List of heads of state 1815
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Africa
- 
Egypt
- Viceroy and Ottoman Pasha: Muhammad Ali Pasha (1805–1848)
 
 
- 
Ethiopia
- Emperor : Egwala Seyon (1801–1818)
 
 
- 
Burundi
- King: Ntare IV. Rugamba (approx. 1796 – approx. 1850)
 
 
- 
Morocco ( Alawid Dynasty)
- Sultan: Mulai Sulaiman (1792–1822)
 
 
- 
Tunisia ( Husainid dynasty)
- Sultan: Mahmud Bey (1814-1824)
 
 
America
North America
- 
Mexico  (controversial)
- Viceroy Félix María Calleja del Rey (1813–1816)
 
 
- 
United States of America
- Head of State or Government: President James Madison (1809-1817)
 
 
Central America
- 
Haiti  (controversial)
- Ruler: King Heinrich I (1806–1820)
 
 
South America
- 
Brazil
- Queen Maria I (1815-1816), therefore incapacitated for her Prince Regent Johann
 
 
- 
Chile  (controversial, occupied by Spain)
- Head of State and Government: (vacant)
 
 
- 
New Granada  (controversial, today Colombia )
- Spanish governor and captain general: Francisco Montalvo y Ambulodi (1813–1816)
 - Head of State and Government:
- Chairman of the Triumvirate Custodio García Rovira (1814–28 March 1815)
 - President of the Triumvirate José Miguel Pey de Andrade (March 28 - July 28, 1815)
 - Chairman of the Triumvirate Manuel Rodríguez Torices (July 28 - November 15, 1815)
 - President Camilo Clemente Torres Tenorio (November 15, 1815–1816)
 
 
 
- 
Paraguay  (controversial)
- Head of State and Government: Consul Gaspar Rodríguez de Francia (1814–1840)
 
 
- 
Viceroyalty of Peru
- Viceroy : José Fernando Abascál y Sousa (1806–1816)
 
 
- 
Río de la Plata  (controversial, now Argentina )
- Head of State and Government:
- Chief Director Gervasio Antonio de Posadas (1814–9 January 1815)
 - Chief Director Carlos María de Alvear (January 9th - April 15th, 1815)
 - Chief Director Juan José Viamonte (April 18 - April 20, 1815)
 - Chief Director Ignacio Álvarez Thomas (April 20, 1815–1816)
 
 
 - Head of State and Government:
 
- 
Venezuela
- Head of State or Government:?
 
 
Asia
- 
Abu Dhabi
- Sheikh: Shakhbut bin Dhiyab (1793-1816)
 
 
- 
Afghanistan
- King : Mahmud Shah (1801–1803) (1809–1818)
 
 
- 
China ( Qing Dynasty )
- Emperor: Jia Qing (1796-1820)
 
 
Australia and Oceania
- 
Hawaii
- King: Kamehameha I (1795–1819)
 
 
Europe
- 
Andorra
- 
Co-princes :
- 
French ruler :
- King of France: Louis XVIII. (1814– March 1, 1815)
 - Emperor of the French: Napoléon I (March 1 - June 22, 1815)
 - King of France: Louis XVIII. (June 22, 1815-1824)
 
 - Bishop of Urgell : Francesc Antoni de la Dueña y Cisneros (1797–1816)
 
 - 
French ruler :
 
 - 
Co-princes :
 
- 
Berg  (on June 8th in Prussia)
- Ruler: (vacant)
 
 
- 
Denmark
- King : Friedrich VI. (1808–1839) (1808–1814 King of Norway)
 
 
- 
German Confederation (from June 8th)
- Austria : Emperor Franz I (1792–1835)
 - 
Prussia
- King : Friedrich Wilhelm III. (1797–1840) (1797–1806 Elector of Brandenburg)
 
