List of sovereign states in the 1920s

This is a list of sovereign states 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 90 widely recognized sovereign states, and entities which were de facto sovereign but which were not widely recognized by other states.

Sovereign states
{|border="0" cellpadding="0" style="text-align:left; font-size: 95%; border-collapse: collapse; border'': 0px solid #AAAAAA;" !width=60%|Name and capital city !width=40%|Information on status and recognition of sovereignty
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A

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Recognized independent state. It was subordinate to the Georgian SSR from December 16, 1921.
 * style="vertical-align:top"| Abkhazia – Socialist Soviet Republic of Abkhazia (from March 31, 1921 to December 16, 1921)
 * style="vertical-align:top"| Abkhazia – Socialist Soviet Republic of Abkhazia (from March 31, 1921 to December 16, 1921)
 * colspan=2|
 * colspan=2|

Reign of Amanullah Khan, Inayatullah Khan, and Mohammed Nadir Shah: Widely-recognized independent state. Reign of Habibullāh Kalakāni, Ali Ahmad Khan and Abd-al Karim: Not recognized by any state.
 * style="vertical-align:top"| → →  →  →  →  → 🇦🇫 → 🇦🇫 Afghanistan
 * Emirate of Afghanistan (to 9 June 1926)
 * Kingdom of Afghanistan (from 9 June 1926 to 17 January 1929)
 * Emirate of Afghanistan (from 18 January 1929 to 13 October 1929)
 * Kingdom of Afghanistan (from 15 October 1929)
 * Kingdom of Afghanistan (from 15 October 1929)
 * colspan=2|
 * colspan=2|

Widely-recognized independent state. De facto Italian protectorate to August 2, 1920. LON member state from December 17, 1920.
 * style="vertical-align:top"|🇦🇱 → →  →  Albania
 * Principality of Albania (to January 31, 1925)
 * Albanian Republic (from January 31, 1925 to September 1, 1928)
 * Albanian Kingdom (from September 1, 1928)
 * Albanian Kingdom (from September 1, 1928)
 * colspan=2|
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Widely-recognized independent state.
 * style="vertical-align:top"| Andorra – Principality of Andorra
 * style="vertical-align:top"| Andorra – Principality of Andorra
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Widely-recognized independent state. LON founding member state from January 10, 1920.
 * style="vertical-align:top"|🇦🇷 Argentina – Argentine Republic
 * style="vertical-align:top"|🇦🇷 Argentina – Argentine Republic
 * colspan=2|
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Widely-recognized independent state. Became part of the Transcaucasian SFSR from March 12, 1922.
 * style="vertical-align:top"|🇦🇲 → Armenia (to March 12, 1922)
 * Republic of Armenia (to November 29, 1920)
 * Armenian Socialist Soviet Republic (from November 29, 1920 to March 12, 1922)
 * Armenian Socialist Soviet Republic (from November 29, 1920 to March 12, 1922)
 * colspan=2|
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Widely-recognized independent state. Vassal state of Kingdom of Hejaz and Nejd from October 21, 1926.
 * style="vertical-align:top"| Asir – Idrisid Emirate of Asir (to October 21, 1926)
 * style="vertical-align:top"| Asir – Idrisid Emirate of Asir (to October 21, 1926)
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Widely-recognized independent state. Partitioned between Sultanate of Nejd and Idrisid Emirate of Asir from August 30, 1920.
 * style="vertical-align:top"| Asir, Upper – Sheikdom of Upper Asir (to August 30, 1920)
 * style="vertical-align:top"| Asir, Upper – Sheikdom of Upper Asir (to August 30, 1920)
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Widely recognized state.
 * style="vertical-align:top"| Aussa – Sultanate of Aussa
 * style="vertical-align:top"| Aussa – Sultanate of Aussa
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Widely-recognized independent state after 15 November, 1926. LON founding member state from 10 January, 1920. Australia had two external territories:
 * style="vertical-align:top"|🇦🇺 Australia – Commonwealth of Australia Capital: Melbourne (to 9 May, 1927), Canberra (from 9 May, 1927)
 * style="vertical-align:top"|🇦🇺 Australia – Commonwealth of Australia Capital: Melbourne (to 9 May, 1927), Canberra (from 9 May, 1927)
 * 🇦🇺 Norfolk Island
 * undefined

Australia administered two League of Nations mandates:
 * 🇦🇺 Nauru (Administered by Australia, New Zealand and the United Kingdom from December 17, 1920)
 * 🇦🇺 New Guinea (Administered from December 17, 1920)
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Widely-recognized independent state. LON member state from December 15, 1920.
 * style="vertical-align:top"|🇦🇹 Austria – Republic of Austria
 * style="vertical-align:top"|🇦🇹 Austria – Republic of Austria
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Widely-recognized independent state. Became part of the Transcaucasian SFSR from March 12, 1922. Azerbaijan had one protectorate:
 * style="vertical-align:top"|🇦🇿 → →  Azerbaijan (to March 12, 1922)
 * Azerbaijan Democratic Republic (to April 28, 1920)
 * Azerbaijan Socialist Soviet Republic (from April 28, 1920 to March 12, 1922)
 * Azerbaijan Socialist Soviet Republic (from April 28, 1920 to March 12, 1922)
 * Nakhichevan ASSR (Protectorate from March 16, 1921)
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B

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Widely-recognized independent state. LON founding member state from January 10, 1920. Belgium had sovereignty over one colony and one concession:
 * style="vertical-align:top"|🇧🇪 Belgium – Kingdom of Belgium
 * style="vertical-align:top"|🇧🇪 Belgium – Kingdom of Belgium
 * Belgian Congo (Colony)
 * 🇧🇪 Tientsin (Concession)

Belgium administered one League of Nations mandate:
 * 🇧🇪 Ruanda-Urundi (LON mandate from July 20, 1922. Administrative union with the Belgian Congo from March 1, 1926)
 * colspan=2|
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Widely-recognized independent state. LON founding member state from January 10, 1920.
 * style="vertical-align:top"|🇧🇴 Bolivia
 * Republic of Bolivia (to July 12, 1920)
 * Republic of Bolivia (from July 12, 1920)
 * Republic of Bolivia (from July 12, 1920)
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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.
 * style="vertical-align:top"|🇧🇷 Brazil – Republic of the United States of Brazil
 * style="vertical-align:top"|🇧🇷 Brazil – Republic of the United States of Brazil
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Widely-recognized independent state. LON member state from December 16, 1920.
 * style="vertical-align:top"| undefined – Kingdom of Bulgaria
 * style="vertical-align:top"| undefined – Kingdom of Bulgaria
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C

