great Britain (1783-1801, 1804-1806)
• Holy Roman Empire - Leopold II, Holy Roman Emperor (1790-1792)
• Ireland - George III, King of Ireland (1760-1820)
• Polish-Lithuanian Commonwealth - Stanisław August Poniatowski, King of Poland (1764-1795)
• Portugal - Maria I Francisca, Queen of Portugal (1777-1816)
• Prussia - Frederick William II, King of Prussia (1786-1797)
• Russia - Catherine II, Tsaritsa of Russia (1762-1796)
• Spain - Charles IV, King of Spain (1788-1808)
• Sweden - Absolutism
  • Monarch - Gustav III, King of Sweden (1771-1792)
• United Provinces -
  • Estates of Friesland, Groningen (province), Guelders, Holland, Overijssel, Utrecht, Zeeland (1581-1795)
  • Stadtholder - William V, Prince of Orange, Stadholder of Friesland, Groningen (province), Guelders, Holland, Overijssel, Utrecht, Zeeland (1751-1795)
    • Holland - Grand Pensionary Laurens Pieter van de Spiegel of Holland (1787-1795)

Middle East and North Africa

• Abu Dhabi - Dhiyab bin Isa, Shaikh of Abu Dhabi (1761-1793)
• Morocco - Yazid, Sultan of Morocco (1790-1792)
• Ottoman Empire
  • Monarch - Selim III, Sultan of the Ottoman Empire (1789-1807)
  • Grand Vizier -
    1. Rusçuklu Cezayirli Hasan Serif Pasha, Ottoman Grand Vizier (1790-1791)
    2. Koca Yusuf Pasha, Ottoman Grand Vizier (1791-1792)