World leaders in 1915

Everyone who held a state’s top posts at some point in 1915, 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 1915 →

Major powers in 1915

United StatesUnited States history

President: Woodrow Wilson

United KingdomUnited Kingdom history

King: George V
Prime minister: H. H. Asquith

Russian EmpireRussia history

Emperor: Nicholas II

Republic of China (1912–1915)China history

President: Yuan Shikai
Premier: Secretary of State: Xu Shichang

Empire of China (1915–1916)China history

Emperor: Yuan Shikai
Premier: Lu Zhengxiang

French Third RepublicFrance history

President: Raymond Poincaré
President of the Council of ministers: René Viviani, then Aristide Briand

German EmpireGermany history

Emperor: Wilhelm II
Chancellor: Theobald von Bethmann Hollweg

Empire of JapanJapan history

Emperor: Taishō
Prime minister: Ōkuma Shigenobu

Africa

Beylik of TunisTunisia history

Bey: Muhammad V an-Nasir
Grand vizier: Taïeb Djellouli

Ethiopian Empire

Emperor: Iyasu V

Kingdom of Rwanda

King: Yuhi V Musinga

LiberiaLiberia history

President: Daniel Edward Howard

Sultanate of EgyptEgypt history

Prime minister: Hussein Roshdy Pasha

Sultanate of Morocco: Alaouite dynasty

Sultan: Yusef

Sultanate of Zanzibar

Sultan: Khalifa II

Union of South AfricaSouth Africa history

King: George V

Americas

Argentine RepublicArgentina history

President: Victorino de la Plaza

BoliviaBolivia history

President: Ismael Montes

CanadaCanada history

Prime minister: Robert Borden

Dominion of NewfoundlandCanada history

King: George V
Prime minister: Edward Morris

EcuadorEcuador history

President: Leónidas Plaza

El SalvadorEl Salvador history

Provisional President: Alfonso Quiñónez Molina
President: Carlos Meléndez Ramirez

First Brazilian RepublicBrazil history

President: Venceslau Brás

First Costa Rican RepublicCosta Rica history

President: Alfredo González Flores

GuatemalaGuatemala history

President: Manuel Estrada Cabrera

HondurasHonduras history

President: Francisco Bertrand

MexicoMexico history

President: Eulalio Gutiérrez

NicaraguaNicaragua history

President: Adolfo Díaz

Parliamentary Era ChileChile history

President: Ramón Barros Luco, then Juan Luis Sanfuentes

Republic of ColombiaColombia history

President: José Vicente Concha Ferreira

Republic of CubaCuba history

President: Mario García Menocal

Republic of Haiti (1859–1957)Haiti history

President: Joseph Davilmar Théodore, then Vilbrun Guillaume Sam, then Philippe Sudré Dartiguenave

Republic of ParaguayParaguay history

President: Eduardo Schaerer

Republic of PeruPeru history

Interim President: Óscar R. Benavides
Constitutional President: José Pardo y Barreda

