List of countries in the 1920s

This is a list of countries in the 1920s, giving an overview of states around the world during the period between 1 January 1920 and 31 December 1929. It contains entries, arranged alphabetically, with information on the status and recognition of their sovereignty. It includes Widely-recognized sovereign states, and entities which were de facto sovereign but which were not Widely-recognized by other states.

Sovereign states
Name and capital cityInformation on status and recognition of sovereignty A  Abkhazia – Socialist Soviet Republic of Abkhazia  
Recognized independent state. It was subordinate to the Georgian SSR from December 16, 1921. →  →  →  →  Afghanistan 
 Emirate of Afghanistan 
 Kingdom of Afghanistan 
 Emirate of Afghanistan 
 Kingdom of Afghanistan 
Reign of Amanullah Khan, Inayatullah Khan, and Mohammed Nadir Shah: Widely-recognized independent stateReign of Habibullāh Kalakāni, Ali Ahmad Khan and Abd-al Karim: Not recognized by any state. →  →  →  Albania 
 Principality of Albania 
 Albanian Republic 
 Albanian Kingdom 
Widely-recognized independent state. LON member state from December 17, 1920. Andorra – Principality of Andorra 
Widely-recognized independent state. – Argentine Republic 
Widely-recognized independent state. LON founding member state from January 10, 1920. →  Armenia  
 Republic of Armenia 
 Armenian Socialist Soviet Republic 
Widely-recognized independent state. Became part of the Transcaucasian SFSR from March 12, 1922. Asir – Idrisid Emirate of Asir  
Widely-recognized independent state. Vassal state of Kingdom of Hejaz and Nejd from October 21, 1926. Asir, Upper – Sheikdom of Upper Asir  
Widely-recognized independent state. Partitioned between Sultanate of Nejd and Idrisid Emirate of Asir from August 30, 1920. – Commonwealth of Australia 
Widely-recognized independent state after November 15, 1926. LON founding member state from January 10, 1920. Australia had two external territories:
  Norfolk Island


Australia administered two League of Nations mandates:
  Nauru 
  New Guinea  Austria – Republic of Austria 
Widely-recognized independent state. LON member state from December 15, 1920. →  →  Azerbaijan  
 Azerbaijan Democratic Republic 
 Azerbaijan Socialist Soviet Republic 
Widely-recognized independent state. Became part of the Transcaucasian SFSR from March 12, 1922.
  Nakhichevan ASSR  Московский договор между Росскией и Турцией, 16 марта 1921 года  B  – Kingdom of Belgium 
Widely-recognized independent state. LON founding member state from January 10, 1920. Belgium had sovereignty over one colony and one concession:

  Tientsin 

Belgium administered one League of Nations mandate:
  Ruanda-Urundi  
 Republic of Bolivia 
 Republic of Bolivia 
Widely-recognized independent state. LON founding member state from January 10, 1920. Brazil – Republic of the United States of Brazil 
Widely-recognized independent state. LON founding member state from January 10, 1920; withdrew in June 14, 1926. Brazil was a federation of 20 states, one territory, and one federal district. – Kingdom of Bulgaria 
Widely-recognized independent state. LON member state from December 16, 1920. C  – Dominion of Canada 
Widely-recognized independent state after November 15, 1926. LON founding member state from January 10, 1920. – Republic of Chile 
 Parliamentary Era 
 Republic of Chile 
Widely-recognized independent state. LON founding member state from January 10, 1920. →  – Republic of China
Capital: Nanking, Peking, Chungking
Widely-recognized independent state. LON founding member state from January 10, 1920. – Republic of Colombia 
Widely-recognized independent state. LON founding member state from January 10, 1920. – Republic of Costa Rica 
Widely-recognized independent state. LON member state from December 16, 1920; withdrew in January 22, 1925. – Republic of Cuba 
Widely-recognized independent state. LON founding member state from January 10, 1920. →  Czechoslovakia 
 Czecho-Slovak Republic 
 Czechoslovak Republic 
Widely-recognized independent state. LON founding member state from January 10, 1920. D  – Free City of Danzig  
Widely-recognized independent. Under League of Nations protection. – Kingdom of Denmark 
Widely-recognized independent state. LON founding member state from January 10, 1920. 
Widely-recognized independent state. LON member state from September 28, 1924. E  Ecuador 
 Republic of Ecuador 
 Republic of Ecuador 
Widely-recognized independent state. – Kingdom of Egypt  
Widely-recognized independent state. – Republic of El Salvador 
Widely-recognized independent state. LON founding member state from January 10, 1920. – Republic of Estonia 
Widely-recognized independent state. LON member state from September 22, 1921. – Ethiopian Empire 
Widely-recognized independent state. LON member state from September 28, 1923. F  – Republic of Finland 
Widely-recognized independent state. LON member state from December 16, 1920. – Free State of Fiume  
Widely-recognized independent. Annexed by Italy from February 22, 1924. France – French Republic 
Widely-recognized independent state. LON founding member state from January 10, 1920. France administered the foreign affairs of the following protectorates:
  French Morocco 

