List of state leaders in 1805

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
• Ndzuwani – Alawi bin Husain
• Kingdom of Rwanda – Yuhi III
• Wadai Empire – Abd al-Karim Sabun
• Zulu – Senzangakona, King of the Zulu

  Asia

• Afghanistan –
• * Kabul - Shoja Shah, King of Afghanistan
• * Kandahar -
• *# Kamran Shah, King of Kandahar
• *# Kandahar returns to Kabul control
• *# Shoja Shah, King of Afghanistan
• Alirajpur State - Pratap Singh I
• 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

  Europe

• Principality of Abkhazia – Kelesh Begi
• Andorra – Francesc Antoni de la Dueña y Cisneros, Bishop of Urgell
• Batavian Republic
• # Staatsbewind
• # Rutger Jan Schimmelpenninck, Raadspensionaris
• Kingdom of Denmark–Norway
• * Monarch – Christian VII
• * Minister of State - Christian Gunther
• Kingdom of Etruria – Charles Louis
• First French Empire – Napoleon
• Holy Roman Empire – Francis II *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, Elector of Baden, became Grand Duke of Baden
• #Electorate of Hesse - William I
• #Electorate of Salzburg - Ferdinand *Exchanged Salzburg for Würzburg on December 25
• Kingdom of Hungary – Francis
• Italy – Napoleon, King of Italy
• *Italian Republic was declared the Kingdom of Italy on March 17
• *Viceroy Eugène de Beauharnais
• Moldavia – Alexandru Moruzi, Voivod of Moldavia
• Kingdom of Naples – Ferdinand IV
• Ottoman Empire
• * Sultan - Selim III
• *Grand Vizier -
• *# Yusuf Ziyaüddin Pasha
• *# Hafiz Ismail 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
• Russian Empire – Alexander I, Tsar of Russia
• Kingdom of Sardinia – Victor Emmanuel I
• Kingdom of Sicily – Ferdinand III
• Kingdom of Spain – Charles IV
• Kingdom of Sweden – Gustav IV Adolf
• United Kingdom of Great Britain and Ireland
• * Monarch – George III
• * Prime Minister - William Pitt
• 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, Pasha-Dey of Algiers
• Egypt Eyalet – Muhammad Ali Pasha, Viceroy of Egypt
• Sultanate of Morocco – Slimane
• Persia – Fath Ali Shah
• Tripoli – Yusuf ibn Ali Karamanli, Pasha of Tripoli
• Beylik of Tunis – Hamouda, Pasha-Day of Tunis

  North America and the Caribbean

• First Empire of Haiti – Jacques I
• United States - Thomas Jefferson, President of the United States