1929 state leaders - Events of 1930 - 1931 state leaders - State leaders by year

Africa

• Ethiopia -
  1. Zauditu, Emperor of Ethiopia (1916-1930)
  2. Haile Selassie, Emperor of Ethiopia (1930-1936)
• Liberia -
  1. Charles D.B. King, President of Liberia (1920-1930)
  2. Edwin Barclay, President of Liberia (1930-1944)
• 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 - Mohammad Nadir Shah , King of Afghanistan (1929-1933)
  • Prime Minister - Sardar Mohammad Hashim Khan, Prime Minister of Afghanistan (1929-1946)
• Brunei - Ahmad Tajuddin, Sultan of Brunei (1924–1950)
• Republic of China
  • President - Chiang Kai-Shek, Chairman of the National Government (1928-1932)
  • Premier -
    1. Tan Yankai , President of the Executive Yuan (1928-1930)
    2. T. V. Soong, President of the Executive Yuan (1930)
    3. Chiang Kai-shek, President of the Executive Yuan (1930-1931)
• Japan
  • Monarch - Showa Emperor, Emperor of Japan (1926-1989)
  • Prime Minister - Osachi Hamaguchi, Prime Minister of Japan (1929-1931)
• 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 -
    1. John Baird, 1st Baron of Stonehaven, Governor-General of Australia (1925-1931)
    2. Arthur Herbert Tennyson Somers-Cocks, 6th Baron of Somers, (acting) Governor-General of Australia (1930-1931)
  • Prime Minister - James Scullin, Prime Minister of Australia (1929-1932)

