List of sovereign states in the 1910s

This is a list of sovereign states in the 1910s, giving an overview of states around the world during the period between 1 January 1910 and 31 December 1919. It contains entries, arranged alphabetically, with information on the status and recognition of their sovereignty. It includes 94 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'':0 solid #aaa;" !width=60%|Name and capital city !width=70%|Information on status and recognition of sovereignty
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 * colspan=2|


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A

 * colspan=2|
 * colspan=2|

De facto independent state that was a de jure British protectorate (to 8 August 1919). Widely recognized independent state (from 8 August 1919).
 * style="vertical-align:top"| →  undefined – Emirate of Afghanistan
 * style="vertical-align:top"| →  undefined – Emirate of Afghanistan
 * colspan=2|
 * colspan=2|

Limited sovereignty for occupatio bellica by the Balkan League states. Recognized independent state de jure from 29 July 1913. De facto Italian protectorate from 23 June 1917.
 * style="vertical-align:top"| → 🇦🇱 Albania (from 28 November 1912)
 * Independent Albania (from 12 November 1912 to 21 February 1914)
 * Principality of Albania (from 21 February 1914)
 * Principality of Albania (from 21 February 1914)
 * colspan=2|
 * colspan=2|

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

Widely recognized state.
 * style="vertical-align:top"|Angoche – Angoche Sultanate (to 1910)
 * style="vertical-align:top"|Angoche – Angoche Sultanate (to 1910)
 * colspan=2|
 * colspan=2|

Widely recognized independent state
 * style="vertical-align:top"| 🇦🇷 Argentina – Argentine Republic
 * style="vertical-align:top"| 🇦🇷 Argentina – Argentine Republic
 * colspan=2|
 * colspan=2|

Widely recognized state.
 * style="vertical-align:top"| Armenia – Republic of Armenia (from 28 May 1918)
 * style="vertical-align:top"| Armenia – Republic of Armenia (from 28 May 1918)
 * colspan=2|
 * colspan=2|

Widely recognized independent state
 * style="vertical-align:top"| Asir – Idrisid Emirate of Asir (from 3 August 1917)
 * style="vertical-align:top"| Asir – Idrisid Emirate of Asir (from 3 August 1917)
 * colspan=2|
 * colspan=2|

Widely recognized state.
 * style="vertical-align:top"| Aussa – Sultanate of Aussa
 * style="vertical-align:top"| Aussa – Sultanate of Aussa
 * colspan=2|
 * colspan=2|

Widely recognized independent state. Australia is autonomous but still dependent from the United Kingdom. Australia had two external territories:
 * style="vertical-align:top"|🇦🇺 Australia – Commonwealth of Australia (Dominion of the British Empire)
 * style="vertical-align:top"|🇦🇺 Australia – Commonwealth of Australia (Dominion of the British Empire)
 * Territory of New Guinea (League of Nations Mandate from 1914)
 * 🇦🇺 Norfolk Island (from 1 July 1914)
 * undefined
 * colspan=2|
 * colspan=2|

Widely recognized independent state.
 * style="vertical-align:top"|🇦🇹 Austria (from 12 November 1918)
 * Republic of German-Austria (from 12 November 1918 to 10 September 1919)
 * Republic of Austria (from 10 September 1919)
 * Republic of Austria (from 10 September 1919)
 * colspan=2|
 * colspan=2|

Widely recognized independent state. Austria-Hungary had one concession:
 * style="vertical-align:top"| Austria-Hungary – Austro-Hungarian Monarchy (to 31 October 1918) Capital: Vienna and Budapest
 * style="vertical-align:top"| Austria-Hungary – Austro-Hungarian Monarchy (to 31 October 1918) Capital: Vienna and Budapest
 * Tientsin (to 14 August 1917)
 * colspan=2|
 * colspan=2|

