World leaders in 1917

Everyone who held a state’s top posts at some point in 1917, in the order they held them. Names are from Wikipedia’s list of state leaders and appear only where the person’s Wikidata record agrees on the post and the years. What happened in 1917 →

Major powers in 1917

United StatesUnited States history

United KingdomUnited Kingdom history

Prime minister
David Lloyd George

Russian EmpireRussia history

Russian RepublicRussia history

Minister-Chairman
Georgy Lvov, then Alexander Kerensky

RussiaRussia history

Republic of China (1916–1949)China history

President
Feng Guozhang

French Third RepublicFrance history

President of the Council of ministers
Aristide Briand, then Alexandre Ribot, then Paul Painlevé, then Georges Clemenceau

German EmpireGermany history

Emperor
Wilhelm II

Empire of JapanJapan history

Emperor
Taishō
Prime minister
Terauchi Masatake

Africa

Beylik of TunisTunisia history

Grand vizier
Taïeb Djellouli

Ethiopian Empire

Empress
Zewditu I

Kingdom of Rwanda

LiberiaLiberia history

Sultanate of EgyptEgypt history

Prime minister
Hussein Roshdy Pasha

Sultanate of Morocco: Alaouite dynasty

Sultan
Yusef

Sultanate of Zanzibar

Union of South AfricaSouth Africa history

Americas

Argentine RepublicArgentina history

BoliviaBolivia history

CanadaCanada history

Prime minister
Robert Borden

Dominion of NewfoundlandCanada history

Prime minister
Edward Morris

EcuadorEcuador history

El SalvadorEl Salvador history

First Brazilian RepublicBrazil history

First Costa Rican RepublicCosta Rica history

GuatemalaGuatemala history

HondurasHonduras history

MexicoMexico history

NicaraguaNicaragua history

Parliamentary Era ChileChile history

Republic of ColombiaColombia history

Republic of CubaCuba history

Republic of Haiti (1859–1957)Haiti history

Republic of ParaguayParaguay history

President
Manuel Franco

Republic of PeruPeru history

Constitutional President
José Pardo y Barreda

United StatesUnited States history

UruguayUruguay history

Asia

Bogd Khanate of MongoliaMongolia history

Khagan
Bogd Khan

Emirate of Abu DhabiTurkey history

Emirate of Afghanistan: Barakzai dynastyAfghanistan history

Emirate of AjmanTurkey history

Emirate of BukharaUzbekistan history

Emirate of DubaiTurkey history

Emirate of FujairahTurkey history

Emirate of SharjahTurkey history

Empire of JapanJapan history

Emperor
Taishō
Prime minister
Terauchi Masatake

French Protectorate of Luang PhrabangLaos history

King of Luang Phrabang
Sisavang Vong

Hakims of BahrainBahrain history

Kedah SultanateMalaysia history

Khanate of KhivaUzbekistan history

Kingdom of HejazSaudi Arabia history

Negeri SembilanMalaysia history

Yamtuan
Muhammad

Nguyễn dynastyVietnam history

Ottoman (Turkish) EmpireTurkey history

Sultan
Mehmed V

PakualamanIndonesia history

Perak Sultanate: Siak dynastyMalaysia history

Protectorate of BruneiBrunei history

QatarQatar history

Republic of China (1916–1949)China history

President
Feng Guozhang

Saudi ArabiaSaudi Arabia history

Selangor SultanateMalaysia history

Sultan
Sulaiman

Sheikhdom of KuwaitKuwait history

Sheikh
Jaber II, then Salim I

Siam/Thailand: Rattanakosin KingdomThailand history

Sublime State of Persia: Qajar dynastyIran history

Sultanate of Siak Sri IndrapuraIndonesia history

Sultanate/ State of Muscat and OmanOman history

Sultan
Taimur

Surakarta SunanateIndonesia history

Terengganu SultanateMalaysia history

Umm Al QuwainTurkey history

Yogyakarta SultanateIndonesia history

Europe

Andorra

Episcopal Co-Prince
Juan Benlloch i Vivó
French Co-Prince
Raymond Poincaré

Austria-Hungary: Austrian Empire and Kingdom of HungaryAustria history

Ministers-President
Heinrich Clam-Martinic

BelgiumBelgium history

Bourbon Restoration of SpainSpain history

Duchy of AnhaltGermany history

Duchy of BrunswickGermany history

Fascist Italy (1922–1943)Italy history

First Portuguese RepublicPortugal history

French Third RepublicFrance history

President of the Council of ministers
Aristide Briand, then Alexandre Ribot, then Paul Painlevé, then Georges Clemenceau

German EmpireGermany history

Emperor
Wilhelm II

Grand Duchy of FinlandFinland history

Grand Prince
Nicholas II

Grand Duchy of LuxembourgLuxembourg history

Grand Duchess
Marie-Adélaïde
Prime minister
Victor Thorn, then Léon Kauffman

Kingdom of BavariaGermany history

Kingdom of Bohemia

Kingdom of BulgariaBulgaria history

Prime minister
Vasil Radoslavov

Kingdom of Croatia-Slavonia

Kingdom of DenmarkDenmark history

Council president
Carl Theodor Zahle

Kingdom of Galicia and LodomeriaUkraine history

King
Karl I

Kingdom of GreeceGreece history

Kingdom of IcelandIceland history

Prime minister
Jón Magnússon

Kingdom of ItalyItaly history

Kingdom of Montenegro

President in-exile
Andrija Radović, then Milo Matanović, then Evgenije Popović

Kingdom of NorwayNorway history

Prime minister
Gunnar Knudsen

Kingdom of RomaniaRomania history

Prime minister
Ion I. C. Brătianu

Kingdom of SwedenSweden history

Prime minister
Hjalmar Hammarskjöld, then Carl Swartz, then Nils Edén

Kingdom of WürttembergGermany history

Liechtenstein

Prince
Johann II

Moldavian Democratic RepublicMoldova history

President
Ion Inculeț

Monaco

Prince
Albert I
Minister of state
Émile Flach

NetherlandsNetherlands history

Principality of AlbaniaAlbania history

Prince in exile
Wilhelm

Principality of Waldeck and PyrmontGermany history

Prince
Friedrich

Russian EmpireRussia history

Russian RepublicRussia history

Minister-Chairman
Georgy Lvov, then Alexander Kerensky

Russian Soviet Federative Socialist Republic, Sovereign state (1917–1922)Russia history

Saxe-Coburg and GothaGermany history

Saxe-MeiningenGermany history

SwitzerlandSwitzerland history

President of the Confederation
Edmund Schulthess

Ukrainian People's RepublicUkraine history

Prime minister
Volodymyr Vynnychenko

United Kingdom of Great Britain and IrelandUnited Kingdom history

Prime minister
David Lloyd George

Oceania

AustraliaAustralia history

Prime minister
Billy Hughes

Dominion of New ZealandNew Zealand history

Prime minister
William Massey

Kings of Uvea (Wallis)

Tuʻi Kanokupolu of TongaTonga history