List of state leaders in 1804

Africa

• Akwa Akpa – Ekpenyong Offiong Okoho, King of Akwa Akpa
• Ashanti Confederacy –
• # Osei Fofie, Asantehene
• # 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
• Sultanate of Ndzuwani – Alawi bin Husain
• Kingdom of Rwanda – Yuhi III
• Sabe – Ola Obe Yai, Oba
• Zulu – Senzangakona, King of the Zulu

  Asia

• Alirajpur State - Pratap Singh I
• Durrani Empire –
• * Kabul - Shoja Shah, King of Afghanistan
• * Kandahar -
• *# Shoja Shah, King of Afghanistan
• *# Kandahar secedes from Kabul control
• *# Kamran Shah, King of Kandahar
• China - Jiaqing Emperor
• Empire of Japan
• *Monarch – Kōkaku
• *Tokugawa shogunate – Tokugawa Ienari
• *Ryukyu Kingdom
• *#Shō Sei
• *#Shō Kō
• Khanate of Kokand – 'Alim Khan
• Joseon – Sunjo
• Sultanate of the Maldives – Mu'in ad-Din I Muhammad
• Kingdom of Luang Phrabang - Anurutha
• Nepal – Girvan Yuddha Bikram Shah, Maharajadhiraja of Nepal
• Siam – Rama I
• Sikh Empire – Ranjit Singh, Maharaja of the Sikh Empire

  Europe

• Principality of Abkhazia – Kelesh Begi
• Andorra – Francesc Antoni de la Dueña y Cisneros, Bishop of Urgell
• Batavian Republic – Staatsbewind
• Kingdom of Denmark–Norway
• * Monarch – Christian VII
• * Minister of State - Christian Gunther
• Kingdom of Etruria – Charles Louis
• First French Empire –
• *Consulate - Napoleon Bonaparte, First Consul
• *First Empire - Napoleon
• Holy Roman Empire – Franz II
• Ottoman Empire
• * Sultan - Selim III
• *Grand Vizier – Yusuf Ziyaüddin Pasha
• Kingdom of Portugal and the Algarves –
• *Monarch – Maria I
• *Prince-Regent – Prince John
• Kingdom of Prussia – Frederick William III
• Russian Empire – Alexander I
• Kingdom of Spain – Charles IV
• Kingdom of Sweden – Gustav IV Adolf
• United Kingdom of Great Britain and Ireland
• * Monarch – George III
• * Prime Minister -
• *#Henry Addington
• *#William Pitt

  Middle East and North Africa

• Abu Dhabi – Shakhbut bin Dhiyab, Shaikh of Abu Dhabi
• Sultanate of Morocco – Slimane
• Persia – Fath Ali Shah
• Beylik of Tunis –
• * Bey - Hammuda ibn Ali
• * Grand Vizier – Yusuf Sahib al-Tabi

  North America and the Caribbean

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