Widely recognized state.
 * style="vertical-align:top"| Azerbaijan – Azerbaijan Democratic Republic (from 28 May 1918) Capital: Ganja (to September, 1918), Baku (from September, 1918)
 * style="vertical-align:top"| Azerbaijan – Azerbaijan Democratic Republic (from 28 May 1918) Capital: Ganja (to September, 1918), Baku (from September, 1918)
 * colspan=2|
 * colspan=2|


 * colspan=3|
 * colspan=3|

B

 * colspan=2|
 * colspan=2|

Widely recognized state. Belgium had one colony and one concession:
 * style="vertical-align:top"|🇧🇪 Belgium – Kingdom of Belgium
 * style="vertical-align:top"|🇧🇪 Belgium – Kingdom of Belgium
 * Belgian Congo (Colony)
 * 🇧🇪 Ruanda-Urundi (League of Nations Mandate)
 * 🇧🇪 Tientsin (Concession)
 * colspan=2|
 * colspan=2|

Widely recognized state.
 * style="vertical-align:top"|Bhutan – Kingdom of Bhutan (to January 8, 1910)
 * style="vertical-align:top"|Bhutan – Kingdom of Bhutan (to January 8, 1910)
 * colspan=2|
 * colspan=2|

Widely recognized state.
 * style="vertical-align:top"|🇧🇴 Bolivia – Republic of Bolivia
 * style="vertical-align:top"|🇧🇴 Bolivia – Republic of Bolivia
 * colspan=2|
 * colspan=2|

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

Widely recognized state.
 * style="vertical-align:top"| Bulgaria – Tsardom of Bulgaria
 * style="vertical-align:top"| Bulgaria – Tsardom of Bulgaria
 * colspan=2|
 * colspan=2|


 * colspan=3|
 * colspan=3|

C

 * colspan=2|
 * colspan=2|

Widely recognized state. Canada is autonomous but still dependent from the United Kingdom.
 * style="vertical-align:top"|🇨🇦 Canada – Dominion of Canada (Dominion of the British Empire)
 * style="vertical-align:top"|🇨🇦 Canada – Dominion of Canada (Dominion of the British Empire)
 * colspan=2|
 * colspan=2|

Widely recognized state.
 * style="vertical-align:top"|🇨🇱 Chile – Republic of Chile
 * style="vertical-align:top"|🇨🇱 Chile – Republic of Chile
 * colspan=2|
 * colspan=2|


 * style="vertical-align:top"| → →  →  China
 * Great Qing (to February 12, 1912)
 * Republic of China (from January 1, 1912 to December 12, 1915)
 * Empire of China (from December 12, 1915 to June 6, 1916)
 * Republic of China (from June 6, 1916)
 * Republic of China (from June 6, 1916)

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

Widely recognized state.
 * style="vertical-align:top"|🇨🇴 Colombia – Republic of Colombia
 * style="vertical-align:top"|🇨🇴 Colombia – Republic of Colombia
 * colspan=2|
 * colspan=2|

Widely recognized state.
 * style="vertical-align:top"| Costa Rica– Republic of Costa Rica
 * style="vertical-align:top"| Costa Rica– Republic of Costa Rica
 * colspan=2|
 * colspan=2|

De jure autonomous state of the Ottoman Empire to December 1, 1913. De facto unilaterally annexed by Greece.
 * style="vertical-align:top"| Cretan State – Cretan State (de jure to December 1, 1913)
 * style="vertical-align:top"| Cretan State – Cretan State (de jure to December 1, 1913)
 * colspan=2|
 * colspan=2|

Widely recognized state.
 * style="vertical-align:top"| undefined – Republic of Cuba
 * style="vertical-align:top"| undefined – Republic of Cuba
 * colspan=2|
 * colspan=2|

Widely recognized state.
 * style="vertical-align:top"| Czechoslovakia – Czechoslovak Republic (from October 28, 1918)
 * style="vertical-align:top"| Czechoslovakia – Czechoslovak Republic (from October 28, 1918)
 * colspan=3|
 * colspan=3|