 - Anhalt-Bernburg : Duke Alexius Friedrich Christian (1796–1834)
 - Anhalt-Dessau : Duke Leopold III. (1751-1817)
 - Anhalt-Köthen : Duke Ludwig August (1812–1818)
 - Baden : Grand Duke Karl Ludwig Friedrich (1811–1818)
 - Bavaria : King Maximilian I (1799–1825) elector until 1805
 - Braunschweig (restituted on June 8th) Duke: Karl II. (June 16, 1815–1831)
 - 
Bremen  (restituted as Free City on June 8th)
- Mayor : Mayor Georg Gröning (1815–1821)
 
 - 
Frankfurt  (restituted as Free City on June 8th)
- Mayor: (vacant)
 
 - 
Hamburg  (restituted as Free City on June 8th)
- Mayor Daniel Lienau ( 1798–1811 , 1813–1816), Friedrich von Graffen ( 1801–1811 , March 18, 1813–1820), Wilhelm Amsinck ( 1802–1811 , 1813–1831), Johann Arnold Heise ( 1807–1811 , 1813–1834)
 
 - Hessen-Darmstadt : Grand Duke Ludwig I (1790–1830)
 - Hessen-Kassel (restituted on June 8th)
 - 
Hanover  (restituted on June 8th)
- Ruler: King George III. (1815-1820, incapacitated )
 - Regent: Crown Prince Georg August Friedrich (1811–1830)
 
 - Hohenzollern-Hechingen : Prince Friedrich (1810–1838)
 - Hohenzollern-Sigmaringen : Prince Anton Aloys (1785–1831)
 - 
Holstein and Lauenburg  (restituted on June 8th)
- Ruler: Duke Friedrich VI. , King of Denmark (1808 / 1815–1839)
 
 - Liechtenstein : Prince Johann I Josef (1805–1836)
 - 
lip
- Ruler: Prince Leopold II (1800-1851, under guardianship )
 - Regent: Princess Pauline zur Lippe (1802-1820)
 
 - Lübeck (restituted as a Free City on June 8th)
 - 
Luxembourg  (founded June 8th)
- Ruler: Grand Duke Wilhelm I , King of the Netherlands (June 8, 1815–1840)
 
 - Mecklenburg-Schwerin : Duke Friedrich Franz I (1785–1837, from June 8 as Grand Duke )
 - Mecklenburg-Strelitz : Duke Karl II. (1794–1816, from June 8 as Grand Duke )
 - Nassau : Duke Friedrich August (1806–1816)
 - 
Oldenburg  (restituted on June 8th)
- Ruler: Administrator Peter Friedrich Ludwig ( 1785–1810 , 1815–1829)
 
 - Reuss older line : Prince : Heinrich XIII. (1800-1817)
 - Reuss-Schleiz : Prince?
 - Reuss-Lobenstein : Prince?
 - Reuss-Ebersdorf : Prince?
 - 
Saxony : King Friedrich August I (1763–1827)
- Ruler: Elector Wilhelm I ( 1785–1806 , June 8, 1815–1821)
 
 - Saxe-Coburg-Saalfeld : Duke Ernst I (1806–1826)
 - Saxe-Gotha-Altenburg : Duke August (1804–1822)
 - Saxony-Hildburghausen : Duke Friedrich (1780–1826)
 - 
Saxony-Meiningen
- Ruler: Duke Bernhard II (1803–1866, under guardianship )
 - Regent: Duchess Louise Eleonore zu Hohenlohe-Langenburg (1803–1822)
 
 - Saxony-Weimar-Eisenach : Duke Carl August (1758–1828, from June 8 as Grand Duke )
 - Schaumburg-Lippe : Prince Georg Wilhelm (1787–1860)
 - Schwarzburg-Rudolstadt : Prince Friedrich Günther (1807–1867)
 - Schwarzburg-Sondershausen : Prince Günther Friedrich Karl I (1794–1835)
 - Waldeck-Pyrmont : Prince Georg II. (1813–1845)
 - Württemberg : King Friedrich I (1797–1816) Duke 1797–1806, King 1806–1816
 
 
- 
Frankfurt  (on June 8th in Hessen-Kassel, Bavaria and Prussia)
- Ruler: (vacant)
 
 
- 
France
- Ruler:
- King: Louis XVIII. (1814– March 1, 1815)
 - Emperor : Napoléon I (March 1 - June 22, 1815)
 - King: Louis XVIII. (June 22, 1815-1824)
 
