List of state leaders in 1842

This is a list of heads of state, government leaders, and other rulers in the year 1842.

Africa

• Ashanti Confederacy – Kwaku Dua I Panyin, Asantehene (1834–1867)
• Kingdom of Buganda – Suna II (1836–1856)
• Bunyoro – Nyabongo II, Omukama of Bunyoro (1835–1848)
• Kingdom of Burundi – Ntare IV Rugamba (1796–1852)
• Kingdom of Dahomey – Gézo (1818–1856)
• Kingdom of Rwanda – Mutara II Rwogera (1830–1853)
• Sokoto Caliphate
  • Caliph -
    1. Abu Bakr Atiku (1837–1842)
    2. Ali bin Bello I (1842–1859)
  • Grand Vizier -
    1. Gidago dan Laima (1817–1842)
    2. Abd al-Qadir (1842–1859)
• Zulu – Mpande kaSenzangakhona, King of the Zulu (1840–1872)

Asia

• Emirate of Afghanistan –
  1. Shah Shujah Durrani (1839–1842)
  2. Dost Mohammad Khan (1842–1863)
  • Mohammad Zaman Khan, Mohammadzay regent (in rebellion)
• China (Qing dynasty) - Daoguang Emperor (1821–1850)
• Empire of Japan
  • Monarch – Ninkō (1817–1846)
  • Tokugawa shogunate – Tokugawa Ieyoshi (1837–1853)
  • Ryukyu Kingdom - Shō Iku (1829–1847)
• Joseon (Korea) – Heonjong (1834–1849)
• Kingdom of Sarawak – James Brooke, Raja of Sarawak (1841–1868)

Europe

• Principality of Abkhazia – Mikhail (1822–1864)
• Belgium
  • Monarch – Léopold I, King of the Belgians (1831–1865)
  • Cabinet Chief - Barthélémy de Theux de Meylandt (1841–1845)
• Kingdom of Denmark –
  • Monarch – Christian VIII (1839–1848)
  • Minister of State -
    1. Otto Joachim Moltke (1824–1842)
    2. Poul Christian Stemann (1842–1848)
• Kingdom of France –
  • Monarch – Louis Philippe I (1830–1848)
  • Prime Minister - Jean-de-Dieu Soult (1840–1847)
• German Confederation
  • Austrian Empire – Ferdinand I (1835–1848)
    • Chancellor - Prince Klemens Wenzel von Metternich, Chancellor of Austria (1821–1848)
  • Kingdom of Prussia –
    • Monarch – Friedrich Wilhelm IV (1840–1861)
    • Chief Minister - Ludwig Gustav von Thile (1841–1848)
  • Kingdom of Bavaria
    • Monarch - Ludwig I (1825–1848)
    • Prime Minister – Karl von Abel (1837–1847)
  • Kingdom of Saxony – Frederick Augustus (1836–1854)
  • Kingdom of Hanover – Ernest Augustus (1837–1851)
  • Kingdom of Württemberg – William (1816–1864)
• Kingdom of Greece – Otto (1832–1862)
• Kingdom of Hungary – Ferdinand V (1835–1848)
• Kingdom of the Netherlands – William II (1840–1849)
• Ottoman (Turkish) Empire
  • Sultan - Abdülmecid I (1839–1861)
  • Grand Vizier -
    1. Topal Izzet Mehmed Pasha (1841–1842)
    2. Mehmed Emin Rauf Pasha (1842–1846)
• Kingdom of Portugal and the Algarves
  • Monarch – Maria II (1826–1828, 1834–1853)
  • President of the Council of Ministers -
    1. Joaquim António de Aguiar (1841–1842)
    2. Duke of Palmela (1842)
    3. Provisional Government Junta (1842)
    4. Duke of Terceira (1842–1846)
• Russian Empire – Nicholas I (1825–1855)
• Kingdom of Spain – Isabella II (1833–1868)
• Kingdom of Sweden – United Kingdoms of Sweden and Norway - Charles XIV John (1818–1844)
• Grand Duchy of Tuscany – Leopold II (1824–1859)
• Kingdom of the Two Sicilies – Ferdinand II (1830–1859)
• United Kingdom of Great Britain and Ireland –
  • Monarch – Victoria (1837–1901)
  • Prime Minister - Sir Robert Peel (1834–1835, 1841–1846)

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)
• Egypt Eyalet – Muhammad Ali Pasha, Governor of Egypt (1805–1848)
• Kuwait – Sheikh Jabir ibn Abdullah Al Sabah (1814–1859)
• Sultanate of Morocco – Abd al-Rahman (1822–1859)
• Sultanate of Oman – Sa'id II ibn Sultan (1804–1856)
• Persia (Qajar dynasty) – Mohammad Shah Qajar (1834–1848)

North American and the Caribbean

• Costa Rica –
  1. Braulio Carrillo Colina, Head of State of Costa Rica (1838–1842)
  2. Francisco Morazán, Head of State of Costa Rica (1842)
  3. António Pinto Soares, Head of State of Costa Rica (1842)
  4. José María Alfaro Zamora, Head of State of Costa Rica (1842–1844)
• Mexico –
  1. Antonio López de Santa Anna, President of Mexico (1841–1842)
  2. Nicolás Bravo, President of Mexico (1842–1843)
• Republic of Texas – Sam Houston, President of the Republic of Texas (1841–1844)
• United States - John Tyler, President of the United States (1841–1845)

Oceania

• Kingdom of Hawaii – Kamehameha III (1823–1854)
• New Zealand
  • Monarch – Victoria (1837–1901)
  • Lieutenant-Governor - William Hobson, Lieutenant-Governor of New Zealand (1840–1842)
• Tonga – Aleamotuʻa, Tu'i Kanokupolu (1827–1845)

South America

• Argentine Confederation – Juan Manuel de Rosas, Governor of Buenos Aires Province in charge of the Foreign Relations of the Argentine Confederation (1835–1851)
• Bolivia – José Ballivián Segurola, President of Bolivia (1841–1847)
• Empire of Brazil – Pedro II (1831–1889)
• Uruguay – Fructuoso Rivera, President of Uruguay (1839–1843)