D

 * colspan=2|
 * colspan=2|

Widely recognized state.
 * style="vertical-align:top"|Dar al Kuti – Sultanate of Dar Al Kuti (to 1911)
 * style="vertical-align:top"|Dar al Kuti – Sultanate of Dar Al Kuti (to 1911)
 * colspan=2|
 * colspan=2|

Widely recognized state.
 * style="vertical-align:top"| Darfur – Sultanate of Darfur (to 1916)
 * style="vertical-align:top"| Darfur – Sultanate of Darfur (to 1916)
 * colspan=2|
 * colspan=2|

Widely recognized state. Denmark had one colony and one dependency:
 * style="vertical-align:top"|🇩🇰 Denmark – Kingdom of Denmark
 * style="vertical-align:top"|🇩🇰 Denmark – Kingdom of Denmark
 * 🇩🇰 Danish West Indies (Colony to March 31, 1917)
 * 🇩🇰 Greenland Territory)
 * 🇮🇸 Iceland (Dependency to December 1, 1918)
 * colspan=2|
 * colspan=2|

Widely recognized state. Under United States military occupation from May 5, 1916.
 * style="vertical-align:top"|🇩🇴 Dominican Republic – Second Dominican Republic
 * style="vertical-align:top"|🇩🇴 Dominican Republic – Second Dominican Republic
 * colspan=2|
 * colspan=2|


 * colspan=3|
 * colspan=3|

E

 * colspan=2|
 * colspan=2|

Widely recognized state.
 * style="vertical-align:top"|🇪🇨 Ecuador – Republic of Ecuador
 * style="vertical-align:top"|🇪🇨 Ecuador – Republic of Ecuador
 * colspan=2|
 * colspan=2|

Widely recognized state.
 * style="vertical-align:top"| → 🇸🇻 El Salvador – Republic of El Salvador
 * style="vertical-align:top"| → 🇸🇻 El Salvador – Republic of El Salvador
 * colspan=2|
 * colspan=2|

Widely recognized state.
 * style="vertical-align:top"| Estonia (from February 24, 1918)
 * Republic of Estonia (from February 24, 1918)
 * Commune of the Working People of Estonia (from November 29, 1918 to June 5, 1919)
 * Commune of the Working People of Estonia (from November 29, 1918 to June 5, 1919)
 * colspan=2|
 * colspan=2|

Widely recognized state.
 * style="vertical-align:top"| undefined – Ethiopian Empire
 * style="vertical-align:top"| undefined – Ethiopian Empire
 * colspan=2|
 * colspan=2|


 * colspan=3|
 * colspan=3|

F

 * colspan=2|
 * colspan=2|

Widely recognized state.
 * style="vertical-align:top"| → 🇫🇮 & Finland (from 6 December 1917)
 * Kingdom of Finland (from 6 December 1917 to 17 July 1919)
 * Republic of Finland (from 17 July 1919)
 * Finnish Socialist Workers' Republic (from 29 January to 5 May 1918)
 * Finnish Socialist Workers' Republic (from 29 January to 5 May 1918)
 * colspan=2|
 * colspan=2|

