List of state leaders in 1866

List of state leaders in 1865 - Events of 1866 - List of state leaders in 1867 - State leaders by year

Africa

*Ashanti Confederacy - Kwaku Dua I Panyin, Asantehene (1834-1867)
* Buganda - Mutesa I, King of Buganda (1856-1884)
* Bunyoro - Kyebambe IV, Omukama of Bunyoro (1852-1869)
* Burundi - Mwezi IV Gisabo, King of Burundi (1852-1908)
* Dahomey - Glele, King of Dahomey (1856-1889)
* Ethiopia - Tewodros II, Emperor of Ethiopia (1855-1868)
* Liberia - Daniel Bashiel Warner, President of Liberia (1864-1868)
* Rwanda - Kigeli IV, King of Rwanda (1853-1895)
* Sokoto Caliphate
**Caliph -
**# Ahmad bin Atiku, Sokoto Caliph (1859-1866)
**# Ali bin Bello II, Sokoto Caliph (1866-1867)
**Grand Vizier - Ibrahim Khalilu, Sokoto Grand Vizier (1859-c.1874)
* Zanzibar - Sayyid Majid bin Said Al-Busaid, Sultan of Zanzibar (1856-1870)
*Zulu - Mpande kaSenzangakhona, King of the Zulu (1840-1872)

Asia

* Afghanistan
** Emir -
**# Shir Ali Khan, Emir of Afghanistan (1863-1866)
**# Mohammed Afzal Khan, Emir of Afghanistan (1866-1868)
* China (Qing Dynasty) - Tóngzhì, Emperor of China (1861-1875)
* Japan
**Monarch - Kōmei, Emperor of Japan (1846-1867)
**Shogun (Tokugawa) - Tokugawa Iemochi, Shogun of Japan (1858-1866)
*Korea (Joseon Dynasty) - Gojong, King of Joseon (1864-1907, Emperor after 1897)
* Oman -
*# Thuwaini bin Said, Sultan of Oman (1856-1866)
*# Salim bin Thuwaini, Sultan of Oman (1866-1868)

Europe

* Belgium
**Monarch - Léopold II, King of the Belgians (1865-1909)
**Cabinet Chief - Charles Rogier, Cabinet Chief of Belgium (1847-1852, 1857-1868)
* Denmark
** Monarch - Christian IX, King of Denmark (1863-1906)
** Prime Minister - Christian Emil, Prime Minister of Denmark (1865-1870)
*France - Napoleon III, Emperor of the French (1852-1870)
*German Confederation - dissolved in 1866 as a result of the Austro-Prussian War
**Franz Joseph of Austria, President of the German Confederation (1850-1866),
**Austria - Franz Joseph I, Emperor of Austria (1848-1916)
**Bohemia - Franz Joseph I, King of Bohemia (1848-1916)
** Luxembourg
***Monarch - William III, King of the Netherlands (1849-1890)
***Prime Minister - Victor, Baron de Tornaco, Prime Minister of Luxembourg (1860-1867)
** Prussia -
***Monarch - Wilhelm I, King of Prussia (1861-1888)
***Prime Minister - Otto von Bismarck, Minister-President of Prussia (1862-1873)
** Bavaria - Ludwig II, King of Bavaria (1864-1886)
** Saxony - Johann, King of Saxony (1854-1873)
** Hanover -
*** George, King of Hanover (1851-1866)
*** Defeated and annexed by Prussia in 1866
** Württemberg - Karl, King of Württemberg (1864-1891)
*Holy See - Pope Pius IX (1846-1878)
*Hungary - Franz Joseph I of Austria, King of Hungary (1848-1916)
*Italy -
**Monarch - Vittorio Emanuele II, King of Italy (1861-1878)
**Prime Minister -
**# Marchese la Marmora, Prime Minister of Italy (1864 - 1866)
**# Bettino Ricasoli, Prime Minister of Italy (1866-1867)
*Moresnet
**Monarchs -
***Léopold II, King of the Belgians (1865-1909)
***Wilhelm I, King of Prussia (1861-1888)
**Mayor - Joseph Kohl, Mayor of Moresnet (1859-1882)
* Netherlands
**Monarch - William III, King of the Netherlands (1849-1890)
**Prime Minister -
**#Jan Rudolf Thorbecke, Chairman of the Dutch council of ministers (1849-1853, 1862-1866, 1871-1872)
**#Isaäc Dignus Fransen van de Putte, Chairman of the Dutch council of ministers (1866)
**#Julius van Zuylen van Nijevelt, Chairman of the Dutch council of ministers (1866-1868)
*Norway - Carl IV, King of Norway (1859-1872)
*Ottoman Empire - Abd-ul-Aziz, Sultan of the Ottoman Empire (1861-1876)
*Portugal - Luis, King of Portugal (1861-1889)
*Romania
** Prince -
**# Alexander John Cuza, Prince of Romania (1859-1866)
**# Carol I, Prince of Romania (1866-1881)
*Russia - Alexander II, Tsar of Russia (1855-1881)
* Spain - Isabella II, Queen of Spain (1833-1868)
* Sweden - Kingdom of Sweden-Norway
**Monarch - Charles XV, King of Sweden (1859-1872)
**Chief Minister - Louis Gerhard De Geer , Prime Minister for Justice of Sweden (1858-1870)
**Foreign Minister - Ludvig Manderström, Prime Minister for Foreign Affairs of Sweden-Norway (1858-1868)
*United Kingdom
**Monarch - Victoria, Queen of the United Kingdom (1837-1901)
** Prime Minister -
**# John Russell, 1st Earl Russell, Prime Minister of the United Kingdom (1865-1866)
**# Edward Smith-Stanley, 14th Earl of Derby, Prime Minister of the United Kingdom (1852, 1858, 1866-1868)

Middle East and North Africa

* Abu Dhabi - Zaid ibn Khalifa, Shaikh of Abu Dhabi (1855-1909)
* Egypt - Ismail, Governor of Egypt (1863-1867)
* Morocco - Mohammed IV, Sultan of Morocco (1859-1873)
* Ottoman Empire
**Monarch - Abd-ul-Aziz, Sultan of the Ottoman Empire (1861-1876)
**Grand Vizier -
**# Keçecizade Mehmed Fuad Pasha, Ottoman Grand Vizier (1863-1866)
**# Mütercim Mehmed Rüstü Pasha, Ottoman Grand Vizier (1866-1867)

North America

*Province of Canada
**Governor: The Viscount Monck of Ballytrammon, Governor of the Province of Canada (1861–1867)
**Joint Premiers: Sir John A. Macdonald and Sir Narcisse-Fortunat Belleau, Joint Premiers of the Province of Canada (1865–1867)
*Costa Rica:
*# Jesús Jiménez Zamora , President of Costa Rica (1863–1866)
*# José María Castro Madriz, President of Costa Rica (1866–1868)
*Mexico: Maximilian of Habsburg, Emperor of Mexico (1864–1867)
*United States: Andrew Johnson, President of the United States (1865–1869)

South America

* Brazil - Pedro II, Emperor of Brazil (1831-1889)

List of state leaders in 1865 - Events of 1866 - List of state leaders in 1867 - State leaders by year