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Widely-recognized independent state after November 15, 1926. LON founding member state from January 10, 1920.
 * style="vertical-align:top"|🇨🇦 → 🇨🇦 Canada – Dominion of Canada
 * style="vertical-align:top"|🇨🇦 → 🇨🇦 Canada – Dominion of Canada
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Widely-recognized independent state. LON founding member state from January 10, 1920.
 * style="vertical-align:top"|🇨🇱 Chile
 * Parliamentary Era (to 18 September 1925)
 * Republic of Chile (from 18 September 1925)
 * Republic of Chile (from 18 September 1925)
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Capital: Beijing, Nanjing Widely-recognized independent state. LON founding member state from January 10, 1920.
 * style="vertical-align:top"| → undefined – Republic of China
 * style="vertical-align:top"| → undefined – Republic of China
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Widely-recognized independent state. LON founding member state from January 10, 1920.
 * style="vertical-align:top"|🇨🇴 Colombia – Republic of Colombia
 * style="vertical-align:top"|🇨🇴 Colombia – Republic of Colombia
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Widely-recognized independent state. LON member state from December 16, 1920; withdrew in January 22, 1925.
 * style="vertical-align:top"|🇨🇷 Costa Rica – Republic of Costa Rica
 * style="vertical-align:top"|🇨🇷 Costa Rica – Republic of Costa Rica
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Widely-recognized independent state. LON founding member state from January 10, 1920.
 * style="vertical-align:top"| undefined – Republic of Cuba
 * style="vertical-align:top"| undefined – Republic of Cuba
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Widely-recognized independent state. LON founding member state from January 10, 1920.
 * style="vertical-align:top"| → Czechoslovakia
 * Czecho-Slovak Republic (to 1920)
 * Czechoslovak Republic (from 1920)
 * Czechoslovak Republic (from 1920)
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D

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Widely-recognized independent. Under League of Nations protection.
 * style="vertical-align:top"| Danzig – Free City of Danzig (from November 15, 1920)
 * style="vertical-align:top"| Danzig – Free City of Danzig (from November 15, 1920)
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Widely-recognized independent state. LON founding member state from January 10, 1920.
 * style="vertical-align:top"|🇩🇰 Denmark – Kingdom of Denmark
 * style="vertical-align:top"|🇩🇰 Denmark – Kingdom of Denmark
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Widely-recognized independent state under United States military occupation to 18 September 1924. LON member state from September 28, 1924.
 * style="vertical-align:top"|🇩🇴 Dominican Republic – Third Dominican Republic
 * style="vertical-align:top"|🇩🇴 Dominican Republic – Third Dominican Republic
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E

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Widely-recognized independent state.
 * style="vertical-align:top"| Ecuador
 * Republic of Ecuador (to 9 July 1925)
 * Republic of Ecuador (from 9 July 1925)
 * Republic of Ecuador (from 9 July 1925)
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Widely-recognized independent state.
 * style="vertical-align:top"| undefined – Kingdom of Egypt (from February 28, 1922)
 * style="vertical-align:top"| undefined – Kingdom of Egypt (from February 28, 1922)
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Widely-recognized independent state. LON founding member state from January 10, 1920.
 * style="vertical-align:top"|🇸🇻 El Salvador – Republic of El Salvador
 * style="vertical-align:top"|🇸🇻 El Salvador – Republic of El Salvador
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Widely-recognized independent state. LON member state from September 22, 1921.
 * style="vertical-align:top"|🇪🇪 Estonia – Republic of Estonia
 * style="vertical-align:top"|🇪🇪 Estonia – Republic of Estonia
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Widely-recognized independent state. LON member state from September 28, 1923.
 * style="vertical-align:top"| undefined – Ethiopian Empire
 * style="vertical-align:top"| undefined – Ethiopian Empire
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 * colspan=3|
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F

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Widely-recognized independent state. LON member state from December 16, 1920.
 * style="vertical-align:top"|🇫🇮 Finland – Republic of Finland
 * style="vertical-align:top"|🇫🇮 Finland – Republic of Finland
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Widely-recognized independent. Annexed by Italy from February 22, 1924.
 * style="vertical-align:top"| Fiume – Free State of Fiume (from November 12, 1920 to February 22, 1924)
 * style="vertical-align:top"| Fiume – Free State of Fiume (from November 12, 1920 to February 22, 1924)
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Widely-recognized independent state. LON founding member state from January 10, 1920. France administered the foreign affairs of the following protectorates:
 * style="vertical-align:top"|🇫🇷 France – French Republic
 * style="vertical-align:top"|🇫🇷 France – French Republic
 * French Morocco (Protectorate)

France administered the following League of Nations mandates:
 * Alawite (LON mandate from September 2, 1920. Administered by France from September 29, 1923.)
 * Greater Lebanon (LON mandate from September 1, 1920. Administered by France from September 29, 1923)
 * Syrian Federation (LON mandate from June 28, 1922 to January 1, 1925. Administered by France from September 29, 1923)
 * State of Syria (LON mandate from January 1, 1925)
 * → Souaida (LON mandate from July 25, 1920. Administered by France from September 29, 1923)
 * 🇫🇷 French Cameroons (LON mandate from July 20, 1922)
 * 🇫🇷 French Togoland (LON mandate from July 20, 1922)
 * Saar Basin (Administered by the United Kingdom and France from January 10, 1920)
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G

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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.
 * style="vertical-align:top"| → →  Georgia (to March 12, 1922)
 * Democratic Republic of Georgia (to February 11, 1921)
 * Georgian Soviet Socialist Republic (from February 11, 1921 to March 12, 1922)
 * Georgian Soviet Socialist Republic (from February 11, 1921 to March 12, 1922)
 * SSR Abkhazia (Associated state from December 16, 1921)
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Widely-recognized independent state. LON member state from September 8, 1926.
 * style="vertical-align:top"| Germany – German Realm
 * style="vertical-align:top"| Germany – German Realm
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Widely-recognized independent state. LON founding member state from January 10, 1920.
 * style="vertical-align:top"| → Greece
 * Kingdom of Greece (to March 25, 1924)
 * Hellenic Republic (from March 25, 1924)
 * Hellenic Republic (from March 25, 1924)
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Widely-recognized independent state. LON founding member state from January 10, 1920.
 * style="vertical-align:top"|🇬🇹 Guatemala – Republic of Guatemala
 * style="vertical-align:top"|🇬🇹 Guatemala – Republic of Guatemala
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H

