List of state leaders in 1827 edit extracted from Wikipedia, the Free Encyclopedia (using Wikipedia Reflection Script)

1826 state leaders - Events of 1827 - 1828 state leaders - State leaders by year

Africa

• Ashanti Confederacy - Osei Yaw Akoto, Asantehene (1824–1834)
• Basutoland - Paramount chief Moshoeshoe I (1822–1870)
• 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)
• Ndzuwani - Abdallah bin Alawi, Sultan of Ndzuwani (1816–1832)
• Rwanda - Yuhi III, Mwami of Rwanda (1797–1830)
• Sokoto Caliphate
  • Caliph - Muhammed Bello, Sokoto Caliph (1814–1837)
  • Grand Vizier - Gidago dan Laima, Sokoto Grand Vizier (1817–1842)
• Swaziland - Paramount chief Ngwane IV (1815–1836)
• Zulu - Shaka, King of the Zulu (1816–1828)

Americas

• Argentina
  1. Bernardino Rivadavia, President of Argentina (1826–1827)
  2. Vicente López y Planes, interim President of Argentina (1827)
• Brazil - Pedro I, Emperor of Brazil (1822–1831)
• Central America - Manuel José Arce, President of Central America (1825–1829)
  • Costa Rica - Juan Mora Fernández, Head of State of Costa Rica (1825–1833)
• Chile
  • Agustín Eyzaguirre (1826–1827)
  • Ramón Freire (1827–1827)
  • Francisco Antonio Pinto (1827–1829)
• Mexico - Guadalupe Victoria, President (1824–1829)
• United States - John Quincy Adams, President of the United States (1825–1829)

Asia

• Afghanistan - Dost Mahommed Khan, Emir of Afghanistan (1826–1839)
• China (Qing Dynasty) - Daoguang, Emperor of China (1821–1850)
• 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 - Mikheil, Prince of Abkhazia (1822–1864)
• Andorra -
  • Bishop of Urgell -
    1. Isidor Bonifaci López y Pulido, Bishop of Urgell (1824–1827)
    2. Temporarily vacant (1827–1828)
  • Charles X, King of France (1824–1830)
• Denmark
  • Monarch - Frederick VI, King of Denmark (1808–1839)
  • Prime Minister - Otto Joachim, Minister of State of Denmark (1824–1842)
• France -
  • Monarch - Charles X, King of France (1824–1830)
  • Prime Minister - Comte de Villèle, Prime Minister of France (1821–1828)
• German Confederation
  • Austria - Francis I, Emperor of Austria (1792*-1835) *Note: Leader of Austria held the title of Archduke prior to 1804
    • Chancellor - Prince Klemens Wenzel von Metternich, Chancellor of Austria (1821–1848)
  • Bohemia - Francis, King of Bohemia (1792–1835)
  • Prussia -
    • Monarch - Friedrich Wilhelm III, King of Prussia (1797–1840)
    • Chief Minister - Count Karl Friedrich Heinrich von Wylich, Chief Minister of Prussia (1823–1841)
  • Bavaria - Ludwig I, King of Bavaria (1825–1848)
    • Prime Minister - Baron Zentner, President of the Council of Ministers (1825–1832)
  • Saxony -
    1. Frederick Augustus I, King of Saxony 1763*-1827) *Note: Leader of Saxony held the title of Elector prior to 1806
    2. Anothony Clement, King of Saxony (1827–1836)
  • Hanover - 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)
• Greece -

1. Andreas Zaimis, President of the Governing Commission (1826–1827)
2. Ioannis Kapodistrias, Governor of Greece (1827–1831)

• 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)
• Ottoman (Turkish) Empire
  • Monarch - Mahmud II, Sultan of the Ottoman Empire (1808–1839)
  • Grand Vizier - Benderli Selim Sirri Pasha, Ottoman Grand Vizier (1824–1828)
• Portugal - Maria II, Queen of Portugal (1826–1828, 1834–1853)
• Russia - Nicholas I, Tsar of Russia (1825–1855)
• Spain - Ferdinand VII, King of Spain (1808, 1814–1833)
• Sweden - United Kingdoms of Sweden and Norway - Charles XIV John, King of Sweden (1818–1844)
• Tuscany - Leopold II, Grand Duke of Tuscany (1824–1859)
• Two Sicilies - Francis I, King of the Two Sicilies (1825–1830)
• United Kingdom
  • Monarch - George IV, King of the United Kingdom (1820–1830)
  • Prime Minister -
    1. Robert Banks Jenkinson, 2nd Earl of Liverpool, Prime Minister of the United Kingdom (1812–1827)
    2. George Canning, Prime Minister of the United Kingdom (1827)
    3. Frederick John Robinson, 1st Viscount Goderich, Prime Minister of the United Kingdom (1827–1828)

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)
• Egypt (Under Ottoman suzerainty) - 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)
• Morocco - Abderrahmane, Sultan of Morocco (1822–1859)
• Oman - Sa'id II ibn Sultan, Sultan of Oman (1804–1856)
• Persia - Fat′h Ali Shah Qajar, Shah of Persia (1797–1834)

Oceania

• Tonga - Aleamotu'a, Tu'i Kanokupolu (1827–1845)