List of sovereign states in 1918

Sovereign states by year
List of sovereign states in 1917	Events of 1918	List of sovereign states in 1919

Sovereign states

Political map of the world prior to 1918.

A

Andorra - Principality of Andorra
Argentina - Argentine Republic
Republic of Armenia - (from May 28)
Australia - Commonwealth of Australia
23x15px Asir - Emirate of Asir
Asir, Upper - Emirate of Upper Asir
Austria-Hungary - Austro-Hungarian Empire (to November 12)
Austria - Republic of German Austria (from November 12)
Azerbaijan - Azerbaijan Democratic Republic (from May 28)

B

Belgium - Kingdom of Belgium
Bolivia - Republic of Bolivia
23x15px Brazil - Republic of the United States of Brazil
Bulgaria - Kingdom of Bulgaria

C

Canada - Dominion of Canada
Chile - Republic of Chile
China - Republic of China
Colombia - Republic of Colombia
Costa Rica - Republic of Costa Rica
Cuba - Republic of Cuba
Czechoslovakia - Czecho-Slovak Republic (from 28 October)

D

Denmark - Kingdom of Denmark
Dominican Republic

E

Ecuador - Republic of Ecuador
El Salvador - Republic of El Salvador
Estonia - Republic of Estonia (from February 24)
Ethiopia - Ethiopian Empire

F

France - French Republic

G

Georgia - Democratic Republic of Georgia (from May 26)
Germany
- German Empire (to November 9)
- German Reich (from November 9)
Greece - Kingdom of Greece
Guatemala - Republic of Guatemala

H

Ha'il - Emirate of Ha'il
Haiti - Republic of Haiti
Hejaz - Kingdom of Hejaz
Honduras - Republic of Honduras
Hungary - Hungarian Democratic Republic (from November 16)

I

Italy – Kingdom of Italy

J

Japan - Empire of Japan

L

Latvia (Disputed between two governments)
- Republic of Latvia (from November 18)
- Latvian Socialist Soviet Republic (from December 17)
Liberia - Republic of Liberia
Liechtenstein - Principality of Liechtenstein
Lithuania - Republic of Lithuania (from November 2)

M

Mexico - United Mexican States
Monaco - Principality of Monaco

N

Nejd - Emirate of Nejd
Nepal - Kingdom of Nepal
Newfoundland - Dominion of Newfoundland
New Zealand - Dominion of New Zealand
Netherlands - Kingdom of the Netherlands
Nicaragua - Republic of Nicaragua
Norway - Kingdom of Norway

P

Panama - Republic of Panama
Paraguay - Republic of Paraguay
Persia - Persian Empire
Peru - Peruvian Republic
Poland - Republic of Poland (from November 11)
Portugal - Portuguese Republic

R

Romania - Kingdom of Romania
Russia
- Russian Soviet Republic (to January 28)
- Russian Socialist Federative Soviet Republic (from January 28)

For the Russian Democratic Federative Republic, see Other states

S

San Marino - Most Serene Republic of San Marino
Serbs, Croats and Slovenes - Kingdom of Serbs, Croats, and Slovenes (from December 1)
Siam - Kingdom of Siam
Slovenes, Croats and Serbs - State of Slovenes, Croats and Serbs (from October 28 to December 1)
South Africa - Union of South Africa
23x15px Spain - Kingdom of Spain
Sweden - Kingdom of Sweden
Switzerland - Swiss Confederation

T

Transcaucasia - Transcaucasian Democratic Federative Republic (from February 24 to May 28)
Turkey - Sublime Ottoman State

U

United Kingdom - United Kingdom of Great Britain and Ireland
United States - United States of America
Uruguay - Eastern Republic of Uruguay

V

Venezuela - United States of Venezuela

Y

Yemen - Mutawakkilite Kingdom of Yemen (from November 1)

Limited sovereignty for occupatio bellica

Albania - Principality of Albania
Luxembourg - Grand Duchy of Luxembourg
Montenegro - Kingdom of Montenegro (to December 1)
Serbia - Kingdom of Serbia (to December 1)

Other states

Autonomous but still dependent from Britain

Australia - Commonwealth of Australia - Canberra
Canada - Dominion of Canada - Ottawa
New Zealand - Dominion of New Zealand - Wellington
Newfoundland - Dominion of Newfoundland - St Johns
South Africa - Union of South Africa - Pretoria

Autonomous but still dependent from China

Mongolia - Niislel Khüree
Tibet - Lhasa

Autonomous but still dependent from Denmark

Iceland - Kingdom of Iceland (from December 1) - Reykjavík

Claimed by the Russian Constituent Assembly

Russia — Russian Democratic Federative Republic (January 19, Assembly dissolved by VTsIK on same day)

Insurgent against Estonia

Estonian Commune - Commune of the Working People of Estonia (from November 29)

Insurgent against Romania

Banat Republic - Banat Republic (from November 1 to November 15)

Insurgent against Russia

Alash - Alash Autonomy
Aras - Republic of Aras (from December)
Belarus - Belarusian People's Republic (from March 25)
Centrocaspian Dictatorship (from August 1 to September 15)
Courland and Semigallia - Duchy of Courland and Semigallia (from March 8 to September 22)
Crimea - Crimean People's Republic (to January)
Don - Don Republic (from May 18)
23x15px Donetsk-Krivoy Rog - Donetsk-Krivoy Rog Soviet Republic (from February 12 to March 20)
Finland - Kingdom of Finland
Finnish Socialist Workers' Republic
Idel-Ural - Idel-Ural State (to April)
* Kars - Provisional National Government of the Southwestern Caucasus (from December 1)
Khiva - Khanate of Khiva
Komancza - Komancza Republic (from November 4)
Kuban - Kuban People's Republic (from January 28)
Lemko-Rusyn - Lemko Rusyn Republic of Florynka (from December 5)
Lithuania - Kingdom of Lithuania (from July 13 to November 2)
Moldavia - Moldavian Democratic Republic (to April 9)
Northern Caucasus - Mountainous Republic of the Northern Caucasus
Poland - Kingdom of Poland (to November 11)
Russia, White - Provisional All-Russian Government (from September 23)
Siberia - Siberian Republic (from June to November)
Siberia, Autonomous - Provisional Government of Autonomous Siberia (from June 29)
Ukraine
- Ukrainian People's Republic (to January 27)
- Ukrainian State (from April 28 to December 14)
- Ukrainian People's Republic (from December 14)
Ukraine, Soviet - Soviet Republic of Ukraine
Ukraine, West - West Ukrainian National Republic (from October 19)