Second Dominican RepublicDominican Republic history

President: Juan Isidro Jimenes Pereyra

United StatesUnited States history

President: Woodrow Wilson

UruguayUruguay history

President: José Batlle y Ordóñez, then Feliciano Viera

Asia

Bogd Khanate of MongoliaMongolia history

Khagan: Bogd Khan

Emirate of Abu DhabiTurkey history

ruler: Hamdan bin Zayed Al Nahyan

Emirate of Afghanistan: Barakzai dynastyAfghanistan history

Emir: Habibullah Khan

Emirate of AjmanTurkey history

ruler: Humaid bin Abdulaziz Al Nuaimi

Emirate of BukharaUzbekistan history

Amir: Muhammad Alim Khan bin Abdul-Ahad

Emirate of DubaiTurkey history

ruler: Saeed bin Maktoum bin Hasher Al Maktoum

Emirate of FujairahTurkey history

ruler: Hamad bin Abdullah Al Sharqi

Emirate of SharjahTurkey history

ruler: Khalid bin Ahmad Al Qasimi

Empire of China (1915–1916)China history

Emperor: Yuan Shikai
Premier: Lu Zhengxiang

Empire of JapanJapan history

Emperor: Taishō
Prime minister: Ōkuma Shigenobu

French Protectorate of Luang PhrabangLaos history

King of Luang Phrabang: Sisavang Vong

Hakims of BahrainBahrain history

Hakim: Isa ibn Ali Al Khalifa

Kedah SultanateMalaysia history

Sultan: Abdul Hamid Halim Shah ll

Khanate of KhivaUzbekistan history

Khan: Isfandiyar Jurji Bahadur

Negeri SembilanMalaysia history

Yamtuan: Muhammad

Nguyễn dynastyVietnam history

Emperor: Duy Tân

Ottoman (Turkish) EmpireTurkey history

Sultan: Mehmed V
Grand Vizier: Said Halim Pasha

PakualamanIndonesia history

Sultan: Pakualam VII

Perak Sultanate: Siak dynastyMalaysia history

Sultan: Idris Murshidul Azzam Shah

Protectorate of BruneiBrunei history

Sultan: Muhammad Jamalul Alam II

QatarQatar history

Emir: Abdullah bin Jassim Al Thani

Republic of China (1912–1915)China history

President: Yuan Shikai
Premier: Secretary of State: Xu Shichang

Saudi ArabiaSaudi Arabia history

Emir: Ibn Saud

Selangor SultanateMalaysia history

Sultan: Sulaiman

Sheikhdom of KuwaitKuwait history

Sheikh: Mubarak I, then Jaber II

Siam/Thailand: Rattanakosin KingdomThailand history

King: Vajiravudh

Sublime State of Persia: Qajar dynastyIran history

Shah: Ahmad Shah Qajar

Sultanate of Siak Sri IndrapuraIndonesia history

Sultan: Syarif Kasim II

Sultanate/ State of Muscat and OmanOman history

Sultan: Taimur

Surakarta SunanateIndonesia history

Sultan: Pakubuwono X

Terengganu SultanateMalaysia history

Sultan: Zainal Abidin III

Umm Al QuwainTurkey history

ruler: Rashid bin Ahmad Al Mualla

Yogyakarta SultanateIndonesia history

Sultan: Hamengkubuwono VII

Europe

Andorra

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

Austria-Hungary: Austrian Empire and Kingdom of HungaryAustria history

Emperor: Franz Joseph I
Prime Minister: István Tisza

BelgiumBelgium history

King: Albert I
Prime minister: Charles de Broqueville

Bourbon Restoration of SpainSpain history

King: Alfonso XIII
Prime minister: Eduardo Dato, then Álvaro de Figueroa

Duchy of AnhaltGermany history

Duke: Frederick II

Duchy of BrunswickGermany history

Duke: Ernest Augustus

Fascist Italy (1922–1943)Italy history

King: Victor Emmanuel III

First Portuguese RepublicPortugal history

President: Manuel de Arriaga, then Teófilo Braga, then Bernardino Machado
President of the Ministry: Joaquim Pimenta de Castro

French Third RepublicFrance history

President: Raymond Poincaré
President of the Council of ministers: René Viviani, then Aristide Briand

German EmpireGermany history

Emperor: Wilhelm II
Chancellor: Theobald von Bethmann Hollweg

Grand Duchy of FinlandFinland history

Grand Prince: Nicholas II

Grand Duchy of LuxembourgLuxembourg history

Grand Duchess: Marie-Adélaïde
Prime minister: Paul Eyschen, then Mathias Mongenast, then Hubert Loutsch

Kingdom of BavariaGermany history

King: Ludwig III

Kingdom of Bohemia

King: Franz Joseph I

Kingdom of BulgariaBulgaria history

Tsar: Ferdinand I
Prime minister: Vasil Radoslavov

Kingdom of Croatia-Slavonia

King: Franz Joseph
Ban: Ivan Skerlecz

Kingdom of DenmarkDenmark history

King: Christian X
Council president: Carl Theodor Zahle

Kingdom of Galicia and LodomeriaUkraine history

King: Francis Joseph I

Kingdom of GreeceGreece history

King: Constantine I
Prime minister: Eleftherios Venizelos, then Dimitrios Gounaris, then Stefanos Skouloudis

Kingdom of ItalyItaly history

King: Victor Emmanuel III
Prime minister: Antonio Salandra

Kingdom of Montenegro

President: Janko Vukotić

Kingdom of NorwayNorway history

King: Haakon VII
Prime minister: Gunnar Knudsen

Kingdom of RomaniaRomania history

King: Ferdinand I
Prime minister: Ion I. C. Brătianu

Kingdom of SwedenSweden history

King: Gustaf V
Prime minister: Hjalmar Hammarskjöld

Kingdom of WürttembergGermany history

King: William II

Liechtenstein

Prince: Johann II
Governor: Leopold Freiherr von Imhof

Monaco

Prince: Albert I
Minister of state: Émile Flach

NetherlandsNetherlands history

Queen: Wilhelmina
Prime minister: Pieter Cort van der Linden

Principality of AlbaniaAlbania history

Prince in exile: Wilhelm
Prime minister: Essad Pasha Toptani

Principality of Waldeck and PyrmontGermany history

Prince: Friedrich

Russian EmpireRussia history

Emperor: Nicholas II

San Marino

Captains Regent: Luigi Lonfernini

Saxe-Coburg and GothaGermany history

Duke: Charles Edward

Saxe-MeiningenGermany history

Duke: Bernhard III

SwitzerlandSwitzerland history

President of the Confederation: Giuseppe Motta

United Kingdom of Great Britain and IrelandUnited Kingdom history

King: George V
Prime minister: H. H. Asquith

Oceania

AustraliaAustralia history

King: George V
Prime minister: Andrew Fisher

Dominion of New ZealandNew Zealand history

King: George V
Prime minister: William Massey

Kings of Uvea (Wallis)

King: Soane-Patita Lavuia

Tuʻi Kanokupolu of TongaTonga history

King: George Tupou II