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Widely-recognized independent state. It was completely conquered by Saudi forces from November 2, 1921 and subsequently incorporated into the Sultanate of Nejd.
 * style="vertical-align:top"| → Ha'il / Jabal Shammar – Emirate of Ha'il (to November 2, 1921)
 * style="vertical-align:top"| → Ha'il / Jabal Shammar – Emirate of Ha'il (to November 2, 1921)
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Widely-recognized independent state under United States occupation. LON founding member state from January 10, 1920.
 * style="vertical-align:top"|🇭🇹 Haiti – Republic of Haiti
 * style="vertical-align:top"|🇭🇹 Haiti – Republic of Haiti
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Widely-recognized independent state. Annexed by Sultanate of Nejd, creating the Kingdom of Hejaz and Nejd from January 8, 1926.
 * style="vertical-align:top"| → Kingdom of Hejaz – Hashemite Kingdom of Hejaz (to January 8, 1926)
 * style="vertical-align:top"| → Kingdom of Hejaz – Hashemite Kingdom of Hejaz (to January 8, 1926)
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Widely-recognized independent state. LON founding member state from January 10, 1920.
 * style="vertical-align:top"|🇭🇳 Honduras – Republic of Honduras
 * style="vertical-align:top"|🇭🇳 Honduras – Republic of Honduras
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Widely-recognized independent state. LON member state from September 18, 1922.
 * style="vertical-align:top"| → Hungary
 * Hungarian Republic (to February 29, 1920)
 * Kingdom of Hungary (from March 1, 1920)
 * Kingdom of Hungary (from March 1, 1920)
 * colspan=2|
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 * colspan=3|
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I

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Widely-recognized independent state.
 * style="vertical-align:top"| Iceland – Kingdom of Iceland
 * style="vertical-align:top"| Iceland – Kingdom of Iceland
 * colspan=2|
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Widely-recognized independent state after November 15, 1926. LON member state from September 10, 1923.
 * style="vertical-align:top"|  Irish Free State – Irish Free State (from December 6, 1922)
 * style="vertical-align:top"|  Irish Free State – Irish Free State (from December 6, 1922)
 * colspan=2|
 * colspan=2|

Widely-recognized independent state under fascism from 31 October 1922. LON founding member state from January 10, 1920. Italy had four colonies and three concessions:
 * style="vertical-align:top"| undefined – Kingdom of Italy
 * style="vertical-align:top"| undefined – Kingdom of Italy
 * Amoy (Concession)
 * Italian Cyrenaica (Colony)
 * Italian Eritrea (Colony)
 * Italian Somaliland (Colony)
 * Italian Tripolitania (Colony)
 * Shanghai (Concession)
 * Tientsin (Concession)
 * colspan=2|
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 * colspan=3|
 * colspan=3|

J

 * colspan=2|
 * colspan=2|

Widely-recognized independent state. LON founding member state from January 10, 1920. Japan had sovereignty over the following dependencies and concessions:
 * style="vertical-align:top"| undefined – Empire of Japan
 * style="vertical-align:top"| undefined – Empire of Japan
 * Chongqing (Concession)
 * Hangzhou (Concession)
 * Hankou (Concession)
 * Japanese Korea (Chōsen) (Dependency)
 * Karafuto (Dependency)
 * Kwantung (Concession)
 * Shashi (Concession)
 * Suzhou (Concession)
 * Taiwan (Dependency)
 * Tientsin (Concession)

Japan administered one League of Nations mandate:
 * South Seas Mandate
 * colspan=2|
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 * colspan=3|
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L

 * colspan=2|
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Widely-recognized independent state. LON member state from September 22, 1921.
 * style="vertical-align:top"|🇱🇻 & Latvia (disputed between two governments to January 13, 1920)
 * 🇱🇻 Republic of Latvia
 * Latvian Socialist Soviet Republic (to January 13, 1920)
 * Latvian Socialist Soviet Republic (to January 13, 1920)
 * colspan=2|
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Widely-recognized independent state. LON founding member state from January 10, 1920.
 * style="vertical-align:top"|🇱🇷 Liberia – Republic of Liberia
 * style="vertical-align:top"|🇱🇷 Liberia – Republic of Liberia
 * colspan=2|
 * colspan=2|

Widely-recognized independent state.
 * style="vertical-align:top"|🇱🇮 → 🇱🇮 Liechtenstein – Principality of Liechtenstein
 * style="vertical-align:top"|🇱🇮 → 🇱🇮 Liechtenstein – Principality of Liechtenstein
 * colspan=2|
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Widely-recognized independent state. LON member state from September 22, 1921.
 * style="vertical-align:top"|🇱🇹 Lithuania – Republic of Lithuania
 * style="vertical-align:top"|🇱🇹 Lithuania – Republic of Lithuania
 * colspan=2|
 * colspan=2|

Widely-recognized independent state. LON member state from December 16, 1920.
 * style="vertical-align:top"|🇱🇺 Luxembourg – Grand Duchy of Luxembourg
 * style="vertical-align:top"|🇱🇺 Luxembourg – Grand Duchy of Luxembourg
 * colspan=2|
 * colspan=2|


 * colspan=3|
 * colspan=3|

M

 * colspan=2|
 * colspan=2|

Widely-recognized independent state.
 * style="vertical-align:top"|🇲🇽 Mexico – United Mexican States
 * style="vertical-align:top"|🇲🇽 Mexico – United Mexican States
 * colspan=2|
 * colspan=2|

Widely-recognized independent state.
 * style="vertical-align:top"|🇲🇨 Monaco – Principality of Monaco
 * style="vertical-align:top"|🇲🇨 Monaco – Principality of Monaco
 * colspan=2|
 * colspan=2|

Widely-recognized independent state. Incorporated into the Russian SFSR as the Mountain ASSR from January 20, 1921.
 * style="vertical-align:top"| Mountain Republic - Mountainous Republic of the Northern Caucasus (to January 20, 1921)
 * style="vertical-align:top"| Mountain Republic - Mountainous Republic of the Northern Caucasus (to January 20, 1921)
 * colspan=2|
 * colspan=2|

