1798 state leaders - Events of 1799 - 1800 state leaders - State leaders by year

Africa

• Ashanti Confederacy - Osei Kwame Panyin, Asantehene (1777-1803)
• Buganda - Semakokiro, King of Buganda (1771-1814)
• Bunyoro - Nyamutukura Kyebambe III, Omukama of Bunyoro (1786-1835))
• Burundi - Ntare IV Rugamba, King of Burundi (1796-1852)
• Dahomey - Adandozan, King of Dahomey (1797-1818)
• Ethiopia -
  • Tekle Giyorgis I, Emperor of Ethiopia (third reign, 1798-1799)
  • Salomon III, Emperor of Ethiopia (restored, 1799)
  • Demetros, Emperor of Ethiopia (1799-1800)
• Ndzuwani - Alawi bin Husain, Sultan of Ndzuwani (1796-1816)
• Rwanda - Yuhi III, Mwami of Rwanda (1797-1830)
• Zulu - Senzangakona, King of the Zulu (1781-1816)

Americas

• New Spain - Miguel José de Azanza, Viceroy (1798-1800)
• United States - John Adams, President of the United States (1797-1801)

Asia

• Afghanistan - Zaman Shah, King of Afghanistan (1793-1801)
• China (Qing Dynasty) - Jiaqing, Emperor of China (1796-1820)
• Japan
  • Monarch - Kokaku, Emperor of Japan (1780-1817)
  • Shogun (Tokugawa) - Tokugawa Ienari, Shogun of Japan (1786-1837)
  • Ryūkyū Kingdom - Shō On, King of Ryūkyū (1796-1802)
• Korea (Joseon Dynasty) - Jeongjo, King of Joseon (1776-1800)

Europe

• Andorra - Francesc Antoni de la Dueña y Cisneros, Bishop of Urgell (1797-1816)
• Batavian Republic - Uitvoerend Bewind of the Batavian Republic (1798-1801)
• Denmark–Norway
  • Monarch - Christian VII, King of Denmark (1766-1808)
  • Prime Minister - Christian Gunther, Minister of State of Denmark (1797-1810)
• France -
  1. Directory (1795-1799)
  2. Consulate - Napoleon Bonaparte, First Consul (1799-1804)
• Great Britain -
  • Monarch - George III, King of Great Britain (1760-1820)
  • Prime Minister - William Pitt the Younger, Prime Minister of Great Britain (1783-1801, 1804-1806)
• Holy Roman Empire - Franz II, Holy Roman Emperor (1792-1806)
• Ireland - George III, King of Ireland (1760-1820)
• Moldavia -
  1. Alexandru Callimachi, Prince of Moldavia (1795-1799)
  2. Constantine Ypsilanti, Prince of Moldavia (1799-1801)
• Portugal - Maria I Francisca, Queen of Portugal (1777-1816)
• Prussia - Frederick William III, King of Prussia (1797-1840)
• Russia - Paul I, Tsar of Russia (1796-1801)
• Spain - Charles IV, King of Spain (1788-1808)
• Sweden - Gustav IV Adolf, King of Sweden (1792-1809)
• Wallachia -
  1. Constantin Hangerli, Prince of Wallachia (1797-1799)
  2. Alexandru Moruzi, Prince of Wallachia (1799-1801)

Middle East and North Africa

• Abu Dhabi - Shakhbut bin Dhiyab, Shaikh of Abu Dhabi (1793-1816)
• Morocco - Slimane, Sultan of Morocco (1792-1822)
• Ottoman Empire
  • Monarch - Selim III, Sultan of the Ottoman Empire (1789-1807)
  • Grand Vizier - Yusuf Ziyaüddin Pasha, Ottoman Grand Vizier (1798-1805)
• Persia - Fath Ali Shah, Shah of Persia (1797-1834)

Oceania

• Tonga -
  1. Tukuʻaho, Tuʻi Kanokupolu (1797-1799)
  2. Maʻafu-ʻo-limuloa, Tuʻi Kanokupolu (1799, for a few hours only)