1906 state leaders - Events of 1907 - 1908 state leaders - State leaders by year

Africa

• Ethiopia - Menelik II, Emperor of Ethiopia (1889-1913)
• Liberia - Arthur Barclay, President of Liberia (1904-1912)
• Zanzibar - Sayyid Ali bin Hamud Al-Busaid, Sultan of Zanzibar (1902-1911)

Asia

• Afghanistan - Habibullah Khan, King of Afghanistan (1901-1919)
• China (Qing Dynasty)
  • Monarch - Guangxu, Emperor of China (1875-1908)
  • De facto ruler - Empress Dowager Cixi (1898-1908)
• Japan -
  • Monarch - Mutsuhito, the Meiji Emperor of Japan (1867-1912)
  • Prime Minister - Saionji Kinmochi, Prime Minister of Japan (1906-1908)
• Korea (Korean Empire) -
  1. Gojong, Emperor of Korea (1864-1907, King before 1897)
  2. Sunjong, Emperor of Korea (1907-1910)
• Oman - Faisal Bin Turki, Sultan of Oman (1888-1913)

Australia and Oceania

• Australia -
  • Monarch - Edward VII, King of the United Kingdom (1901-1910)
  • Governor-General - Henry Northcote, 1st Baron of Northcote, Governor-General of Australia (1904-1908)
  • Prime Minister - Alfred Deakin, Prime Minister of Australia (1905-1908)

• New Zealand
  • Monarch - Edward VII, King of the United Kingdom (1901-1910)
  • Governor-General - Lord Plunket, Governor-General of New Zealand (1904 - 1910)
  • Prime Minister - Joseph Ward, Prime Minister of New Zealand (1906 - 1912)
• Tonga
  • Monarch - George Tupou II, King of Tonga (1893 – 1918)
  • Prime Minister - S.T.Mateialona, Prime Minister of Tonga, (1905 – 1912)

Europe

• Austria-Hungary - Franz Joseph I, Emperor of Austria and King of Hungary (1848-1916)
  • Prime Minister of Austria - Baron Max Wladimir von Beck, Minister-President of Austria (1906-1908)
  • Prime Minister of Hungary - Sándor Wekerle (1906-1910)
• Belgium
  • Monarch - Léopold II, King of the Belgians (1865-1909)
  • Cabinet Chief -
  1. Paul, Comte de Smet de Naeyer, Cabinet Chief (1899-1907)
  2. Jules De Trooz, Cabinet Chief (1907-1908)
• Crete
  • High Commissioner - Alexandros Zaimis, High Commissioner of the Cretan State (1906-1913)
• Denmark
  • Monarch - Frederick VIII, King of Denmark (1906-1912)
  • Prime Minister - Jens Christian Christensen, Prime Minister of Denmark (1905-1908)
• France -
  • President - Armand Fallières, President of France (1906-1913)
  • Prime Minister - Georges Clemenceau, President of the Council (1906-1909)
• German Empire -
  • Monarch - Wilhelm II, German Emperor (1888-1918)
  • Chancellor - Count Bernhard von Bülow, Chancellor of Germany (1900-1909)
  • Prussia -
    • Monarch - Wilhelm II, King of Prussia (1888-1918)
    • Prime Minister - Count Bernhard von Bülow, Minister-President of Prussia (1900-1909)
  • Bavaria - Otto, King of Bavaria (1886-1913)
  • Saxony - Frederick Augustus III, King of Saxony (1904-1918)
  • Württemberg - William II, King of Württemberg (1891-1918)
• Italy
  • Monarch - Vittorio Emanuele III, King of Italy (1900-1946)
  • Prime Minister - Giovanni Giolitti, Prime Minister of Italy (1906-1909)
• Luxembourg
  • Monarch - Guillaume IV, Grand Duke of Luxembourg (1905-1912)
  • Prime Minister - Paul Eyschen, Prime Minister of Luxembourg (1888-1915)
• Netherlands -
  • Monarch - Wilhelmina, Queen of the Netherlands (1890-1948)
  • Prime Minister - Theo de Meester, Chairman of the Dutch council of ministers (1905-1908)
• Norway
  • Monarch - Haakon VII, King of Norway (1905-1957)
  • Prime Minister -
  1. Christian Michelsen, Prime Minister of Norway (1905-1907)
  2. Jørgen Løvland, Prime Minister of Norway (1907-1908)
• Ottoman Empire
  • Monarch - Abdul Hamid II, Sultan (1876-1909)
• Portugal
  • Monarch - Carlos I, King of Portugal (1889-1908)
  • Prime Minister - João Franco, President of the Council of Ministers (1906-1908)
• Spain
  • Monarch - Alfonso XIII, King of Spain (1886-1931)
  • Prime Minister -
    1. Antonio Aguilar Correa, President of the Government (1906-1907)
    2. Antonio Maura Montaner, President of the Government (1907-1909)
• Sweden -
  • Monarch -
  1. Oscar II, King of Sweden (1872-1907)
  2. Gustaf V, King of Sweden (1907-1950)
  • Prime Minister - Arvid Lindman, Prime Minister of Sweden (1906-1911)
• Kingdom of Tavolara - Carlo I, King of Tavolara (1899-1927)
• United Kingdom -
  • Monarch - Edward VII, King of the United Kingdom (1901-1910)
  • Prime Minister - Sir Henry Campbell-Bannerman, Prime Minister of the United Kingdom (1905-1908)

North America and Caribbean

• Canada
  • Monarch - Edward VII, King of the United Kingdom (1901-1910)
  • Governor-General - Earl Grey, Governor-General of Canada (1904-1911)
  • Prime Minister - Wilfrid Laurier, Prime Minister of Canada (1896-1911)
• Costa Rica - Cleto González Víquez, President of Costa Rica (1906–1910)
• Newfoundland
  • Monarch - Edward VII, King of the United Kingdom (1901-1910)
  • Governor - Sir William Macgregor, Governor of Newfoundland (1909-1913)
  • Prime Minister - Sir Robert Bond, Prime Minister of Newfoundland (1900-1909)
• Guatemala - Manuel Estrada Cabrera, President of Guatemala (1898-1920)
• Haiti - Pierre Nord Alexis, President of Haiti (1902-1908)
• México: Porfirio Díaz, President of Mexico (1884 - 1911)
• Nicaragua - José Santos Zelaya, President of Nicaragua (1893-1909)
• Panama - Manuel Amador Guerrero, President of Panama (1904-1908)
• United States - Theodore Roosevelt, President of the United States (1901-1909)

South America

• Argentina: José Figueroa Alcorta, President of Argentina (1906–1910)
• Bolivia: Ismael Montes, President of Bolivia (1904–1909)
• Brazil: Afonso Augusto Moreira Pena, President of Brazil (1906–1909)
• Chile: Pedro Montt Montt, President of Chile (1906–1910)
• Colombia: Rafael Reyes, President of Colombia (1904–1909)
• Ecuador: Eloy Alfaro, President of Ecuador (1906–1911)
• Paraguay: Benigno Ferreira, Provisional President of Paraguay (1906–1908)
• Peru: José Pardo y Barreda, President of Peru (1904–1908)
• Uruguay -
  1. José Batlle y Ordóñez, President of Uruguay (1903-1907)
  2. Claudio Wílliman, President of Uruguay (1907-1911)
• Venezuela: Cipriano Castro, President of Venezuela (1899–1908)