De jure independent state. De facto a British protectorate.
 * style="vertical-align:top"| Muscat and Oman – Sultanate of Muscat and Oman
 * style="vertical-align:top"| Muscat and Oman – Sultanate of Muscat and Oman
 * colspan=2|
 * colspan=2|


 * colspan=3|
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N

 * colspan=2|
 * colspan=2|

Widely-recognized independent state. Nejd annexed Hejaz, creating the Kingdom of Hejaz and Nejd from January 8, 1926.
 * style="vertical-align:top"| → Nejd (to January 8, 1926)
 * Emirate of Nejd and Hasa (to August 22, 1921)
 * Sultanate of Nejd (from August 22, 1921 to January 8, 1926)
 * Sultanate of Nejd (from August 22, 1921 to January 8, 1926)
 * colspan=2|
 * colspan=2|

Capital: Mecca (Hejaz), Riyadh (Nejd) Widely-recognized independent state. Nejd and Hejaz had one protectorate:
 * style="vertical-align:top"| Hejaz and Nejd – Kingdom of Hejaz and Nejd (Personal Union, from January 8, 1926)
 * style="vertical-align:top"| Hejaz and Nejd – Kingdom of Hejaz and Nejd (Personal Union, from January 8, 1926)
 * Kingdom of Hejaz and Sultanate of Nejd (from January 8, 1926 to January 29, 1927)
 * Kingdom of Hejaz and Nejd (from January 29, 1927)
 * Asir (from October 21, 1926)
 * colspan=2|
 * colspan=2|

Widely-recognized independent state.
 * style="vertical-align:top"|🇳🇵 Nepal – Kingdom of Nepal (from December 21, 1923)
 * style="vertical-align:top"|🇳🇵 Nepal – Kingdom of Nepal (from December 21, 1923)
 * colspan=2|
 * colspan=2|

Widely-recognized independent state. LON founding member state from January 10, 1920. The Netherlands had sovereignty over three colonies:
 * style="vertical-align:top"|🇳🇱 Netherlands – Kingdom of the Netherlands
 * style="vertical-align:top"|🇳🇱 Netherlands – Kingdom of the Netherlands
 * 🇳🇱 Curaçao and Dependencies
 * 🇳🇱 Dutch East Indies
 * 🇳🇱 Surinam
 * colspan=2|
 * colspan=2|

Widely-recognized independent state after November 15, 1926.
 * style="vertical-align:top"| Newfoundland – Dominion of Newfoundland
 * style="vertical-align:top"| Newfoundland – Dominion of Newfoundland
 * colspan=2|
 * colspan=2|

Widely-recognized independent state after November 15, 1926. LON founding member state from January 10, 1920. The following are territories of New Zealand:
 * style="vertical-align:top"|🇳🇿 New Zealand – Dominion of New Zealand
 * style="vertical-align:top"|🇳🇿 New Zealand – Dominion of New Zealand
 * 🇳🇿 Cook Islands (Dependent territory)
 * 🇳🇿 Niue Island (Dependent territory)
 * 🇳🇿 Ross Dependency (Uninhabited dependent territory from November 14, 1923)
 * 🇳🇿 Union Islands (Dependent territory from February 11, 1926)

New Zealand administered one League of Nations mandate:
 * 🇼🇸 Western Samoa (LON mandate from December 17, 1920)
 * colspan=2|
 * colspan=2|

Widely-recognized independent state. LON founding member state from January 10, 1920.
 * style="vertical-align:top"|🇳🇮 Nicaragua – Republic of Nicaragua
 * style="vertical-align:top"|🇳🇮 Nicaragua – Republic of Nicaragua
 * colspan=2|
 * colspan=2|

Widely-recognized independent state. LON founding member state from January 10, 1920. Norway had sovereignty over two uninhabited possessions:
 * style="vertical-align:top"|🇳🇴 Norway – Kingdom of Norway
 * style="vertical-align:top"|🇳🇴 Norway – Kingdom of Norway
 * 🇳🇴 Bouvet Island (from January 23, 1928)
 * 🇳🇴 Sverdrup Islands
 * colspan=3|
 * colspan=3|

O

 * colspan=2|
 * colspan=2|

Widely-recognized independent state. Ottoman Empire had one protectorate:
 * style="vertical-align:top"| Ottoman Empire – Sublime Ottoman State (to November 1, 1922)
 * style="vertical-align:top"| Ottoman Empire – Sublime Ottoman State (to November 1, 1922)
 * North Caucasian Emirate (to March 1920)
 * colspan=2|
 * colspan=2|


 * colspan=3|
 * colspan=3|

P

 * colspan=2|
 * colspan=2|

Widely-recognized independent state.
 * style="vertical-align:top"|🇵🇦 Panama – Republic of Panama
 * style="vertical-align:top"|🇵🇦 Panama – Republic of Panama
 * colspan=2|
 * colspan=2|

Widely-recognized independent state. LON founding member state from January 10, 1920.
 * style="vertical-align:top"|🇵🇾 Paraguay – Republic of Paraguay
 * style="vertical-align:top"|🇵🇾 Paraguay – Republic of Paraguay
 * colspan=2|
 * colspan=2|

Widely-recognized independent state. LON founding member state from January 10, 1920.
 * style="vertical-align:top"| → 🇮🇷 Persia
 * Persian Empire (to October 31, 1925)
 * Imperial State of Persia (from October 31, 1925)
 * Imperial State of Persia (from October 31, 1925)
 * colspan=2|
 * colspan=2|

Widely-recognized independent state. LON founding member state from January 10, 1920.
 * style="vertical-align:top"|🇵🇪 Peru – Peruvian Republic
 * style="vertical-align:top"|🇵🇪 Peru – Peruvian Republic
 * colspan=2|
 * colspan=2|

Widely-recognized independent state. LON founding member state from January 10, 1920.
 * style="vertical-align:top"|🇵🇱 → 🇵🇱 Poland – Republic of Poland
 * style="vertical-align:top"|🇵🇱 → 🇵🇱 Poland – Republic of Poland
 * colspan=2|
 * colspan=2|

