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)

Europe

• 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)
• Germany -
  • Monarch - Wilhelm II, German Emperor (1888-1918)
  • Chancellor - Bernhard von Bülow, Chancellor of Germany (1900-1909)
• Italy
  • Monarch - Vittorio Emanuele III, King of Italy (1900-1946)
  • Prime Minister - Giovanni Giolitti, Prime Minister of Italy (1906-1909)
• 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 Canada (1901-1910)
  • Governor-General - Earl Grey, Governor-General of Canada (1904-1911)
  • Prime Minister - Wilfrid Laurier, Prime Minister of Canada (1896-1911)
• Newfoundland
  • Monarch - Edward VII, King of Canada (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)
• Mexico - 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

• Bolivia - Ismael Montes, President of Bolivia (1904-1909)
• Brazil - Afonso Augusto Moreira Pena, President of Brazil (1906-1909)
• Colombia - Rafael Reyes , President of Colombia (1904-1909)
• Paraguay - Benigno Ferreira , Provisional President of Paraguay (1906-1908)
• Peru - José Pardo y Barreda , President of Peru (1904-1908)
• Venezuela - Cipriano Castro, President of Venezuela (1899-1909)