List of state leaders in 1917

Africa

Ethiopia - Zewditu, Empress of Ethiopia (1916–1930)

Liberia - Daniel E. Howard, President of Liberia (1912–1920)

South Africa

Monarch – George V of the United Kingdom (1910–1936)

Governor-General - Viscount Buxton (1914–1920)

Prime Minister - Louis Botha (1910–1919)

Zanzibar - Khalifa bin Harub, Sultan of Zanzibar (1911–1960)

Asia

Emirate of Afghanistan – Habibullah Khan (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 – Taishō (1912–1926)

Prime Minister - Terauchi Masatake (1916–1918)

Mongolia - Bogd Khan, Khan of Mongolia (1911–1924)

Emirate of Nejd and Hasa - Ibn Saud (1903–1921)

Oman - Taimur Bin Faisal, Sultan of Oman (1913–1932)

Australia and Oceania

Australia -

Monarch – George V of the United Kingdom (1910–1936)

Governor-General - Ronald Munro-Ferguson (1914–1920)

Prime Minister - Billy Hughes (1915–1923)

Tonga

Monarch – George Tupou II, King of Tonga (1893–1918)

Prime Minister - T.P.Tu'ivakano (1912–1923)

Europe

Albania - National government collapsed (1916–1918)

Andorra

Co-Princes -

French Co-Prince - Raymond Poincaré, President of France (1913–1920)

Episcopal Co-Prince - Joan Baptista Benlloch i Vivó, Bishop of Urgell (1907–1919)

First Syndic - Pere Font (1915–1917)

Austria-Hungary

Monarch – Karl I, Emperor of Austria and (as Charles IV) King of Hungary (1916–1918)

Minister-President of Austria

1. Count Heinrich von Clam-Martinic (1916–1917)
2. Ernst Seidler von Feuchtenegg (1917–1918)

Minister-President of Hungary

Prime Minister -

1. Count István Tisza (1913–1917)
2. Count Móric Esterházy (1917)
3. Count Sándor Wekerle (1917–1918)

Belgium

Monarch – Albert I, King of the Belgians (1909–1934)

Cabinet Chief - Charles de Broqueville, Cabinet Chief (1911–1918)

Kingdom of Denmark

Monarch – Christian X, King of Denmark (1912–1947)

Prime Minister - Carl Theodor Zahle (1913–1920)

Finland - (newly independent)

Prime Minister - Pehr Evind Svinhufvud (1917–1918)

France -

President of the Republic - Raymond Poincaré (1913–1920)

President of the Council -

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)

German Empire -

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. Count Georg von Hertling, Chancellor of Germany (1917–1918)

Prussia -

Monarch – Wilhelm II, King of Prussia (1888–1918)

Minister President - German Chancellor also served as Minister President of Prussia

Bavaria - Ludwig III, King of Bavaria (1913–1918)

Saxony - Frederick Augustus III, King of Saxony (1904–1918)

Württemberg - William II, King of Württemberg (1891–1918)

Greece

Monarch -

1. Constantine I, King of the Hellenes (1913–1917)
2. Alexander, King of the Hellenes (1917–1920)

Prime Minister -

1. Spyridon Lambros, Prime Minister of Greece (1916–1917)
2. Alexandros Zaimis, Prime Minister of Greece (1917)
3. Eleftherios Venizelos, Prime Minister of Greece (1917–1920)

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)

Luxembourg

Monarch – Marie-Adélaïde, Grand Duchess of Luxembourg (1912–1919)

Prime Minister -

1. Victor Thorn, Prime Minister of Luxembourg (1916-19 June 1917)
2. Léon Kauffmann, Prime Minister of Luxembourg (19 June 1917 – 1918)

Netherlands -

Monarch – Wilhelmina, Queen of the Netherlands (1890–1948)

Chairman of the Dutch Council of Ministers - Pieter Cort van der Linden (1913–1918)

Norway

Monarch – Haakon VII, King of Norway (1905–1957)

Prime Minister - Gunnar Knudsen (1913–1920)

Ottoman Empire

Monarch – Mehmed V, Sultan (1909–1918)

Portugal

President -

1. Bernardino Machado, President of Portugal, (1915–1917)
2. Government presided by Sidónio Pais (1917)
3. Sidónio Pais, Interim President of Portugal (1917–1918)

President of the Ministry -

1. António José de Almeida, President of the Ministry of Portugal (1916–1917)
2. Afonso Costa, President of the Ministry of Portugal (1917)
3. José Maria Norton de Matos, Interim President of the Ministry of Portugal (1917)
4. Afonso Costa, President of the Ministry of Portugal (1917)
5. José Maria Norton de Matos, Interim President of the Ministry of Portugal (1917)
6. Sidónio Pais, President of the Ministry (1917–1918)

Romania - King Ferdinand (1914–1927)

Russia

Monarch – Nicholas II, Emperor of Russia (1894–1917) to March 15.

Georgy Lvov, Prime Minister of the Provisional Government, from March 15 to July 21.

Alexander Kerensky, Prime Minister of the Provisional Government, from July 21 to November 8.

Vladimir Lenin, Chairman of the Council of People's Commissars, from November 8 (1917–1924). See also Russian Civil War (1917–1923).

Kingdom of Spain

Monarch – Alfonso XIII, King of Spain (1886–1931)

President of the Government -

1. Álvaro Figueroa Torres, President of the Government (December 9, 1915 - April 19, 1917)
2. Manuel García Prieto, President of the Government (April 19, 1917 - June 11, 1917)
3. Eduardo Dato Iradier, President of the Government (June 11, 1917 - November 3, 1917)
4. Manuel García Prieto, President of the Government (November 3, 1917 - March 22, 1918)

Sweden

Monarch – Gustaf V, King of Sweden (1907–1950)

Prime Minister -

1. Hjalmar Hammarskjöld, Prime Minister of Sweden (1914–1917)
2. Carl Swartz, Prime Minister of Sweden (1917)
3. Nils Edén, Prime Minister of Sweden (1917–1920)

United Kingdom -

Monarch – George V, King of the United Kingdom (1910–1936)

Prime Minister - David Lloyd George (1916–1922)

North America and the Caribbean

Canada

Monarch – George V of the United Kingdom (1910–1936)

Governor-General - Duke of Devonshire (1916–1921)

Prime Minister - Sir Robert Borden (1911–1920)

Costa Rica -

1. Alfredo González Flores, President of Costa Rica (1914–1917)
2. Federico Tinoco Granados, President of Costa Rica (1917–1919)

Cuba - Mario García Menocal, President of Cuba (1913–1921)

México - Venustiano Carranza, President of Mexico (1914–1920)

Newfoundland

Monarch – George V of the United Kingdom (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 (1909–1917)

United States - Woodrow Wilson, President of the United States (1913–1921)

South America

Argentina - Hipólito Yrigoyen, President of Argentina (1916–1922)

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)

Uruguay - Feliciano Viera, President of Uruguay (1915–1919)

Venezuela - Victorino Márquez Bustillos, provisional President of Venezuela (1914–1922)