Widely-recognized independent state. LON founding member state from January 10, 1920. The following are colonies and possession of Portugal:
 * style="vertical-align:top"|🇵🇹 Portugal
 * First Portuguese Republic (to 29 May 1926)
 * Ditadura Nacional (from 29 May 1926)
 * Ditadura Nacional (from 29 May 1926)
 * Portuguese Cape Verde (Colony)
 * 🇵🇹 Portuguese Macau (Colony)
 * 🇵🇹 Portuguese East Africa (Colony)
 * Portuguese Guinea (Colony)
 * 🇵🇹 Portuguese India (Colony)
 * Portuguese Timor (Colony)
 * 🇵🇹 Portuguese West Africa (Colony)
 * 🇵🇹 Fort of São João Baptista de Ajudá (Possession)
 * 🇵🇹 Portuguese São Tomé and Príncipe (Colony)
 * colspan=2|
 * colspan=2|


 * colspan=3|
 * colspan=3|

R

 * colspan=2|
 * colspan=2|

Widely-recognized independent state. LON founding member state from January 10, 1920.
 * style="vertical-align:top"| undefined – Kingdom of Romania
 * style="vertical-align:top"| undefined – Kingdom of Romania
 * colspan=2|
 * colspan=2|

Widely-recognized independent state. Became part of the Soviet Union from December 30, 1922. Russia had three protectorates and one concession:
 * style="vertical-align:top"| Russian SFSR – Russian Socialist Federative Soviet Republic (to December 30, 1922)
 * style="vertical-align:top"| Russian SFSR – Russian Socialist Federative Soviet Republic (to December 30, 1922)
 * Bukhara (Protectorate to October 8, 1920)
 * Khiva (Protectorate to February 2, 1920)
 * Uryankhay (Protectorate to August 14, 1921)
 * Tientsin (De facto concession to September 15, 1920)
 * colspan=2|
 * colspan=2|


 * colspan=3|
 * colspan=3|

S

 * colspan=2|
 * colspan=2|

Widely-recognized independent state.
 * style="vertical-align:top"|🇸🇲 San Marino – Most Serene Republic of San Marino
 * style="vertical-align:top"|🇸🇲 San Marino – Most Serene Republic of San Marino
 * colspan=2|
 * colspan=2|

Widely-recognized independent state. LON founding member state from January 10, 1920.
 * style="vertical-align:top"| Serbs, Croats and Slovenes / Yugoslavia
 * Kingdom of Serbs, Croats, and Slovenes (to January 6, 1929)
 * Kingdom of Yugoslavia (from January 6, 1929)
 * Kingdom of Yugoslavia (from January 6, 1929)
 * colspan=2|
 * colspan=2|

Widely-recognized independent state. LON founding member state from January 10, 1920.
 * style="vertical-align:top"| Siam – Kingdom of Siam
 * style="vertical-align:top"| Siam – Kingdom of Siam
 * colspan=2|
 * colspan=2|

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:
 * style="vertical-align:top"| → undefined – Union of South Africa
 * style="vertical-align:top"| → undefined – Union of South Africa
 * → South West Africa (LON mandate from October 1, 1922)
 * colspan=2|
 * colspan=2|

Widely-recognized independent state. The Soviet Union was a federation of four (later seven) republics.
 * style="vertical-align:top"| → →  Soviet Union – Union of Soviet Socialist Republics (from December 30, 1922)
 * style="vertical-align:top"| → →  Soviet Union – Union of Soviet Socialist Republics (from December 30, 1922)
 * colspan=2|
 * colspan=2|

Widely-recognized independent state. LON founding member state from January 10, 1920. Spain had sovereignty over the following colonies, possessions and protectorate:
 * style="vertical-align:top"|🇪🇸 Spain – Kingdom of Spain
 * style="vertical-align:top"|🇪🇸 Spain – Kingdom of Spain
 * 🇪🇸 Elobey, Annobón and Corisco (Colony to 1926)
 * 🇪🇸 Fernando Poo (Colony to 1926)
 * 🇪🇸 Río Muni (Colony to 1926)
 * Spanish Guinea (Colony from 1926)
 * 🇪🇸 Spanish North Africa (Possession until 1925)
 * Spanish Sahara (Colony)
 * 🇲🇦 Spanish Morocco (Protectorate)
 * colspan=2|
 * colspan=2|

Widely-recognized independent state. LON founding member state from January 10, 1920.
 * style="vertical-align:top"|🇸🇪 Sweden – Kingdom of Sweden
 * style="vertical-align:top"|🇸🇪 Sweden – Kingdom of Sweden
 * colspan=2|
 * colspan=2|

Widely-recognized independent state. LON founding member state from January 10, 1920.
 * style="vertical-align:top"|🇨🇭 Switzerland – Swiss Confederation
 * style="vertical-align:top"|🇨🇭 Switzerland – Swiss Confederation
 * colspan=2|
 * colspan=2|


 * colspan=3|
 * colspan=3|

T

 * colspan=2|
 * colspan=2|

De facto independent state. Claimed by the Republic of China.
 * style="vertical-align:top"| Tibet
 * style="vertical-align:top"| Tibet
 * colspan=2|
 * colspan=2|

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.
 * style="vertical-align:top"| Transcaucasian SFSR – Transcaucasian Socialist Federative Soviet Republic (from March 12 to December 30, 1922)
 * style="vertical-align:top"| Transcaucasian SFSR – Transcaucasian Socialist Federative Soviet Republic (from March 12 to December 30, 1922)
 * colspan=2|
 * colspan=2|


 * style="vertical-align:top"|🇹🇷 Turkey (from November 1, 1922)
 * Turkey (from July 24, 1923 to October 29, 1923)
 * Republic of Turkey (from October 29, 1923)
 * Republic of Turkey (from October 29, 1923)

