List of sovereign states in 1920

Sovereign states by year
List of sovereign states in 1919	Events of 1920	List of sovereign states in 1921

Sovereign states

A

• Afghanistan - Emirate of Afghanistan
• Albania - Principality of Albania
• Andorra - Principality of Andorra
• Argentina - Argentine Republic
• Armenia
  • Republic of Armenia (to November 29)
  • Armenian Socialist Soviet Republic (from November 29)
• Asir - Emirate of Asir
• Asir, Upper - Emirate of Upper Asir (to August)
• Australia - Commonwealth of Australia
• Austria - Federal State of Austria
• Azerbaijan
  • Azerbaijan Democratic Republic (to April 28)
  • Azerbaijan Socialist Soviet Republic (from April 28)

B

• Belgium - Kingdom of Belgium
• Bolivia - Republic of Bolivia
• 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 (to 1920)
  • Czechoslovak Republic (from 1920)

D

• Danzig - Free City of Danzig (from November 15)
• Denmark - Kingdom of Denmark
• Dominican Republic

E

• Ecuador - Republic of Ecuador
• El Salvador - Republic of El Salvador
• Estonia - Republic of Estonia
• Ethiopia - Ethiopian Empire

F

• Finland - Republic of Finland
• Fiume - Free State of Fiume (from November 12)
• France - French Republic

G

• Georgia - Democratic Republic of Georgia
• Germany - German Reich
• 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 - Kingdom of Hungary (from March 1)

I

• Iceland - Kingdom of Iceland
• Italy - Kingdom of Italy

J

• Japan - Empire of Japan

L

• Latvia (Disputed between two governments to January 13)
  • Republic of Latvia
  • Latvian Socialist Soviet Republic (to January 13)
• Liberia - Republic of Liberia
• Liechtenstein - Principality of Liechtenstein
• Lithuania - Republic of Lithuania
• Luxembourg - Grand Duchy of Luxembourg

M

• Mexico - United Mexican States
• Monaco - Principality of Monaco

N

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

O

• Ottoman Empire - Sublime Ottoman State

P

• Panama - Republic of Panama
• Paraguay - Republic of Paraguay
• Persia - Persian Empire
• Peru - Peruvian Republic
• Poland - Republic of Poland
• Portugal - Portuguese Republic

R

• Romania - Kingdom of Romania
• Russia - Russian Socialist Federative Soviet Republic

S

• San Marino - Most Serene Republic of San Marino
• Serbs, Croats and Slovenes - Kingdom of Serbs, Croats, and Slovenes
• Siam - Kingdom of Siam
• South Africa - Union of South Africa
• Spain - Kingdom of Spain
• Sweden - Kingdom of Sweden
• Switzerland - Swiss Confederation

T

• Turkey - Republic of Turkey

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

Other states

• Alash - Alash Autonomy (to August 26)
• Azadistan
• Bottleneck - Free State Bottleneck
• Bukharan - Bukharan People's Soviet Republic (from October 8)
• Byelorussia - Byelorussian Socialist Soviet Republic (from August 1)
• Carnaro - Italian Regency of Carnaro (from September 8 to December 30)
• Central Lithuania - Republic of Central Lithuania (from October 12)
• Don - Don Republic (to 1920)
• Far Eastern Republic (from April 6)
• Galicia - Galician Socialist Soviet Republic (from July 8 to September 21)
• Gilan - Persian Socialist Soviet Republic (from June)
• Ireland - Irish Republic
• Khiva (to April 30), Khorezm (from April 30)
  • Khanate of Khiva (to April 30)
  • Khorezm People's Soviet Republic (from April 30)
• Kuban - Kuban People's Republic (to March 17)
• Lemko-Rusyn - Lemko-Rusyn Republic (to March)
• Morocco - Sultanate of Morocco (de jure sovereign state under french and Spanish protectorate)
• North Caucasian Emirate
• Northern Caucasus - Mountainous Republic of the Northern Caucasus (to June)
• North Ingria - Republic of North Ingria (to December 20)
• Mandatory Palestine - Mandatory Palestine (from April 25)
• Siberia, Autonomous - Provisional Government of Autonomous Siberia (to February 7)
• Tavolara - Kingdom of Tavolara
• Tibet
• Ukraine, Soviet - Ukrainian Socialist Soviet Republic

League of Nations Mandates

• Nauru (administered by Australia, New Zealand and the United Kingdom from December 17)
• New Guinea - Territory of New Guinea (administered by Australia from December 17)
• South Pacific Mandate (administered by Japan from December 17)
• South-West Africa (administered by South Africa from December 17)
• Western Samoa (administered by New Zealand from December 17)

Not enacted

• Mesopotamia - (administered by the United Kingdom from November 11)