List of state leaders in 1806
Africa
- Ashanti Confederacy – Osei Bonsu, Asantehene
- Kingdom of Buganda – Semakokiro
- Bunyoro – Nyamutukura Kyebambe III, Omukama of Bunyoro
- Kingdom of Burundi – Ntare IV Rugamba
- Kingdom of Dahomey – Adandozan
- Ethiopian Empire – Egwale Seyon Hezqeyas
- Kingdom of Kaffa - Hoti Gaocho
- Sultanate of Ndzuwani – Alawi bin Husain
- Kingdom of Rwanda – Yuhi III
- Wadai Empire – Abd al-Karim Sabun
- Zulu – Senzangakona, King of the Zulu
Asia
- Alirajpur State - Pratap Singh I
- Durrani Empire – Shoja Shah
- China - Jiaqing Emperor
- Empire of Japan
- *Monarch – Kōkaku
- *Tokugawa shogunate – Tokugawa Ienari
- *Ryukyu Kingdom - Shō Kō
- India
- * Maratha Empire - Baji Rao II, Peshwa
- Jhansi State -
- Khanate of Kokand – 'Alim Khan
- Joseon – Sunjo
- Kingdom of Luang Phrabang - Anurutha
- Sultanate of the Maldives – Mu'in ad-Din I Muhammad
- Nepal – Girvan Yuddha Bikram Shah, Maharajadhiraja of Nepal
- Persia – Fat′h-Ali Shah Qajar, Qajar dynasty
- Siam – Rama I
- Sikh Empire – Ranjit Singh, Maharaja of the Sikh Empire
- Đại Việt – Gia Long
Europe
- Principality of Abkhazia – Kelesh Begi
- Andorra –
- * Francesc Antoni de la Dueña y Cisneros, Bishop of Urgell
- * French Co-prince
- *# Napoleon reclaims title of Co-prince of Andorra
- *# Napoleon I, Emperor of the French
- Batavian Republic – Rutger Jan Schimmelpenninck, Raadspensionaris of the Batavian Republic
- Carrara – Felice Pasquale Bacciochi, Prince of Carrara
- Kingdom of Denmark–Norway
- * Monarch – Christian VII
- * Minister of State - Christian Gunther
- Kingdom of Etruria – Charles Louis
- First French Empire – Napoleon
- Kingdom of Holland – Louis I
- Holy Roman Empire – Francis II, Holy Roman Emperor *Holy Roman Empire abolished in 1806
- *Electoral States *Note ruler's change in title during period of reign
- #Kingdom of Bohemia - Francis I, King of Bohemia and Emperor of Austria
- #Electorate of Regensburg - Karl Theodor von Dalberg, Archbishop of Regensburg
- #Kingdom of Bavaria - Maximilian I
- #Kingdom of Saxony - Frederick Augustus I
- #Electorate of Brandenburg – Frederick William III also King of Prussia
- #Electorate of Hanover - George III
- #Kingdom of Württemberg - Frederick I
- #Electorate of Baden - Karl Friedrich, became Grand Duke of Baden
- #Electorate of Hesse - William I, Elector of Hesse
- #Electorate of Würzburg - Ferdinand
- Kingdom of Hungary – Francis
- Kingdom of Italy – Napoleon
- *Viceroy Eugène de Beauharnais
- Moldavia
- #Alexandru Moruzi, Voivod of Moldavia
- #Scarlat Callimachi, Voivod of Moldavia
- #Alexandru Moruzi, Voivod of Moldavia
- Prince-Bishopric of Montenegro – Petar I Petrović Njegoš
- Kingdom of Naples
- #Ferdinand IV -- deposed in Naples, 1806
- #Joseph I
- Ottoman Empire
- * Sultan - Selim III
- *Grand Vizier -
- *# Hafiz Ismail Pasha
- *# Hilmi Ibrahim Pasha
- Papal States – Pope Pius VII
- Kingdom of Portugal and the Algarves –
- *Monarch – Maria I
- *Prince-Regent – Prince John
- Kingdom of Prussia – Frederick William III
- *Chief Minister -
- #Count Karl August von Hardenberg
- #Count Christian Heinrich Kurt von Haugwitz
- #Karl Friedrich von Beyme
- Russian Empire – Alexander I
- Kingdom of Sardinia – Victor Emmanuel I
- Kingdom of Sicily – Ferdinand III
- Kingdom of Spain – Charles IV
- Kingdom of Sweden – Gustav IV Adolf
- Switzerland – Andreas Merian, Landammann der Schweiz
- United Kingdom of Great Britain and Ireland
- * Monarch – George III
- * Prime Minister -
- *#William Pitt
- *#The Lord Grenville
- Wallachia – Constantine Ypsilanti, Voivod of Wallachia
Middle East and North Africa
- Abu Dhabi – Shakhbut bin Dhiyab, Shaikh of Abu Dhabi
- Ottoman Algeria
- #Mustapha VI ben Ibrahim
- #Ahmed ben Ali
- Egypt Eyalet – Muhammad Ali Pasha, Viceroy of Egypt
- Sultanate of Morocco – Slimane
- Persia – Fath Ali Shah Qajar
- Tripoli – Yusuf ibn Ali Karamanli, Pasha of Tripoli
- Beylik of Tunis – Hamouda
North America and the Caribbean
- First Empire of Haiti – Jacques I
- State of Haiti – Henri Christophe, Provisional Chief of the Haitian Government *later President and then King
- Republic of Haiti – Henri Christophe, President of Haiti
- Miskito Nation – George Frederic Augustus I, King of the Miskito Nation
- United States - Thomas Jefferson, President of the United States