Widely-recognized independent state.
 * colspan=2|
 * colspan=2|


 * colspan=3|
 * colspan=3|

U

 * colspan=2|
 * colspan=2|

Widely-recognized independent state. LON founding member state from January 10, 1920. The following were colonies, concessions, and territories of the United Kingdom:
 * style="vertical-align:top"|
 * United Kingdom of Great Britain and Ireland (to April 12, 1927)
 * United Kingdom of Great Britain and Northern Ireland (from April 12, 1927)
 * United Kingdom of Great Britain and Northern Ireland (from April 12, 1927)
 * Aden (Protectorate)
 * Amoy (Concession)
 * Anglo-Egyptian Sudan (Condominium of the United Kingdom and the Sultanate/Kingdom of Egypt)
 * Ascension Island (Uninhabited possession, until 20 October 1922)
 * 🇧🇸 Bahamas (Crown colony)
 * Bahrain – State of Bahrain (Protectorate)
 * Baker Island (Uninhabited possession)
 * 🇧🇧 Barbados (Crown colony)
 * Basutoland – Territory of Basutoland (Crown colony)
 * Bechuanaland – Bechuanaland Protectorate (Protectorate)
 * Bermuda (Crown colony)
 * Bhutan – Kingdom of Bhutan (Independent state under Treaty of Punakha)
 * British East Africa (Protectorate to July 23, 1920)
 * British Guiana (Crown colony)
 * British Honduras (Crown colony)
 * British Leeward Islands – Federal Colony of the Leeward Islands (Crown colony)
 * British Somaliland – British Somaliland Protectorate (Protectorate)
 * British Western Pacific Territories (Crown colony)
 * British Windward Islands – Federal Colony of the Windward Islands (Crown colony)
 * Brunei – State of Brunei (Protectorate)
 * British Ceylon (Crown colony)
 * Cyprus (Crown colony)
 * Egypt (Protectorate to February 28, 1922)
 * Falkland Islands (Crown colony)
 * Federated Malay States (Protectorate)
 * Gambia – Gambia Colony and Protectorate (Crown colony and protectorate)
 * 🇬🇮 Gibraltar (Crown colony)
 * Gold Coast (Crown colony)
 * Guernsey – Bailiwick of Guernsey (Crown dependency)
 * Hankou (Concession until 1927)
 * Heard Island and McDonald Islands (Uninhabited possession)
 * Hong Kong (Crown colony)
 * British Raj (Crown colony. LON founding member state from January 10, 1920.)
 * Isle of Man (Crown dependency)
 * Jamaica (Crown colony)
 * 🇰🇪 Kenya (Crown colony from June 11, 1920 and protectorate from August 13, 1920)
 * Jarvis Island (Uninhabited possession)
 * 🇯🇪 Jersey – Bailiwick of Jersey (Crown dependency)
 * Jiujiang (Concession until 1929)
 * Flag of Kuwait 1921-1940.png Kuwait – Sheikhdom of Kuwait (Protectorate)
 * Maldive Islands – Sultanate of the Maldive Islands (Protectorate)
 * Malta (Crown colony)
 * Mauritius (Crown colony)
 * 🇳🇵 Nepal (Protectorate to December 21, 1923)
 * Nigeria – Colony and Protectorate of Nigeria (Crown colony and protectorate)
 * North Borneo (Protectorate)
 * Northern Rhodesia – Protectorate of Northern Rhodesia (Protectorate)
 * Nyasaland – Nyasaland Protectorate (Protectorate)
 * Qatar – State of Qatar (Protectorate)
 * Saint Helena (Crown colony)
 * Sarawak – Kingdom of Sarawak (Protectorate)
 * Seychelles (Crown colony)
 * Sierra Leone – Sierra Leone Colony and Protectorate (Crown colony and protectorate)
 * Sikkim (Independent state under the Treaty of Tumlong)
 * South Orkney Islands (Uninhabited possession)
 * Southern Rhodesia – Colony of Southern Rhodesia (Crown colony from 12 September 1923)
 * South Shetland Islands (Uninhabited possession)
 * Straits Settlements (Crown colony)
 * Swaziland – Swaziland Protectorate (Protectorate)
 * Transjordan (Protectorate from April 11, 1921 to September 29, 1923)
 * 🇹🇹 Trinidad and Tobago (Crown colony)
 * Tristan da Cunha (Crown colony)
 * Trucial States (Protectorate)
 * 🇺🇬 Uganda (Protectorate)
 * Unfederated Malay States
 * Johor (Protectorate)
 * Kedah (Protectorate)
 * → Kelantan (Protectorate)
 * Perlis (Protectorate)
 * Terengganu (Protectorate)
 * Tientsin (Concession)
 * Union Islands (Colony to February 11, 1926)
 * Victoria Land (Uninhabited possession)
 * Weihaiwei (Concession)
 * Zanzibar (Protectorate)
 * Zhenjiang (Concession until 1929)

United Kingdom administered the following League of Nations mandates:
 * British Cameroons (LON mandate from July 20, 1922)
 * British Togoland (LON mandate from July 20, 1922)
 * 🇮🇶 → 🇮🇶 Iraq (LON mandate from August 23, 1921)
 * Palestine (LON mandate from April 25, 1920. Administered by the United Kingdom from September 29, 1923)
 * → 🇯🇴 Transjordan (Administered under the Mandate for Palestine by the United Kingdom from September 29, 1923)
 * Saar Basin (Administered by the United Kingdom and France from January 10, 1920)
 * Tanganyika (LON mandate from July 20, 1922)
 * colspan=2|
 * colspan=2|

Widely-recognized independent state. The following were territories of the United States of America:
 * style="vertical-align:top"|🇺🇸 United States – United States of America
 * style="vertical-align:top"|🇺🇸 United States – United States of America
 * 🇺🇸 → Alaska (Territory)
 * 🇺🇸 American Samoa (Territory)
 * 🇺🇸 Corn Islands (Territory)
 * 🇺🇸 Guam (Territory)
 * Hawaii (Territory)
 * 🇺🇸 Howland Island (Uninhabited territory)
 * 🇺🇸 Johnston Atoll (Uninhabited territory)
 * 🇺🇸 Kingman Reef (Uninhabited territory)
 * 🇺🇸 Midway Atoll (Uninhabited territory)
 * 🇺🇸 Navassa Island (Uninhabited territory)
 * Panama Canal Zone (Territory)
 * 🇺🇸 Petrel Islands (Uninhabited territory)
 * 🇵🇭 Philippine Islands (Territory)
 * 🇺🇸 Puerto Rico (Territory)
 * 🇺🇸 Quita Sueno Bank (Uninhabited territory)
 * 🇺🇸 Roncador Bank (Uninhabited territory)
 * 🇺🇸 Serrana Bank (Uninhabited territory)
 * 🇺🇸 Serranilla Bank (Uninhabited territory)
 * 🇺🇸 Swan Islands (Uninhabited territory)
 * 🇺🇸 → United States Virgin Islands (Territory)
 * colspan=2|
 * colspan=2|

Widely-recognized independent state. LON founding member state from January 10, 1920.
 * style="vertical-align:top"|🇺🇾 Uruguay – Eastern Republic of Uruguay
 * style="vertical-align:top"|🇺🇾 Uruguay – Eastern Republic of Uruguay
 * colspan=2|
 * colspan=2|


