List of state leaders in 1812

This is a list of heads of state, heads of governments, and other rulers in the year 1812.

Africa

• Kingdom of Agwe - Komlagan (1812-1821)
• Ashanti Confederacy – Osei Bonsu, Asantehene (1804–1824)
• Kingdom of Buganda – Semakokiro (1771–1814)
• Bunyoro – Nyamutukura Kyebambe III, Omukama of Bunyoro (1786–1835)
• Kingdom of Burundi – Ntare IV Rugamba (1796–1852)
• Kingdom of Dahomey – Adandozan (1797–1818)
• Ethiopian Empire – Egwale Seyon Hezqeyas (1801–1818)
• Fulani Empire – Usman dan Fodio, Fulani Caliph (1804–1814)
• Funj Sultanate - Badi VII (1805-1821)
• Kingdom of Kaffa - Hoti Gaocho (1798-1821)
• Mayotte – Suhali bin Salim, Sultan of Mayotte (1807–1817)
• Sultanate of Ndzuwani – Alawi bin Husain (1796–1816)
• Islands of Refreshment – Jonathan Lambert (1811–1812)
• Kingdom of Rwanda – Yuhi III (1797–1830)
• Wadai Empire – Abd al-Karim Sabun (1804–1815)
• Zulu – Senzangakona, King of the Zulu (1781–1816)

Americas

• United Provinces of the Rio de la Plata

1. Feliciano Antonio Chiclana, Manuel de Sarratea and Juan José Paso, First Triumvirate (1811-1812)
2. Feliciano Antonio Chiclana, Manuel de Sarratea and Juan Martín de Pueyrredón, First Triumvirate (1812)

• Republic of Haiti – Alexandre Pétion, President (1807–1818)
• Miskito Nation – George Frederic Augustus I, King of the Miskito Nation (1801–1824)
• United States - James Madison, President of the United States (1809–1817)

Asia

• Alirajpur State - Pratap Singh I (1765-1818)
• Durrani Empire – Mahmud Shah (1809–1818)
• China (Qing dynasty) - Jiaqing Emperor (1796–1820)
• Empire of Japan
  • Monarch – Kōkaku (1780–1817)
  • Tokugawa shogunate – Tokugawa Ienari (1786–1837)
  • Ryukyu Kingdom - Shō Kō (1804–1828)
• Joseon (Korea) – Sunjo (1800–1834)
• Sultanate of the Maldives – Mu'in ad-Din I Muhammad (1799–1835)
• Kingdom of Luang Phrabang - Anurutha (1794-1819)
• Nepal – Girvan Yuddha Bikram Shah (1799–1816), Maharajadhiraja of Nepal
• Rajpipla State - Naharsinhji (1810-1821)
• Siam – Rama II (1809–1824)
• Sikh Empire – Ranjit Singh, Maharaja of the Sikh Empire (1801–1839)

Europe

• Principality of Abkhazia – Safar Begi (1810–1821)
• Andorra –
  • Francesc Antoni de la Dueña y Cisneros, Bishop of Urgel (1797–1816)
  • Napoleon I, Emperor of the French (1804–1814)
• Austrian Empire – Francis I (1792*-1835) *Note: Leader of Austria held the title of Archduke prior to 1804
• Kingdom of Bohemia – Francis (1792–1835)
• Confederation of the Rhine
  • Kingdom of Bavaria – Maximilian I (1799*-1825) *Note: Leader of Bavaria held title of Elector prior to 1805
    • Prime Minister – Count Maximilian Joseph von Montgelas (1799–1817)
  • Kingdom of Saxony – Frederick Augustus I (1763*-1827) *Note: Leader of Saxony held the title of Elector prior to 1806
  • Kingdom of Westphalia – Jérôme Bonaparte (1807–1813)
  • Kingdom of Württemberg – Frederick I (1797*-1816) *Note: Leader of Württemberg held the title of Elector prior to 1806, and the title of Duke prior to 1803
• Kingdom of Denmark–Norway
  • Monarch – Frederick VI (1808–1814)
  • Minister of State- Frederik, greve Moltke (1810–1814)
• Grand Duchy of Finland – Alexander I of Russia (1809–1825)
• First French Empire – Napoleon I (1804–1814)
• Kingdom of Hungary – Francis (1792–1835)
• Ottoman (Turkish) Empire
  • Sultan - Mahmud II (1808–1839)
  • Grand Vizier -
    1. Laz Ahmed Pasha (1811–1812)
    2. Hursid Ahmed Pasha (1812–1815)
• Kingdom of Portugal and the Algarves –
  • Monarch – Maria I (1777–1816)
  • Prince-Regent – Prince John (1792–1816)
• Kingdom of Prussia – Frederick William III (1797–1840)
  • Chief Minister - Prince Karl August von Hardenberg (1810–1822)
• Russian Empire – Alexander I (1801–1825)
• Kingdom of Spain – Joseph Bonaparte (1808–1813)
• Kingdom of Sweden –
  • Monarch – Charles XIII (1809–1818)
  • Regent – Charles John, Crown Prince of Sweden (1810–1818)
• United Kingdom of Great Britain and Ireland
  • Monarch – George III (1760–1820)
  • Regent – George, Prince Regent, Regent of the United Kingdom (1811–1820)
  • Prime Minister -
    1. Spencer Perceval (1809–1812)
    2. Robert Banks Jenkinson, 2nd Earl of Liverpool (1812–1827)
• Duchy of Warsaw – Frederick Augustus I, Duke of Warsaw (1807–1813)

Middle East and North Africa

• Abu Dhabi – Shakhbut bin Dhiyab, Shaikh of Abu Dhabi (1793–1816)
• Egypt Eyalet – Muhammad Ali Pasha, Viceroy of Egypt (1805–1848)
• Sultanate of Morocco – Slimane (1792–1822)
• Persia (Qajar dynasty) – Fat′h Ali Shah Qajar (1797–1834)