List of state leaders in 1820

1819 state leaders - Events of 1820 - 1821 state leaders - State leaders by year----

See also:
*List of religious leaders in 1820
*List of colonial governors in 1820

Africa

*Ashanti Confederacy - Osei Bonsu, Asantehene (1804-1824)
* Buganda - Kamaya, King of Buganda (1814-1836)
* Bunyoro - Nyamutukura Kyebambe III, Omukama of Bunyoro (1786-1835)
* Burundi - Ntare IV Rugamba, King of Burundi (1796-1852)
* Dahomey - Gézo, King of Dahomey (1818-1856)
* Ethiopia - Iyoas II, Emperor of Ethiopia (1818-1821)
**Shewa - Sahle Selassie, Negus (1813-1847)
*Sokoto Caliphate
**Caliph - Muhammed Bello, Sokoto Caliph (1814-1837)
**Grand Vizier - Gidago dan Laima, Sokoto Grand Vizier (1817-1842)
* Ndzuwani - Abdallah bin Alawi, Sultan of Ndzuwani (1816-1832)
* Rwanda - Yuhi III, Mwami of Rwanda (1797-1830)
* Swaziland - Paramount chief Ngwane IV (1815-1836)
*Zulu - Shaka, King of the Zulu (1816-1828)

Americas

* Argentina -
*#José Rondeau, Supreme Director (1819-1820)
*#Juan Pedro Aguirre, Supreme Director (1820)
* Chile - Bernardo O'Higgins, Supreme Director (1817-1823)
* Kingdom of Brazil (part of the United Kingdom of Portugal, Brazil, and the Algarve) - John VI, King (1815-1821)
* New Spain - Juan Ruiz de Apodaca, Viceroy (1816-1821)
* Paraguay - José Gaspar Rodríguez de Francia, Consul of Paraguay (1814-1840)
* United States - James Monroe, President of the United States (1817-1825)

Asia

* Afghanistan -
** Kabul/Peshawar - Ayub Shah, King of Afghanistan (1819-1823)
** Kandahar - Shirdil Khan, Mohammedzay Regent (1818-1826)
** Herat - Mahmud Shah, Padshah of Herat (1819-1826)
* China (Qing Dynasty) - Jiaqing, Emperor of China (1796-1820)-The Daoguang Emperor, Emperor of China 1820-1850
* Japan
**Monarch - Ninko, Emperor of Japan (1817-1846)
**Shogun (Tokugawa) - Tokugawa Ienari, Shogun of Japan (1786-1837)
**Ryūkyū Kingdom - Shō Kō, King of Ryūkyū (1804-1828)
*Korea (Joseon Dynasty) - Sunjo, King of Joseon (1800-1834)

Europe

* Abkhazia - Safar Begi, Prince of Abkhazia (1810-1821)
* Andorra -
** Bernat Francés y Caballero, Bishop of Urgell (1817-1824)
** Louis XVIII, King of France (1815-1824)
* Denmark
** Monarch - Frederick VI, King of Denmark (1808-1839)
** Prime Minister - Heinrich Ernst, Minister of State of Denmark (1818-1824)
* France -
**Monarch - Louis XVIII, King of France (1815-1824)
**Prime Minister -
**# Comte Decazes, Prime Minister of France (1819-1820)
**# Duc de Richelieu, Prime Minister of France (1820-1821)
* German Confederation
** Austria - Francis I, Emperor of Austria (1792*-1835) *Note: Leader of Austria held the title of Archduke prior to 1804
**Bohemia - Francis, King of Bohemia (1792-1835)
** Prussia -
***Monarch - Friedrich Wilhelm III, King of Prussia (1797-1840)
***Chief Minister - Prince Karl August von Hardenberg, Chief Minister of Prussia (1810-1822)
** Bavaria - Maximilian I, King of Bavaria (1799*-1825) *Note: Leader of Bavaria held title of Elector prior to 1805
** Saxony - Frederick Augustus I, King of Saxony 1763*-1827) *Note: Leader of Saxony held the title of Elector prior to 1806
** Hanover -
**#George III, King of Hanover (1814-1820)
**#George IV, King of Hanover (1820-1830)
** Württemberg - William, King of Württemberg (1816-1864)
** Luxembourg - William I, Grand Duke of Luxembourg (1815-1840)
** Liechtenstein - Johann Josef I, Prince of Liechtenstein (1805-1836)
*Hungary - Francis, King of Hungary (1792-1835)
*Moresnet
**Monarchs -
***William I, King of the Netherlands (1815-1840)
***Friedrich Wilhelm III, King of Prussia (1797-1840)
**Mayor - Arnold Timothée de Lasaulx, Mayor of Moresnet (1817-1859)
* United Kingdom of the Netherlands - William I, King of the Netherlands (1815-1840)
*Portugal - John VI, King of Portugal (1816-1826)
*Russia - Alexander I, Tsar of Russia (1801-1825)
*Spain - Ferdinand VII, King of Spain (1808, 1814-1833)
* Sweden - United Kingdoms of Sweden and Norway - Charles XIV John, King of Sweden (1818-1844)
*Two Sicilies - Ferdinand I, King of the Two Sicilies (1816-1825)
* United Kingdom
**Monarch -
**# George III, King of the United Kingdom (1760-1820)
**# George IV, King of the United Kingdom (1820-1830)
**Regent -
**# The Prince of Wales, Regent of the United Kingdom (1811-1820)
**# became King
** Prime Minister - Robert Banks Jenkinson, 2nd Earl of Liverpool, Prime Minister of the United Kingdom (1812-1827)

Middle East and North Africa

* Abu Dhabi -
** Co-Shaikh - Shakhbut bin Dhiyab, Shaikh of Abu Dhabi (1818-1833)
** Co-Shaikh - Tahnun bin Shakhbut, Shaikh of Abu Dhabi (1818-1833)
* Ajman - Rashid bin Humayd, Shaikh of Ajman (1816-1838)
* Bahrain - Shiekh Sulman ibn Ahmad Al Khalifah, Ruler of Bahrain (1796-1825)
* Egypt - Muhammad Ali Pasha, Governor of Egypt (1805-1848)
**Kel Ahaggar - Ag Mama ag Sidi, Ruler of Kel Ahaggar (1790-1830)
* Kuwait - Sheikh Jabir ibn Abdullah Al Sabah, Ruler of Kuwait (1814-1859)
* Lebanon - Bashir ibn al-Qasim ibn Umar, Emir of Lebanon (1801-1821)
* Morocco - Slimane, Sultan of Morocco (1792-1822)
* Oman - Sa'id II ibn Sultan, Sultan of Oman (1804-1856)
* Ottoman Empire
**Monarch - Mahmud II, Sultan of the Ottoman Empire (1808-1839)
**Grand Vizier -
**# Dervis Mehmed Pasha, Ottoman Grand Vizier (1818-1820)
**# Seyyid Ali Pasha, Ottoman Grand Vizier (1820-1821)
* Tunis "(under Ottoman suzerainty)" - Mahmud, Bey of Tunis (1814-1824)