 * colspan=3|
 * colspan=3|

V

 * colspan=2|
 * colspan=2|

Widely recognized independent state. Vatican City is administered by the Holy See.
 * style="vertical-align:top"|🇻🇦 Vatican City – Vatican City State (from February 1, 1929; effective from June 7, 1929)
 * style="vertical-align:top"|🇻🇦 Vatican City – Vatican City State (from February 1, 1929; effective from June 7, 1929)
 * colspan=2|
 * colspan=2|

Widely-recognized independent state. LON founding member state from January 10, 1920.
 * style="vertical-align:top"|🇻🇪 Venezuela – United States of Venezuela
 * style="vertical-align:top"|🇻🇪 Venezuela – United States of Venezuela
 * colspan=2|
 * colspan=2|


 * colspan=3|
 * colspan=3|

Y

 * colspan=2|
 * colspan=2|

Widely-recognized independent state.
 * style="vertical-align:top"| Yemen – Mutawakkilite Kingdom of Yemen
 * style="vertical-align:top"| Yemen – Mutawakkilite Kingdom of Yemen
 * colspan=2|
 * colspan=2|

States claiming sovereignty
Unrecognized state.
 * style="vertical-align:top"| Alash – Alash Autonomy (to August 26, 1920)
 * style="vertical-align:top"| Alash – Alash Autonomy (to August 26, 1920)
 * colspan=2|
 * colspan=2|

Unrecognized state.
 * style="vertical-align:top"| Ararat – Republic of Ararat (from October 28, 1927)
 * style="vertical-align:top"| Ararat – Republic of Ararat (from October 28, 1927)
 * colspan=2|
 * colspan=2|

Unrecognized state.
 * style="vertical-align:top"|🇦🇲 Armenia, Mountainous (from April 26 to July 13, 1921)
 * style="vertical-align:top"|🇦🇲 Armenia, Mountainous (from April 26 to July 13, 1921)
 * colspan=2|
 * colspan=2|

Unrecognized state.
 * style="vertical-align:top"| Azadistan (from April to September 13, 1920)
 * style="vertical-align:top"| Azadistan (from April to September 13, 1920)
 * colspan=2|
 * colspan=2|

Unrecognized state.
 * style="vertical-align:top"| Baranya–Baja – Serbian–Hungarian Baranya–Baja Republic (from 14 to 25 August 1921)
 * style="vertical-align:top"| Baranya–Baja – Serbian–Hungarian Baranya–Baja Republic (from 14 to 25 August 1921)
 * colspan=2|
 * colspan=2|

Quasi-state. Unoccupied territory within post-World War I Germany.
 * style="vertical-align:top"| Bottleneck – Free State of Bottleneck (to February 23, 1923)
 * style="vertical-align:top"| Bottleneck – Free State of Bottleneck (to February 23, 1923)
 * colspan=2|
 * colspan=2|

Soviet state.
 * style="vertical-align:top"| Bukhara (from October 8, 1920 to October 27, 1924)
 * Bukharan People's Soviet Republic (from October 8, 1920 to September 19, 1924)
 * Bukharan Socialist Soviet Republic (from September 19 to October 27, 1924)
 * Bukharan Socialist Soviet Republic (from September 19 to October 27, 1924)
 * colspan=2|
 * colspan=2|

Soviet state. Became part of the Soviet Union from December 30, 1922.
 * style="vertical-align:top"| Byelorussia – Byelorussian Socialist Soviet Republic (from July 31, 1920 to December 30, 1922)
 * style="vertical-align:top"| Byelorussia – Byelorussian Socialist Soviet Republic (from July 31, 1920 to December 30, 1922)
 * colspan=2|
 * colspan=2|

Unrecognized state.
 * style="vertical-align:top"| Carnaro – Italian Regency of Carnaro (from September 8 to December 30, 1920)
 * style="vertical-align:top"| Carnaro – Italian Regency of Carnaro (from September 8 to December 30, 1920)
 * colspan=2|
 * colspan=2|

Puppet state of the Second Polish Republic.
 * style="vertical-align:top"| Central Lithuania – Republic of Central Lithuania (from October 12, 1920)
 * style="vertical-align:top"| Central Lithuania – Republic of Central Lithuania (from October 12, 1920)
 * colspan=2|
 * colspan=2|

Unrecognized state.
 * style="vertical-align:top"| Don – Don Republic (to 1920)
 * style="vertical-align:top"| Don – Don Republic (to 1920)
 * colspan=2|
 * colspan=2|

Puppet state/Buffer state of Soviet Russia.
 * style="vertical-align:top"| Far Eastern Republic (from April 6, 1920 to November 15, 1922) Capital: Verkhneudinsk (to October 1920), Chita (from October 1920)
 * style="vertical-align:top"| Far Eastern Republic (from April 6, 1920 to November 15, 1922) Capital: Verkhneudinsk (to October 1920), Chita (from October 1920)
 * colspan=2|
 * colspan=2|

Unrecognized state.
 * style="vertical-align:top"| Galicia – Galician Socialist Soviet Republic (from July 8 to September 21, 1920)
 * style="vertical-align:top"| Galicia – Galician Socialist Soviet Republic (from July 8 to September 21, 1920)
 * colspan=2|
 * colspan=2|

Unrecognized state.
 * style="vertical-align:top"| Gilan – Persian Socialist Soviet Republic (from June 1920 to September 1921)
 * style="vertical-align:top"| Gilan – Persian Socialist Soviet Republic (from June 1920 to September 1921)
 * colspan=2|
 * colspan=2|

Unrecognized state.
 * style="vertical-align:top"|🇮🇪 Ireland – Irish Republic (to December 6, 1922)
 * style="vertical-align:top"|🇮🇪 Ireland – Irish Republic (to December 6, 1922)
 * colspan=2|
 * colspan=2|

Unrecognized state.
 * style="vertical-align:top"| Karelia
 * Karelian United Government (from December 20, 1920 to April 21, 1921)
 * Republic of Eastern Karelia (from April 21, 1921 to July 23, 1923)
 * Republic of Eastern Karelia (from April 21, 1921 to July 23, 1923)
 * colspan=2|
 * colspan=2|

