List of state leaders in 1799

Africa

• Akwa Akpa – Ekpenyong Offiong Okoho, King of Akwa Akpa
• Ashanti Confederacy – Osei Kwame Panyin, Asantehene
• Kingdom of Benin -
• Kingdom of Buganda – Semakokiro
• Bunyoro – Nyamutukura Kyebambe III, Omukama of Bunyoro
• Kingdom of Burundi – Ntare IV Rugamba
• Kingdom of Dahomey – Adandozan
• Ethiopian Empire –
• *Tekle Giyorgis I
• *Salomon III
• *Demetros
• Kingdom of Kaffa - Hoti Gaocho
• Kingdom of Kongo -
• Kingdom of Loango -
• *Tati, the Nganga Mvumbi
• Sultanate of Ndzuwani – Alawi bin Husain
• Wadai Empire – Muhammad Salih Derret ibn Jawda
• Kingdom of Rwanda – Yuhi III
• Zulu – Senzangakhona kaJama, King of the Zulu

  Americas

• United States – John Adams, President of the United States

  Asia

• Ahom Kingdom –
• Alirajpur State – Pratap Singh I
• Durrani Empire – Zaman Shah
• Burma – Bodawpaya
• China – Jiaqing Emperor
• Cambodia –
• Jaipur – Pratap Singh
• Empire of Japan
• *Monarch – Kōkaku
• *Tokugawa shogunate – Tokugawa Ienari
• *Ryukyu Kingdom – Shō On
• Joseon – Jeongjo
• Kingdom of Luang Phrabang – Anurutha
• Manipur - Rohinchandra
• Siam – Rama I
• Đại Việt – Nguyễn Quang Toản

  Europe

• Principality of Abkhazia – Kelesh Begi
• Andorra – Francesc Antoni de la Dueña y Cisneros, Bishop of Urgell
• Batavian Republic – Uitvoerend Bewind of the Batavian Republic
• Kingdom of Denmark–Norway
• * Monarch – Christian VII
• * Minister of State – Christian Günther von Bernstorff
• France –
• #Directory
• #Consulate – Napoleon Bonaparte, First Consul
• Kingdom of Great Britain –
• *Monarch – George III
• *Prime Minister – William Pitt the Younger
• Holy Roman Empire – Franz II
• Kingdom of Ireland – George III
• Principality of Moldavia –
• #Alexandru Callimachi
• #Constantine Ypsilantis
• 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 – Paul I
• Kingdom of Spain – Charles IV
• Kingdom of Sweden – Gustav IV Adolf
• Grand Duchy of Tuscany – Ferdinand III
• Principality of Wallachia –
• #Constantin Hangerli
• #Alexandru Moruzi

  Middle East and North Africa

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

  Oceania

• Kingdom of Tahiti – Pōmare I
• Tonga –
• #Tukuʻaho, Tuʻi Kanokupolu
• #Maʻafu-ʻo-limuloa, Tuʻi Kanokupolu