Europe

• Albania
  • Monarch - Zog I, King of Albania (1928-1939)
  • Prime Minister -
    1. Koço Kota , Prime Minister of Albania (1928-1930)
    2. Pandeli Evangjeli , Prime Minister of Albania (1930-1935)
• Austria
  • President - Wilhelm Miklas , President of Austria (1928-1938)
  • Chancellor -
    1. Johann Schober , Chancellor of Austria (1929-1930)
    2. Carl Vaugoin , Chancellor of Austria (1930)
    3. Otto Ender, Chancellor of Austria (1930-1931)
• Belgium
  • Monarch - Albert I, King of the Belgians (1909-1934)
  • Prime Minister - Henri Jaspar , Prime Minister of Belgium (1926-1931)
• Bulgaria
  • Monarch - Boris III, Tsar of Bulgaria (1918-1943)
  • Prime Minister - Andrey Lyapchev , Prime Minister of Bulgaria (1926-1931)
• Czechoslovakia
  • President - Tomás Masaryk, President of Czechoslovakia (1918-1935)
  • Prime Minister - Frantisek Udrzal, Prime Minister of Czechoslovakia (1929-1932)
• Denmark
  • Monarch - Christian X, King of Denmark (1912-1947)
  • Prime Minister - Thorvald Stauning, Prime Minister of Denmark (1929-1942)
• Estonia - Otto Strandman, State Elder of Estonia (1929-1931)
• Finland
  • President - Lauri Kristian Relander, President of Finland (1925-1931)
  • Prime Minister -
    1. Kyösti Kallio, Prime Minister of Finland (1929-1930)
    2. Pehr Evind Svinhufvud, Prime Minister of Finland (1930-1931)
• France -
  • President - Gaston Doumergue, President of France (1924-1931)
  • Prime Minister -
    1. André Tardieu, President of the Council (1929-1930)
    2. Camille Chautemps, President of the Council (1930)
    3. André Tardieu, President of the Council (1930)
    4. Théodore Steeg, President of the Council (1930-1931)
• Germany -
  • President - Paul von Hindenburg, Reich President (1925-1934)
  • Chancellor -
    1. Hermann Müller, Chancellor of Germany (1928-1930)
    2. Heinrich Brüning, Chancellor of Germany (1930-1932)
• Greece
  • President - Alexandros Zaimis, President of Greece (1929-1935)
  • Prime Minister - Eleftherios Venizelos, Prime Minister of Greece (1928-1932)
• Hungary
  • Regent - Miklós Horthy, Regent of Hungary (1920-1944)
  • Prime Minister - István Bethlen, Prime Minister of Hungary (1921-1931)
• Irish Free State -
  • Monarch - George V, King of Ireland (1910-1936)
  • Governor-General - James McNeill, Governor-General of the Irish Free State (1928-1932)
  • 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. Gustavs Zemgals, President of Latvia (1927-1930)
    2. Alberts Kviesis, President of Latvia (1930-1936)
  • Prime Minister - Hugo Celmiņš , Prime Minister of Latvia (1928-1931)
• Liechtenstein
  • Monarch - Franz I , Prince of Liechtenstein (1929-1938)
  • Head of Government - Franz Josef Hoop , Head of Government of Liechtenstein (1928-1945)
• Lithuania
  • President - Antanas Smetona, President of Lithuania (1926-1940)
  • Prime Minister - Juozas Tubelis , Prime Minister of Lithuania (1929-1938)
• Luxembourg
  • Monarch - Charlotte, Grand Duchess of Luxembourg (1919-1964)
  • Prime Minister - Joseph Bech , Prime Minister of Luxembourg (1926-1937)
• Monaco
  • Monarch - Louis II, Prince of Monaco (1922-1949)
  • Minister of State - Maurice Piette , Minister of State of Monaco (1923-1932)
• The Netherlands
  • Monarch - Wilhelmina, Queen of the Netherlands (1890-1948)
  • Prime Minister - Charles Ruijs de Beerenbrouck , Prime Minister of the Netherlands (1929-1933)
• Norway
  • Monarch - Haakon VII, King of Norway (1905-1957)
  • Prime Minister - Johan Ludwig Mowinckel, Prime Minister of Norway (1928-1931)
• Poland
  • President - Ignacy Moscicki, President of Poland (1926-1939)
  • Prime Minister -
    1. Kazimierz Bartel, Prime Minister of Poland (1929-1930)
    2. Józef Pilsudski, Prime Minister of Poland (1930)
    3. Walery Slawek, Prime Minister of Poland (1930-1931)
• Portugal
  • President - António Óscar de Fragoso Carmona , President of Portugal (1926-1951)
  • Prime Minister -
    1. Artur Ivens Ferraz , Prime Minister of Portugal (1929-1930)
    2. Domingos Augusto Alves da Costa e Oliveira , Prime Minister of Portugal (1930-1932)
• Romania
  • Monarch -
    1. Michael I, King of Romania (1927-1930)
    2. Carol II, King of Romania (1930-1940)
  • Prime Minister -
    1. Iuliu Maniu, Prime Minister of Romania (1928-1930)
    2. Gheorghe Mironescu, Prime Minister of Romania (1930)
    3. Iuliu Maniu, Prime Minister of Romania (1930)
    4. Gheorghe Mironescu, Prime Minister of Romania (1930-1931)
• Spain
  • Monarch - Alfonso XIII, King of Spain (1886-1931)
  • Prime Minister -
    1. Miguel Primo de Rivera, Prime Minister of Spain (1923-1930)
    2. Conde de Xauen , Prime Minister of Spain (1930-1931)
• Sweden
  • Monarch - Gustaf V, King of Sweden (1907-1950)
  • Prime Minister -
    1. Salomon Arvid Achates Lindman , Prime Minister of Sweden (1928-1930)
    2. Carl Gustaf Ekman, Prime Minister of Sweden (1930-1932)
• Switzerland
  • President - Jean-Marie Musy, President of the Swiss Confederation (1930)
• Turkey
  • President - Mustafa Kemal, President of Turkey (1923-1938)
  • Prime Minister - Mustafa Ismet, Prime Minister of Turkey (1925-1937)
• Union of Soviet Socialist Republics
  • Communist Party Leader - Joseph Stalin, General Secretary of the Communist Party of the Soviet Union (1922-1953)
  • Head of State - Mikhail Kalinin - Chairman of the Central Executive Committee (1922-1938)
  • Premier -
    1. Aleksey Rykov , Chairman of the Council of People's Comissars (1924-1930)
    2. Vyacheslav Molotov, Chairman of the Council of People's Commisars (1930-1941)
• United Kingdom
  • Monarch - George V, King of the United Kingdom (1910-1936)
  • Prime Minister - Ramsay MacDonald, Prime Minister of the United Kingdom (1929-1935)
• Vatican City
  • Pope - Pius XI, Bishop of Rome (1929-1939)
  • Secretary of State -
    1. Pietro Cardinal Gasparri, Cardinal Secretary of State (1929-1930)
    2. Eugenio Cardinal Pacelli, Cardinal Secretary of State (1930-1939)
• Yugoslavia
  • Monarch - Alexander I, King of Yugoslavia (1921-1934)
  • Prime Minister - Petar Zivkovic, Prime Minister of Yugoslavia (1929-1932)

North America and the Caribbean

• Canada
  • Monarch - George V, King of Canada (1910-1936)
  • Governor-General - The Viscount Willingdon of Ratton, Governor-General of Canada (1926-1931)
  • Prime Minister -
    1. William Lyon Mackenzie King, Prime Minister of Canada (1926-1930)
    2. R.B. Bennett, Prime Minister of Canada (1930-1935)
• Newfoundland
  • Monarch - King George V, King of Newfoundland {1910-1936}
  • Governor - John Middleton, Governor of Newfoundland (1928-1932)
  • Prime Minister - Richard Squires, Prime Minister of Newfoundland (1928-1932)
• United States - Herbert Hoover, President of the United States (1929-1933)

South America

• Brazil -
  1. Washington Luís, President of Brazil (1926-1930)
  2. Augusto Tasso Fragoso, President of Brazil (1930)
  3. Getúlio Dornelles Vargas, President of Brazil (1930-1945)
• Paraguay - José Patricio Gugguiari , President of Paraguay (1928-1931)
• Peru -
  1. Augusto B. Leguía y Salcedo, President of Peru (1919-1930)
  2. Luis Miguel Sánchez Cerro , President of Peru (1930-1931)