Unrecognized state.
 * style="vertical-align:top"| Khorasan – Autonomous Government of Khorasan (from April 2, 1921 to October 6, 1921)
 * style="vertical-align:top"| Khorasan – Autonomous Government of Khorasan (from April 2, 1921 to October 6, 1921)
 * colspan=2|
 * colspan=2|

Soviet state.
 * style="vertical-align:top"| Khorezm (from April 26, 1920 to October 27, 1924)
 * Khorezm People's Soviet Republic (from April 26, 1920 to October 20, 1923)
 * Khorezm Socialist Soviet Republic (from October 20, 1923 to October 27, 1924)
 * Khorezm Socialist Soviet Republic (from October 20, 1923 to October 27, 1924)
 * colspan=2|
 * colspan=2|

Partially recognized Korean government-in-exile.
 * style="vertical-align:top"| Korea, Provisional Government of – Provisional Government of the Republic of Korea Capital-in-exile: Shanghai
 * style="vertical-align:top"| Korea, Provisional Government of – Provisional Government of the Republic of Korea Capital-in-exile: Shanghai
 * colspan=2|
 * colspan=2|

Unrecognized state.
 * style="vertical-align:top"| Kuban – Kuban People's Republic (to March 17, 1920)
 * style="vertical-align:top"| Kuban – Kuban People's Republic (to March 17, 1920)
 * colspan=2|
 * colspan=2|

Unrecognized state.
 * style="vertical-align:top"| Kurdistan – Kingdom of Kurdistan (from September 1921 to July 1925)
 * style="vertical-align:top"| Kurdistan – Kingdom of Kurdistan (from September 1921 to July 1925)
 * colspan=2|
 * colspan=2|

Unrecognized state.
 * style="vertical-align:top"| – Labin Republic (from March 2 to April 8, 1921)
 * style="vertical-align:top"| – Labin Republic (from March 2 to April 8, 1921)
 * colspan=2|
 * colspan=2|

Unrecognized state.
 * style="vertical-align:top"| Leitha – Banate of Leitha (from October 4 to November 10, 1921)
 * style="vertical-align:top"| Leitha – Banate of Leitha (from October 4 to November 10, 1921)
 * colspan=2|
 * colspan=2|

Unrecognized state.
 * style="vertical-align:top"| Lemko Republic – Lemko-Rusyn People's Republic (to March 1920)
 * style="vertical-align:top"| Lemko Republic – Lemko-Rusyn People's Republic (to March 1920)
 * colspan=2|
 * colspan=2|

Unrecognized state.
 * style="vertical-align:top"| Mirdita – Republic of Mirdita (from July 17 to November 20, 1921)
 * style="vertical-align:top"| Mirdita – Republic of Mirdita (from July 17 to November 20, 1921)
 * colspan=2|
 * colspan=2|

Partially recognized socialist republic. Under Soviet intervention from 1921 to 1924. Satellite state of the Soviet Union from November 26, 1924.
 * style="vertical-align:top"|🇲🇳 → 🇲🇳 → 🇲🇳 Mongolia (from February 21, 1921) Capital: Niislel Khüree (renamed Ulaanbaatar in 1924)
 * Bogd Khanate of Mongolia (from February 21 to July 11, 1921)
 * Mongolian People's Government (from July 11, 1921 to November 26, 1924)
 * Mongolian People's Republic (from November 26, 1924)
 * Mongolian People's Republic (from November 26, 1924)


 * colspan=2|
 * colspan=2|

Unrecognized state. Unrecognized state.
 * style="vertical-align:top"| North Ingria – Republic of North Ingria (to December 5, 1920)
 * style="vertical-align:top"| North Ingria – Republic of North Ingria (to December 5, 1920)
 * colspan=2|
 * style="vertical-align:top"|Raqqa – Independent State of Raqqa (from August 10, 1920 to December 17, 1921)
 * style="vertical-align:top"|Raqqa – Independent State of Raqqa (from August 10, 1920 to December 17, 1921)
 * style="vertical-align:top"|Raqqa – Independent State of Raqqa (from August 10, 1920 to December 17, 1921)
 * colspan=2|
 * colspan=2|

Unrecognized state.
 * style="vertical-align:top"| Rhineland – Rhenish Republic (from October 21, 1923 to November 26, 1924)
 * style="vertical-align:top"| Rhineland – Rhenish Republic (from October 21, 1923 to November 26, 1924)
 * colspan=2|
 * colspan=2|

Unrecognized state.
 * style="vertical-align:top"| Rif – Confederal Republic of the Tribes of the Rif (from September 18, 1921 to May 27, 1926)
 * style="vertical-align:top"| Rif – Confederal Republic of the Tribes of the Rif (from September 18, 1921 to May 27, 1926)
 * colspan=2|
 * colspan=2|

Unrecognized state.
 * style="vertical-align:top"| Southern Karelia – Olonets Government of Southern Karelia (from May to December 20, 1920)
 * style="vertical-align:top"| Southern Karelia – Olonets Government of Southern Karelia (from May to December 20, 1920)
 * colspan=2|
 * colspan=2|

De facto independent state not recognized by any other state.
 * style="vertical-align:top"| Syria – Arab Kingdom of Syria (to July 25, 1920)
 * style="vertical-align:top"| Syria – Arab Kingdom of Syria (to July 25, 1920)
 * colspan=2|
 * colspan=2|

Partially recognized socialist republic. Satellite state of the Soviet Union.
 * style="vertical-align:top"| → Tannu Tuva (from August 14, 1921)
 * People's Republic of Tannu Tuva (from August 14, 1921 to November 24, 1926)
 * Tuvan People's Republic (from November 24, 1926)
 * Tuvan People's Republic (from November 24, 1926)
 * colspan=2|
 * colspan=2|

Unrecognized state.
 * style="vertical-align:top"| Uhtua – Republic of Uhtua (to December 19, 1920)
 * style="vertical-align:top"| Uhtua – Republic of Uhtua (to December 19, 1920)
 * colspan=2|
 * colspan=2|

Soviet proto-state. Became part of the Soviet Union from December 30, 1922.
 * style="vertical-align:top"| Ukraine, Soviet – Ukrainian Socialist Soviet Republic (to December 30, 1922)
 * style="vertical-align:top"| Ukraine, Soviet – Ukrainian Socialist Soviet Republic (to December 30, 1922)
 * colspan=2|
 * colspan=2|


 * colspan=3|
 * }
 * }