1926 state leaders - Events of 1927 - 1928 state leaders - State leaders by year

Africa

• Ethiopia - Zauditu, Empress of Ethiopia (1916-1930)
• Liberia - Charles D.B. King, President of Liberia (1920-1930)
• South Africa
  • Monarch - King George V, King of South Africa (1910-1936)
  • Governor-General - Earl of Athlone, Governor-General of South Africa (1924-1931)
  • Prime Minister - Barry Herzog, Prime Minister of South Africa (1924-1939)
• Zanzibar - Sayyid Khalifa bin Harub Al-Busaid, Sultan of Zanzibar (1911-1960)

Asia

• Afghanistan
  • Monarch - Amanullah Shah, King of Afghanistan (1926-1929)
  • Prime Minister - Sardar Shir Ahmad , Prime Minister of Afghanistan (1927-1929)
• Brunei - Ahmad Tajuddin, Sultan of Brunei (1924–1950)
• Republic of China
  • Beijing Government
    • President - Chang Tso-Lin, Generalissimo of the Military Government (1926-1928)
    • Premier -
      1. Gu Weijun , Acting Premier of the Republic of China (1926-1927)
      2. Pan Fu , Premier of the Republic of China (1927-1928)
  • Nanjing Government -
    1. Chiang Kai-shek, Chairman of the Standing Committee of the National Government (1927)
    2. Tan Yankai , Chairman of the Standing Committee of the National Government (1927)
  • Wuhan Government -
    1. Wang Jingwei, Chairman of the Standing Committee of the National Government (1927)
    2. Tan Yankai , Chairman of the Standing Committee of the National Government (1927-1928)
• Japan
  • Monarch - Showa Emperor, Emperor of Japan (1926-1989)
  • Prime Minister -
    1. Reijiro Wakatsuki, Prime Minister of Japan (1926-1927)
    2. Giichi Tanaka, Prime Minister of Japan (1927-1929)
• 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 - Lord Stonehaven, Governor-General of Australia (1925-1931)
  • Prime Minister - Stanley Bruce, Prime Minister of Australia (1923-1929)

Europe

• Albania -
  • President - Amet Zogu, President of Albania (1925-1928)
• Belgium
  • Monarch - Albert I, King of Belgium (1909-1934)
• Denmark
  • Monarch - Christian X, King of Denmark (1912-1947)
  • Prime Minister - Thomas Madsen-Mygdal, Prime Minister of Denmark (1926-1929)
• Finland -
  • President - Lauri Kristian Relander, President of Finland (1925-1931)
  • Prime Minister -
    1. Väinö Tanner, Prime Minister of Finland (1926-1927)
    2. Juho Sunila , Prime Minister of Finland (1927-1928)
• France -
  • President - Gaston Doumergue, President of France (1924-1931)
  • Prime Minister - Raymond Poincaré, President of the Council (1926-1929)
• Germany -
  • President - Paul von Hindenburg, Reich President (1925-1934)
  • Chancellor - Wilhelm Marx, Chancellor of Germany (1926-1928)
• Irish Free State -
  • Monarch - George V, King of Ireland (1910-1936)
  • Governor-General - Timothy Michael Healy, Governor-General of the Irish Free State (1922-1928)
  • Prime Minister - W.T. Cosgrave, President of the Executive Council of the Irish Free State (1922-1932)
• Italy -
  • Monarch - Vittorio Emanuele III, King of Italy (1900-1946)
  • Prime Minister - Benito Mussolini, Prime Minister of Italy (1922-1943)
• Latvia
  • President -
    1. Jānis Čakste, President of Latvia (1922-1927)
    2. Gustavs Zemgals, President of Latvia (1927-1930)
  • Prime Minister - Marģers Skujenieks , Prime Minister of Latvia (1926-1928)
• Netherlands
  • Monarch - Wilhelmina, Queen of the Netherlands (1890-1948).
• Norway
  • Monarch - Haakon VII, King of Norway (1905-1957).
• Romania -
  • Monarch -
    1. Ferdinand, King of Romania (1914-1927)
    2. Michael, King of Romania (1927-1930)
• Soviet Union - Mikhail Kalinin, President of the Soviet Union (1922-1946).
• Sweden
  • Monarch - Gustav V, King of Sweden (1907-1950).
• United Kingdom -
  • Monarch - George V, King of the United Kingdom (1910-1936)
  • Prime Minister - Stanley Baldwin, Prime Minister of the United Kingdom (1924-1929)

Middle East

• Saudi Arabia
  • Monarch - Ibn Saud, King of Saudi Arabia (1902-1953)

North America and the Caribbean

• Canada
  • Monarch - George V, King of Canada (1910-1936)
  • Governor-General - Viscount Willingdon of Ratton, Governor-General of Canada (1926-1931)
  • Prime Minister - William Lyon Mackenzie King, Prime Minister of Canada (1926-1930)
• Mexico - Plutarco Elías Calles, President of Mexico (1924-1928)
• Newfoundland
  • Monarch - George V, King of Newfoundland {1910-1936}
  • Governor - William L. Allardyce, Governor of Newfoundland (1922-1928)
  • Prime Minister - Walter Stanley Monroe, Prime Minister of Newfoundland (1924-1928)
• United States - Calvin Coolidge, President of the United States (1923-1929)

South America

• Argentina - Marcello T. de Alvear , President of Argentina (1922-1928)
• Bolivia - Hernando Siles , President of Bolivia (1926-1930)
• Brazil - Washington Luís, President of Brazil (1926-1930)
• Chile - Emiliano Figueroa Larraín , President of Chile (1925-1927)
• Colombia - Miguel Abadía Méndez , President of Colombia (1926-1930)
• Paraguay - Eligio Ayala , President of Paraguay (1924-1928)
• Peru - Augusto B. Leguía y Salcedo, President of Peru (1919-1930)
• Venezuela - Juan Vicente Gómez, President of Venezuela (1915-1929)