1839 state leaders - Events of 1840 - 1841 state leaders - State leaders by year

Africa

• Ashanti Confederacy - Kwaku Dua I Panyin, Asantehene (1834-1867)
• Burundi - Ntare IV Rugamba, King of Burundi (1796-1852)
• Dahomey - Gézo, King of Dahomey (1818-1856)
• Rwanda - Mutara II Rwogera, King of Rwanda (1802-1853)
• Zulu -
  1. Dingane kaSenzangakhona, King of the Zulu (1828-1840)
  2. Mpande kaSenzangakhona, King of the Zulu (1840-1872)

Asia

• Afghanistan - Shoja Shah, King of Afghanistan (1839-1842)
• China (Qing Dynasty) - Daoguang, Emperor of China (1821-1850)
• Japan
  • Monarch - Ninko, Emperor of Japan (1817-1846)
  • Shogun (Tokugawa) - Tokugawa Ieyoshi, Shogun of Japan (1737-1853)

Europe

• Abkhazia - Mikheil, Prince of Abkhazia (1822-1864)
• Andorra -
  • Simó Rojas de Guardiola i Hortoneda, Bishop of Urgell (1828-1851)
  • Louis-Philippe I, King of France (1830-1848)
• Austria -
  • Monarch - Ferdinand I, Emperor of Austria (1835-1848)
  • Foreign Minister - Klemens Wenzel von Metternich, Foreign Minister of Austria (1809-1848)
• Belgium - Leopold I, King of the Belgians (1831-1865)
• Denmark
  • Monarch - Christian VIII, King of Denmark (1839-1848)
  • Prime Minister - Otto Joachim, Minister of State of Denmark (1824-1842)
• France -
  • Monarch - Louis Philippe, King of the French (1830-1848)
  • Prime Minister -
    1. Nicolas Jean de Dieu Soult, duc de Dalmatie, Prime Minister of France (1839-1840)
    2. Adolphe Thiers, Prime Minister of France (1840)
    3. Nicolas Jean de Dieu Soult, duc de Dalmatie, Prime Minister of France (1840-1847)
• Netherlands -
  1. William I, King of the Netherlands (1815-1840)
  2. William II, King of the Netherlands (1840-1849)
• Portugal - Maria II, Queen of Portugal (1826-1828, 1834-1853)
• Prussia -
  • Monarch -
    1. Friedrich Wilhelm III, King of Prussia (1797-1840)
    2. Friedrich Wilhelm IV, King of Prussia (1840-1861)
  • Chief Minister - Karl Friedrich Heinrich von Wylich, Cabinet Minister (1823-1841
• Russia - Nicholas I, Tsar of Russia (1825-1855)
• Spain - Isabella II, Queen of Spain (1833-1868)
• Sweden - Kingdom of Sweden-Norway
  • Monarch Charles XIV, King of Sweden (1818-1844)
  • Chief Minister -
    1. Mathias Rosenblad, Prime Minister for Justice of Sweden (1829-1840)
    2. Hans Gabriel Trolle-Wachtmeister, Prime Minister for Justice of Sweden, did not take office (1840)
    3. Arvid Posse, Prime Minister for Justice of Sweden (1840)
    4. Carl Törnebladh, Prime Minister for Justice of Sweden (1840-1843)
  • Foreign Minister - Gustaf Nils Algernon Stierneld, Prime Minister for Foreign Affairs of Sweden-Norway (1838-1842)
• United Kingdom -
  • Monarch - Victoria, Queen of Great Britain and Ireland (1837-1901)
  • Prime Minister - William Lamb, 2nd Viscount Melbourne, Prime Minister of the United Kingdom (1835-1841)

Middle East and North Africa

• Abu Dhabi -
  • Co-Shaikh - Khalifa bin Shakhbut, Shaikh of Abu Dhabi (1833-1845)
  • Co-Shaikh - Sultan bin Shakhbut, Shaikh of Abu Dhabi (1833-1845)
• Ajman - Humayd ibn Rashid, Shaikh of Ajman (1838-1841)
• Bahrain - Muhammad ibn Khalifah Al Khalifah, Shaikh of Bahrain (1834-1842)
• Egypt - Muhammad Ali Pasha, Governor of Egypt (1805-1848)
• Kuwait - Sheikh Jabir ibn Abdullah Al Sabah, Ruler of Kuwait (1814-1859)
• Morocco - Abderrahmane, Sultan of Morocco (1822-1859)
• Oman - Sa'id II ibn Sultan, Sultan of Oman (1804-1856)
• Ottoman Empire
  • Monarch - Abd-ul-Mejid, Sultan of the Ottoman Empire (1839-1861)
  • Grand Vizier - Mehmed Hüsrev Pasha, Ottoman Grand Vizier (1839-1841)

North America

• Mexico - Anastasio Bustamante, President of Mexico (1839-1841)
• Republic of Texas - Mirabeau B. Lamar, President (1838-1841)
• United States - Martin Van Buren, President of the United States (1837-1841)

South America

• Brazil - Maria II of Portugal, Queen of Brazil (1834-1853)
• Chile -
  1. José Joaquín Prieto Vial, President of Chile (1831-1840, 1840-1841)
  2. ...
• Paraguay -
  1. Perpetual Supreme Dictator José Gaspar Rodríguez de Francia (1814-1840)
  2. ...