1916 state leaders - Events of 1917 - 1918 state leaders - State leaders by year

Africa

• Ethiopia - Zauditu, Emperor of Ethiopia (1916-1930)
• Liberia - Daniel E. Howard, President of Liberia (1912-1920)
• South Africa
  • Monarch - King George V, King of South Africa (1910-1936)
  • Governor-General - Viscount Buxton, Governor-General of South Africa (1914-1920)
  • Prime Minister - Louis Botha, Prime Minister of South Africa (1910-1919)
• Zanzibar - Sayyid Khalifa bin Harub Al-Busaid, Sultan of Zanzibar (1911-1960)

Asia

• Afghanistan - Habibullah Khan, King of Afghanistan (1901-1919)
• Brunei - Muhammad Jamalul Alam II, Sultan of Brunei (1906–1924)
• China
  • President -
    1. Li Yüan-hung, President of the Republic of China (1916-1917)
    2. Feng Kuo-Chang, President of the Republic of China (1917-1918)
  • Premier -
    1. Duan Qirui, Premier of the Republic of China (1916-1917)
    2. Wu Tingfang , Acting Premier of the Republic of China (1917)
    3. Li Jingxi , Premier of the Republic of China (1917)
    4. Xu Shichang, Premier of the Republic of China (1917)
    5. Jiang Zhaozong , Acting Premier of the Republic of China (1917)
    6. Li Jingxi , Premier of the Republic of China (1917)
    7. Duan Qirui, Premier of the Republic of China (1917)
    8. Weng Shizhen , Acting Premier of the Republic of China (1917-1918)
• Japan
  • Monarch - Taisho Emperor, Emperor of Japan (1912-1926)
  • Prime Minister - Terauchi Masatake, Prime Minister of Japan (1916-1918)
• Oman - Taimur Bin Faisal, Sultan of Oman (1913-1932)

Australia and Oceania

• Australia -
  • Monarch - George V, King of the United Kingdom (1910-1936)
  • Governor-General - Ronald Munro-Ferguson, Governor-General of Australia (1914-1920)
  • Prime Minister - Billy Hughes, Prime Minister of Australia (1915-1923)

Europe

• Albania - National government collapsed (1916-1918)
• Denmark
  • Monarch - Christian X, King of Denmark (1912-1947)
  • Prime Minister - Carl Theodor Zahle, Prime Minister of Denmark (1913-1920)
• Finland - (newly independent)
  • Prime Minister - Pehr Evind Svinhufvud, Prime Minister of Finland (1917-1918)
• France -
  • President - Raymond Poincaré, President of France (1913-1920)
  • Prime Minister -
    1. Aristide Briand, President of the Council (1915-1917)
    2. Alexandre Ribot, President of the Council (1917)
    3. Paul Painlevé, President of the Council (1917)
    4. Georges Clemenceau, President of the Council (1917-1920)
• Germany -
  • Monarch - Wilhelm II, German Emperor (1888-1918)
  • Chancellor -
    1. Theobald von Bethmann-Hollweg, Chancellor of Germany (1909-1917)
    2. Georg Michaelis, Chancellor of Germany (1917)
    3. Georg von Hertling, Chancellor of Germany (1917-1918)
• Italy
  • Monarch - Vittorio Emanuele III, King of Italy (1900-1946)
  • Prime Minister -
    1. Paolo Boselli, Prime Minister of Italy (1916-1917)
    2. Vittorio Orlando, Prime Minister of Italy (1917-1919)
• Romania - King Ferdinand (1914-1927)
• United Kingdom -
  • Monarch - George V, King of the United Kingdom (1910-1936)
  • Prime Minister - David Lloyd George, Prime Minister of the United Kingdom (1916-1922)

North America and the Caribbean

• Canada
  • Monarch - King George V, King of Canada (1910-1936)
  • Governor-General - Duke of Devonshire, Governor-General of Canada (1916-1921)
  • Prime Minister - Sir Robert Borden, Prime Minister of Canada (1911-1920)
• Newfoundland
  • Monarch - King George V, King of Newfoundland {1910-1936}
  • Governor -
    1. Walter Edward Davidson , Governor of Newfoundland (1913-1917)
    2. Charles A. Harris , Governor of Newfoundland (1917-1922)
  • Prime Minister - Edward Patrick Morris, Prime Minister of Newfoundland (1909-1917)
• United States - Woodrow Wilson, President of the United States (1913-1921)

South America

• Brazil - Venceslau Brás Pereira Gomes, President of Brazil (1914-1918)
• Paraguay - Manuel Franco , President of Paraguay (1916-1919)
• Peru - José Pardo y Barreda , President of Peru (1915-1919)