Widely recognized state. The following are colonies, concessions and protectorates of France:
 * style="vertical-align:top"|🇫🇷 France – French Republic
 * style="vertical-align:top"|🇫🇷 France – French Republic
 * 🇫🇷 French Algeria (de jure Department of Metropolitan France, de facto Colony)
 * 🇫🇷 Territory of Cameroun (League of Nations Mandate, from 20 July 1916 (de facto))
 * 🇫🇷 French Comoros (Protectorate to 23 February 1914)
 * 🇫🇷 French Congo (Colony to 15 January 1910)
 * 🇫🇷 French Equatorial Africa (Federation of colonies from 15 January 1910)
 * 🇫🇷 French Guiana (Colony)
 * 🇫🇷 French India (Colony)
 * French Indochina (Federation of colonies)
 * 🇫🇷 French Madagascar (Colony, includes Comoros from 23 February 1914)
 * French Morocco (Protectorate from 30 March 1912)
 * 🇫🇷 French Oceania (Protectorate)
 * 🇫🇷 French Somaliland (Colony)
 * French Tunisia (Protectorate)
 * 🇫🇷 French West Africa (Federation of colonies)
 * 🇫🇷 Guadeloupe (Colony)
 * 🇫🇷 Hankou (Concession)
 * 🇫🇷 Martinique (Colony)
 * 🇳🇨 New Caledonia (Colony)
 * 🇫🇷 Réunion (Colony)
 * 🇫🇷 Saint Barthélemy (Colony)
 * 🇫🇷 Saint Martin (Colony)
 * Saint Pierre and Miquelon (Colony)
 * 🇫🇷 Shanghai (Concession)
 * 🇫🇷 Tientsin (Concession)
 * 🇫🇷 Ubangi-Shari (Colony to 15 January 1910; from 12 April 1916)
 * Wallis and Futuna (Protectorate)
 * colspan=2|
 * colspan=2|


 * colspan=3|
 * colspan=3|

G

 * colspan=2|
 * colspan=2|

Widely recognized state. Immediately recognized by Germany and the Ottoman Empire.
 * style="vertical-align:top"| Georgia – Democratic Republic of Georgia (from May 26, 1918)
 * style="vertical-align:top"| Georgia – Democratic Republic of Georgia (from May 26, 1918)
 * colspan=2|
 * colspan=2|

Widely recognized state. The following are colonies, concessions and protectorates of Germany:
 * style="vertical-align:top"| → Germany
 * German Empire (to November 9, 1918)
 * German Reich (from November 9, 1918)
 * German Reich (from November 9, 1918)
 * German East Africa (Colony to November 25, 1918)
 * German Kiautschou (Concession to November 7, 1914)
 * German New Guinea (Protectorate to June 28, 1919)
 * German Samoa (Protectorate)
 * German South-West Africa (Colony to June 28, 1919)
 * Hankou (Concession to August 1917)
 * Kamerun (Colony to July 20, 1916)
 * Tientsin (Concession to August 1917)
 * Togoland (Protectorate to August 26, 1914)
 * colspan=2|
 * colspan=2|

Widely recognized state.
 * style="vertical-align:top"| undefined – Kingdom of Greece
 * style="vertical-align:top"| undefined – Kingdom of Greece
 * colspan=2|
 * colspan=2|

Widely recognized state.
 * style="vertical-align:top"|🇬🇹 Guatemala – Republic of Guatemala
 * style="vertical-align:top"|🇬🇹 Guatemala – Republic of Guatemala
 * colspan=2|
 * colspan=2|


 * colspan=3|
 * colspan=3|

H

 * colspan=2|
 * colspan=2|

Widely recognized state.
 * style="vertical-align:top"| Ha'il – Emirate of Jabal Shammar
 * style="vertical-align:top"| Ha'il – Emirate of Jabal Shammar
 * colspan=2|
 * colspan=2|

Widely recognized state. Under United States military occupation from July 28, 1915.
 * style="vertical-align:top"|🇭🇹 Haiti – Republic of Haiti
 * style="vertical-align:top"|🇭🇹 Haiti – Republic of Haiti
 * colspan=2|
 * colspan=2|

Widely recognized state.
 * style="vertical-align:top"| → Hejaz – Hashemite Kingdom of Hejaz (from June 10, 1916)
 * style="vertical-align:top"| → Hejaz – Hashemite Kingdom of Hejaz (from June 10, 1916)
 * colspan=2|
 * colspan=2|

Widely recognized state.
 * style="vertical-align:top"|🇭🇳 Honduras – Republic of Honduras
 * style="vertical-align:top"|🇭🇳 Honduras – Republic of Honduras
 * colspan=2|
 * colspan=2|