France administered the following League of Nations mandates:
  Alawite 
  Greater Lebanon 
  Syrian Federation 
  State of Syria 
  →  Souaida 
  French Cameroons 
  French Togoland 
  Saar Basin  G  →  →  Georgia 
 Democratic Republic of Georgia 
 Georgian Soviet Socialist Republic 
Widely-recognized independent state. Georgian SSR had one autonomous republic (from July 16, 1921): Adjarian ASSR. Became part of the Transcaucasian SFSR from March 12, 1922.
  SSR Abkhazia  Germany – German Realm 
Widely-recognized independent state. LON member state from September 8, 1926. →  Greece 
 Kingdom of Greece 
 Hellenic Republic 
Widely-recognized independent state. LON founding member state from January 10, 1920. – Republic of Guatemala 
Widely-recognized independent state. LON founding member state from January 10, 1920. H  →  Ha'il / Jabal Shammar – Emirate of Ha'il  
Widely-recognized independent state. It was completely conquered by Saudi forces from November 2, 1921 and subsequently incorporated into the Sultanate of Nejd. – Republic of Haiti 
Widely-recognized independent state. LON founding member state from January 10, 1920. →  – Hashemite Kingdom of Hejaz  
Widely-recognized independent state. Annexed by Sultanate of Nejd, creating the Kingdom of Hejaz and Nejd from January 8, 1926. Honduras – Republic of Honduras 
Widely-recognized independent state. LON founding member state from January 10, 1920. Hungary – Kingdom of Hungary  
Widely-recognized independent state. LON member state from September 18, 1922. I  Iceland – Kingdom of Iceland 
Widely-recognized independent state.  – Irish Free State  
Widely-recognized independent state after November 15, 1926. LON member state from September 10, 1923. – Kingdom of Italy 
Widely-recognized independent state. LON founding member state from January 10, 1920. Italy had four colonies and one concession:
  Italian Cyrenaica 
  Italian Eritrea 
  Italian Somaliland 
  Italian Tripolitania 
  Tientsin  J  – Empire of Japan 
Widely-recognized independent state. LON founding member state from January 10, 1920. Japan administered one League of Nations mandate:
  South Seas Mandate L  &  Latvia  
  Republic of Latvia

Widely-recognized independent state. LON member state from September 22, 1921. – Republic of Liberia 
Widely-recognized independent state. LON founding member state from January 10, 1920. →  – Principality of Liechtenstein 
Widely-recognized independent state. – Republic of Lithuania 
Widely-recognized independent state. LON member state from September 22, 1921. – Grand Duchy of Luxembourg 
Widely-recognized independent state. LON member state from December 16, 1920. M  – United Mexican States 
Widely-recognized independent state. – Principality of Monaco 
Widely-recognized independent state. Mongolia 
 Mongolian People's Government 
 Mongolian People's Republic 
Widely-recognized independent state. Mountain Republic - Mountainous Republic of the Northern Caucasus  
Widely-recognized independent state. Incorporated into the Russian SFSR as the Mountain ASSR from January 20, 1921. N  →  Nejd  
 Emirate of Nejd and Hasa 
 Sultanate of Nejd 
Widely-recognized independent state. Nejd annexed Hejaz, creating the Kingdom of Hejaz and Nejd from January 8, 1926. Nejd and Hejaz – Kingdom of Nejd and Hejaz 
Capital: Mecca (Hejaz), Riyadh (Nejd)
  Nejd 
 Sultanate of Nejd 
 Kingdom of Nejd and its Dependencies 
  Hejaz – Kingdom of Hejaz 
Widely-recognized independent state. Nejd and Hejaz had one protectorate:
  Asir  Nepal – Kingdom of Nepal 
Widely-recognized independent state. – Kingdom of the Netherlands 
Widely-recognized independent state. LON founding member state from January 10, 1920. – Dominion of Newfoundland 
Widely-recognized independent state after November 15, 1926. New Zealand – Dominion of New Zealand 
Widely-recognized independent state after November 15, 1926. LON founding member state from January 10, 1920. The following are territories of New Zealand:
  Cook Islands 
  Niue Island 
  Ross Dependency 
  Union Islands 

