List of state leaders in 1904
1903 state leaders - Events of 1904 - 1905 state leaders - State leaders by year
Africa
- Egypt -
- Ethiopia - Menelik II, Emperor of Ethiopia (1889–1913)
- Liberia
- Morocco -
- Monarch - Abd al-Aziz, Sultan of Morocco (1894–1908)
- Grand Vizier - Muhammad al-Mufaddal bin Muhammad al-Garit, Acting Grand Vizier of Morocco (1901–1906)
- Tunis -
- Monarch - Muhammad al-Hadi, Bey of Tunis (1902–1906)
- Grand Vizier - Mohamed Aziz Bouattour, Grand Vizier of Tunis (1883–1907)
- French Resident-General - Étienne Pichon, French Resident-General in Tunis (1901–1907)
- Zanzibar -
- Monarch - Ali ibn Hamoud, Sultan of Zanzibar (1902–1911)
- Grand Vizier - A.S. Rogers, Grand Vizier of Zanzibar (1901–1906)
- British Consul-General -
- Sir Charles Eliot, British Consul-General in Zanzibar (1900–1904)
- Basil Cave, British Consul-General in Zanzibar (1904–1908)
Asia
- Afghanistan - Habibullah Khan, Emir of Afghanistan (1901–1919)
- Cambodia -
- Monarch -
- Norodom, King of Cambodia (1860–1904)
- Sisowath, King of Cambodia (1904–1927)
- French Resident-General =
- Henri Félix de Lamothe, French Resident-General in Cambodia (1902–1904)
- Jules Louis Morel, French Resident-General in Cambodia (1904–1905)
- Champasak - Bua Laphan, Prince of Champasak (1900–1946)
- China (Qing Dynasty)
- India -
- Japan -
- Korea (Korean Empire) - Gojong, Emperor of Korea (1864–1907, King before 1897)
- Luang Phrabang -
- Monarch -
- Sakkarin, King of Luang Phrabang (1895–1904)
- Sisavang Vong, King of Luang Phrabang (1904–1945)
- French Resident - Marcel-Auguste-Armand Tournier, French Resident in Luang Phrabang (1899–1905)
- Nepal -
- Oman - Faisal bin Turki, Sultan of Oman (1888–1913)
- Persia -
- Monarch - Mozzafar-al-Din Shah, Shah of Persia (1896–1907)
- Premier -
- Mirza Ali Ashgar Amin al-Sultan, Premier of Persia (1898–1904)
- Aynu al-Daula, Premier of Persia (1904–1906)
- Qu'aiti - Awadh I bin Omar Al Qu'aiti, Sultan (1902–1909)
- Siam - Chulalongkorn (Rama V), King of Siam (1868–1910)
- Vietnam - Thanh Tai, Emperor of Vietnam (1889–1907)
Australia and Oceania
Europe
North America
- Canada
- Costa Rica - Ascensión Esquivel Ibarra, President of Costa Rica (1902–1906)
- Cuba: Tomás Estrada Palma, President of Cuba (1902–1906)
- Dominican Republic: Carlos Felipe Morales, President of the Dominican Republic (1903–1906)
- El Salvador: Pedro José Escalón, President of El Salvador (1903–1907)
- Guatemala: Manuel Estrada Cabrera, President of Guatemala (1898–1920)
- Haiti: Pierre Nord Alexis, President of Haiti (1902–1908)
- Honduras: Manuel Bonilla, President of Honduras (1903–1907)
- México: Porfirio Díaz, President of Mexico (1884–1911)
- Nicaragua: José Santos Zelaya, President of Nicaragua (1893–1909)
- Panama
- José Agustín Arango, Chairman of the Provisional Government Junta of Panama (1903–1904)
- Manuel Amador Guerrero, President of Panama (1904–1908)
- United States: Theodore Roosevelt, President of the United States (1901–1909)
South America
- Argentina -
- Julio A. Roca, President of Argentina (1898–1904)
- Manuel A. Quintana, President of Argentina (1904–1906)
- Bolivia -
- Manuel Pando, President of Bolivia (1899–1904)
- Ismael Montes, President of Bolivia (1904–1909)
- Brazil - Francisco de Paula Rodrigues Alves, President of Brazil (1902–1906)
- Chile - Germán Riesco, President of Chile (1901–1906)
- Colombia -
- José Manuel Marroquín, President of Colombia (1900–1904)
- Rafael Reyes, President of Colombia (1904–1909)
- Ecuador - Leonidas Plaza Gutiérrez, President of Ecuador (1901–1905)
- Paraguay -
- Juan Antonio Escurra, President of Paraguay (1902–1904)
- Juan Bautista Gaona, Provisional President of Paraguay (1904–1905)
- Peru -
- Manuel Candamo, President of Peru (1903–1904)
- Serapio Calderón, Acting President of Peru (1904)
- José Pardo y Barreda, President of Peru (1904–1908)
- Uruguay - José Batlle y Ordóñez, President of Uruguay (1903–1907)
- Venezuela - Cipriano Castro, President of Venezuela (1899–1908)