List of state leaders in 1808

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
• Fulani Empire – Usman dan Fodio, Fulani Caliph
• Kingdom of Kaffa - Hoti Gaocho
• Mayotte – Suhali bin Salim, Sultan of Mayotte
• Sultanate of Ndzuwani – Alawi bin Husain
• Kingdom of Rwanda – Yuhi III
• Wadai Empire – Abd al-Karim Sabun, Sultan of Wadai
• Zulu – Senzangakona, King of the Zulu

  Asia

• Afghanistan –
• * Kabul - Shoja Shah, King of Afghanistan
• ** Qaysar Shah, in rebellion
• * Kandahar -
• *# Shoja Shah, King of Afghanistan
• *# Kandahar secedes from Kabul control
• *# Mahmud Shah, King of Kandahar
• *# Kandahar returns to Kabul control
• *# Shoja Shah, King of Afghanistan
• ** Qaysar Shah, in rebellion
• Ahom kingdom – Suklingphaa
• Alirajpur State - Pratap Singh I
• Sultanate of Brunei – Muhammad Kanzul Alam
• China - Jiaqing Emperor
• Empire of Japan
• *Monarch – Kōkaku
• *Tokugawa shogunate – Tokugawa Ienari
• *Ryukyu Kingdom - Shō Kō
• 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
• Siam – Rama I
• Sikh Empire – Ranjit Singh, Maharaja of the Sikh Empire

  Europe

• Andorra –
• * Francesc Antoni de la Dueña y Cisneros, Bishop of Urgel
• * Napoleon I, Emperor of the French
• Austria - Francis I, Emperor of Austria *Note: Leader of Austria held the title of Archduke prior to 1804
• *Kingdom of Bohemia – Francis
• *Kingdom of Hungary – Francis
• Confederation of the Rhine
• * Kingdom of Bavaria – Maximilian I *Note: Leader of Bavaria held title of Elector prior to 1805
• ** Prime Minister – Count Maximilian Joseph von Montgelas
• * Kingdom of Saxony – Frederick Augustus I *Note: Leader of Saxony held the title of Elector prior to 1806
• *Kingdom of Westphalia – Jérôme Bonaparte
• * Kingdom of Württemberg – Frederick I *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 -
• *# Christian VII
• *# Frederick VI
• * Minister of State - Christian Gunther
• First French Empire – Napoleon I
• *Duchy of Warsaw – Frederick Augustus I
• Kingdom of Holland - Louis I
• Ottoman Empire
• *Sultan -
• # Mustafa IV
• # Mahmud II
• *Grand Vizier -
• # Çelebi Mustafa Pasha
• # Alemdar Mustafa Pasha
• # Memis Pasha
• # Çarhaci Ali Pasha
• Kingdom of Portugal and the Algarves –
• *Monarch – Maria I
• *Prince-Regent – Prince John
• Kingdom of Prussia –
• *Monarch – Frederick William III
• *Chief Minister -
• *# Heinrich Friedrich Karl, Baron von und zum Stein
• *# Count Karl Friedrich Ferdinand Alexander zu Dohna-Schlobitten
• Russian Empire – Alexander I
• Kingdom of Spain –
• # Charles IV
• #Ferdinand VII
• # Joseph Bonaparte
• Kingdom of Sweden – Gustav IV Adolf
• United Kingdom of Great Britain and Ireland
• * Monarch – George III
• * Prime Minister - William Henry Cavendish-Bentinck, 3rd Duke of Portland

  Middle East and North Africa

• Abu Dhabi – Shakhbut bin Dhiyab, Shaikh of Abu Dhabi
• Egypt – Muhammad Ali Pasha, Viceroy of Egypt
• Sultanate of Morocco – Slimane
• Persia – Fath Ali Shah

  North America and the Caribbean

• Miskito Nation – George Frederic Augustus I, King of the Miskito Nation
• United States - Thomas Jefferson, President of the United States

  Oceania

• Tonga – Tupou Malohi, Tuʻi Kanokupolu