New Zealand administered one League of Nations mandate:
  Western Samoa  – Republic of Nicaragua 
Widely-recognized independent state. LON founding member state from January 10, 1920. – Kingdom of Norway 
Widely-recognized independent state. LON founding member state from January 10, 1920. O  – Sublime Ottoman State  
Widely-recognized independent state. Ottoman Empire had one protectorate:
  North Caucasian Emirate  P  – Republic of Panama 
Widely-recognized independent state. – Republic of Paraguay 
Widely-recognized independent state. LON founding member state from January 10, 1920. →  Persia 
 Persian Empire 
 Imperial State of Persia 
Widely-recognized independent state. LON founding member state from January 10, 1920. – Peruvian Republic 
Widely-recognized independent state. LON founding member state from January 10, 1920. →  Poland – Republic of Poland 
Widely-recognized independent state. LON founding member state from January 10, 1920. 
 First Portuguese Republic 
 Ditadura Nacional 
Widely-recognized independent state. LON founding member state from January 10, 1920. R  – Kingdom of Romania 
Widely-recognized independent state. LON founding member state from January 10, 1920. – Russian Socialist Federative Soviet Republic  
Widely-recognized independent state. Became part of the Soviet Union from December 30, 1922. Russia had two protectorates and one concession:
  Bukhara 
  Khiva 
  Tientsin  S  – Most Serene Republic of San Marino 
Widely-recognized independent state. Serbs, Croats and Slovenes / Yugoslavia 
 Kingdom of Serbs, Croats, and Slovenes 
 Kingdom of Yugoslavia 
Widely-recognized independent state. LON founding member state from January 10, 1920. Siam – Kingdom of Siam 
Widely-recognized independent state. LON founding member state from January 10, 1920. →  – Union of South Africa
Capital: Cape Town, Pretoria, Bloemfontein, and Pietermaritzburg
Widely-recognized independent state after November 15, 1926. LON founding member state from January 10, 1920. South Africa administered one League of Nations mandate:
  →  South West Africa  →  →  – Union of Soviet Socialist Republics  
Widely-recognized independent state. The Soviet Union was a federation of four (later seven) republics. Spain – Kingdom of Spain 
Widely-recognized independent state. LON founding member state from January 10, 1920. Spain had sovereignty over two colonies and one protectorate:


  Spanish Morocco  – Kingdom of Sweden 
Widely-recognized independent state. LON founding member state from January 10, 1920. – Swiss Confederation 
Widely-recognized independent state. LON founding member state from January 10, 1920. T  Tibet 
 De facto independent state. Claimed by the Republic of China. – Transcaucasian Socialist Federative Soviet Republic  
Widely-recognized independent state. The Transcaucasian SFSR was a federation constituted by the Armenian SSR, the Azerbaijan SSR and the Georgian SSR. Became part of the Soviet Union from December 30, 1922.  
 Turkey 
 Republic of Turkey 

Widely-recognized independent state. U  
 United Kingdom of Great Britain and Ireland 
 United Kingdom of Great Britain and Northern Ireland 
Widely-recognized independent state. LON founding member state from January 10, 1920. The following were colonies, and territories of the United Kingdom:
  Aden - Aden Protectorate 
  Amoy 

  Bahrain – State of Bahrain 
  Baker Island 

  Basutoland – Territory of Basutoland 
  Bechuanaland – Bechuanaland Protectorate 
  Bermuda 
  Bhutan – Kingdom of Bhutan 



  British Leeward Islands – Federal Colony of the Leeward Islands 
  – British Somaliland Protectorate 
  British Western Pacific Territories 
  British Windward Islands – Federal Colony of the Windward Islands 
  Brunei – State of Brunei 

  Cyprus 
  Falkland Islands 
  Federated Malay States 
  Fiji 
  Gambia – Gambia Colony and Protectorate 


  Guernsey – Bailiwick of Guernsey 
  Heard Island and McDonald Islands 
  Hong Kong 