 
 - Ruler:
 
- 
Hohengeroldseck  (annexed by Austria )
- Ruler: Prince Philipp von der Leyen (1806–1815)
 
 
- 
Isenburg-Birstein  (on June 9th in Hanover)
- Ruler: Prince Carl (1803–1814)
 
 
- 
Italian states
- Papal States
 - Lombardy-Veneto (personal union with Austria 1815–1859 / 66)
 - 
Lucca
- Duchess: Maria Luisa (1815–1824) did not take office until 1817
 
 - 
Massa and Carrara
- Duchess : Maria Beatrice (1790–1829)
 
 - 
Modena and Reggio
- Duke : Francis IV (1814–1846)
 
 - 
Naples
- King : Joachim Murat (1808–1815)
 - King: Ferdinand IV. (1759-1806) (1815-1816)
 
 - 
Parma, Piacenza and Guastalla
- Duchess : Marie-Louise (1814–1847)
 
 - 
San Marino
- Capitani Reggenti : Lodovico Belluzzi , Maria Giuseppe Malpeli (October 1, 1814– April 1, 1815)
 - Capitani Reggenti: Giuseppe Mercuri , Pier Vincenzo Giannini (April 1, 1815– October 1, 1815)
 - Capitani Reggenti: Francesco Maria Belluzzi , Filippo Filippi (October 1, 1815– April 1, 1816)
 
 - 
Sardinia
- King : Victor Emanuel I (1802–1821)
 
 - 
Sicily
- Ferdinand III. (1759-1816)
 
 - 
Tuscany
- Grand Duke : Ferdinand III. (1790-1801) (1814-1824)
 
 
 
- 
Krakow  (established May 3rd)
- Mayor:?
 
 
- 
Monaco
- Prince : Honoré IV. (1814-1819)
 
 
- 
Montenegro (until 1878 under Ottoman suzerainty)
- Prince-Bishop (Vladika) : Petar I. Petrović-Njegoš (1782–1830)
 
 
- 
Netherlands  (founded June 8th)
- Ruler: King Wilhelm I (March 16, 1815–1840)
 
 
- 
Ottoman Empire
- Sultan: Mahmud II. (1808–1839)
 
 
- 
Portugal
- Queen : Maria I (1777–1816) (incapacitated in 1792) (1815–1816 Queen of Brazil)
 - Regent: Johann Duke of Braganza (1792–1816) (1816–1826 King of Portugal, 1815–1816 Regent of Brazil, 1816–1822 King of Brazil)
 
 
- 
Prussia
- King : Friedrich Wilhelm III. (1797–1840) (1797–1806 Elector of Brandenburg)
 
 
- 
Russia
- Emperor : Alexander I (1801-1825)
 
 
- 
Salm-Kyrburg  (annexed by?)
- Ruler: ?
 
 
- 
Salm-Salm  (annexed by?)
- Ruler: ?
 
 
- 
Sweden
- King : Charles XIII. (1809–1818) (1814–1818 King of Norway)
 
 
- 
Spain
- King : Ferdinand VII ( 1808 , 1813–1833)
 
 
- 
United Kingdom
- Head of State:
- King George III (1801–1820, incapacitated since 1811) (1760–1801 King of Great Britain and Ireland, 1760–1806 Elector of Braunschweig-Lüneburg, 1814–1820 King of Hanover)
 - Regent: Georg, Prince of Wales (1811–1820) (1820–1830 King of the United Kingdom, 1820–1830 King of Hanover)
 
 - Head of Government: Prime Minister Robert Jenkinson, 2nd Earl of Liverpool (1812–1827)
 
 - Head of State:
 
- 
Wallachia  (under Ottoman rule)
- Prince : Ioannis Georgios Karatzas (1812–1818)
 
 
- 
Westphalen  (on June 8th in Hanover and Hessen-Kassel)
- Ruler: (vacant)
 
 
- 
Würzburg  (on June 8th in Bavaria)
- Ruler: (vacant)