  Isle of Man 
  Jamaica 
  Kenya 
  Jarvis Island 
  – Bailiwick of Jersey 
  Jiujiang 
 23px|border Kuwait – Sheikhdom of Kuwait 
  Maldive Islands – Sultanate of the Maldive Islands 
  Malta 
  Mauritius 
  Muscat and Oman – Sultanate of Muscat and Oman 
  Nigeria – Colony and Protectorate of Nigeria 

  Northern Rhodesia – Protectorate of Northern Rhodesia 
  – Nyasaland Protectorate 
  Qatar – State of Qatar 
  Saint Helena 
  Sarawak – Kingdom of Sarawak 
  Seychelles 
  Sierra Leone – Sierra Leone Colony and Protectorate 
  – Colony of Southern Rhodesia 

  Swaziland – Swaziland Protectorate 
  Transjordan 

  Tristan da Cunha 
  Trucial States 
  Uganda 
 Unfederated Malay States
  – State of Johor Darul Ta'zim 
  – State of Kedah Darul Aman 
  – State of Kelantan Darul Naim 
  – State of Perlis Indera Kayangan 
  Terengganu – State of Terengganu Darul Iman 
  Victoria Land 
  Weihaiwei 
  Zanzibar 
  Zhenjiang 

United Kingdom administered the following League of Nations mandates:
  British Cameroons 
  British Togoland 
  →  Iraq 
  Palestine 
  →  Transjordan 
  Saar Basin 
  Tanganyika  – United States of America 
Widely-recognized independent state. The following were territories of the United States of America:
  Alaska 
  American Samoa 
  Corn Islands 
  Guam 
  Hawaii 
  Howland Island 
  Johnston Atoll 
  Kingman Reef 
  Midway Atoll 
  Navassa Island 

  Petrel Islands 
  Philippine Islands 
  Puerto Rico 
  Quita Sueno Bank 
  Roncador Bank 
  Serrana Bank 
  Serranilla Bank 
  Swan Islands 
   – Eastern Republic of Uruguay 
Widely-recognized independent state. LON founding member state from January 10, 1920. V  – Vatican City State  
Widely recognized independent state. Vatican City is administered by the Holy See. – United States of Venezuela 
Widely-recognized independent state. LON founding member state from January 10, 1920. Y  Yemen – Mutawakkilite Kingdom of Yemen 
Widely-recognized independent state.

Other states
  Alash – Alash Autonomy 
   Ararat – Republic of Ararat (from October 28, 1927)
  Armenia, Mountainous 
  Azadistan
  Baranya-Baja – Serb-Hungarian Baranya-Baja Republic 
  Bottleneck – Free State Bottleneck 
  Bukharan 
 Bukharan People's Soviet Republic 
 Bukharan Socialist Soviet Republic 
  Byelorussia – Byelorussian Socialist Soviet Republic  
  Carnaro – Italian Regency of Carnaro 
  Central Lithuania – Republic of Central Lithuania 
  Don – Don Republic 

  Galicia – Galician Socialist Soviet Republic 
  Gilan – Persian Socialist Soviet Republic 
  Ireland – Irish Republic  
  Karelia Karelian United Government 
 Republic of Eastern Karelia 
  Khorasan – Autonomous Government of Khorasan 
  Khorezm 
 Khorezm People's Soviet Republic 
 Khorezm Socialist Soviet Republic 
  – Kuban People's Republic 
  Kurdistan – Kingdom of Kurdistan 
  – Labin Republic 
  Lajtabánság – Banate of Leitha 
  Lemko-Rusyn – Lemko-Rusyn Republic 
  Mirdita – Republic of Mirdita 
  Mongolia 
  North Ingria – Republic of North Ingria 
  Rhineland – Rhenish Republic 
  Rif – Confederal Republic of the Tribes of the Rif 
  Siberia, Autonomous – Provisional Government of Autonomous Siberia 
  Southern Karelia – Olonets Government of Southern Karelia 
  Syria – Arab Kingdom of Syria  
  Tannu Tuva 
 People's Republic of Tannu Tuva (to November 24, 1926)
 Tuvan People's Republic (from November 24, 1926)
  Uhtua – Republic of Uhtua 
  Ukraine, Soviet''' – Ukrainian Socialist Soviet Republic  

Notes

References

Category:1920s
Category:Lists of countries in the 20th century