Unrecognized state from August 1 to 8, 1919.
 * style="vertical-align:top"| → →  →  Hungary (from November 16, 1918)
 * Hungarian People's Republic (from November 16, 1918 to March 21, 1919)
 * Hungarian Soviet Republic (from March 21 to August 1, 1919)
 * Hungarian People's Republic (from August 1 to 8, 1919)
 * Hungarian Republic (from August 8, 1919)
 * Hungarian Republic (from August 8, 1919)
 * colspan=2|
 * colspan=2|


 * colspan=3|
 * colspan=3|

I

 * colspan=2|
 * colspan=2|

Widely recognized independent state under a personal union with Denmark. Still dependent from Denmark.
 * style="vertical-align:top"| undefined – Kingdom of Iceland (from December 1, 1918)
 * style="vertical-align:top"| undefined – Kingdom of Iceland (from December 1, 1918)
 * colspan=2|
 * colspan=2|

Widely recognized state. 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, from November 5, 1911)
 * Italian Eritrea (Colony)
 * Italian Somaliland (Colony)
 * Italian Tripolitania (Colony, from November 5, 1911)
 * Shanghai (Concession)
 * Tientsin (Concession)
 * colspan=2|
 * colspan=2|


 * colspan=3|
 * colspan=3|

J

 * colspan=2|
 * colspan=2|

Widely recognized state. Japan had sovereignty over the following protectorates, 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)
 * Korea (Protectorade to August 29, 1910)
 * Japanese Korea (Chōsen) (Dependency from August 29, 1910)
 * Karafuto (Dependency)
 * Kwantung (Concession)
 * Shashi (Concession)
 * Suzhou (Concession)
 * Taiwan (Dependency)
 * Tientsin (Concession)

Japan administered one League of Nations mandate:
 * South Seas Mandate (LON mandate from June 28, 1919)
 * colspan=2|
 * colspan=2|


 * colspan=3|
 * colspan=3|

L

 * colspan=2|
 * colspan=2|

Capital: Riga, Dvinsk, and Rezhitsa Widely recognized state.
 * style="vertical-align:top"|🇱🇻 & Latvia (disputed between two governments) (from November 18, 1918)
 * style="vertical-align:top"|🇱🇻 & Latvia (disputed between two governments) (from November 18, 1918)
 * 🇱🇻 Republic of Latvia (from November 18, 1918)
 * Latvian Socialist Soviet Republic (from December 17, 1918)
 * colspan=2|
 * colspan=2|

Widely recognized state.
 * style="vertical-align:top"|🇱🇷 Liberia – Republic of Liberia
 * style="vertical-align:top"|🇱🇷 Liberia – Republic of Liberia
 * colspan=2|
 * colspan=2|

Widely recognized state.
 * style="vertical-align:top"|🇱🇮 Liechtenstein – Principality of Liechtenstein
 * style="vertical-align:top"|🇱🇮 Liechtenstein – Principality of Liechtenstein
 * colspan=2|
 * colspan=2|

Widely recognized state.
 * style="vertical-align:top"| → &  Lithuania (from February 16, 1918)
 * Kingdom of Lithuania (from March 23 to November 2, 1918)
 * Lithuanian Soviet Socialist Republic (from December 16, 1918, to February 27, 1919)
 * Republic of Lithuania (from February 16, 1918)
 * Republic of Lithuania (from February 16, 1918)
 * colspan=2|
 * colspan=2|

Widely recognized state. Limited sovereignty for occupatio bellica.
 * 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 state.
 * style="vertical-align:top"| Mbundaland – Mbunda Kingdom (to 1917)
 * style="vertical-align:top"| Mbundaland – Mbunda Kingdom (to 1917)
 * colspan=2|
 * colspan=2|
 * colspan=2|

Widely recognized state. Mexico had one territory:
 * style="vertical-align:top"|🇲🇽 Mexico
 * Porfiriato (to May 25, 1911)
 * United Mexican States (from February 5, 1917)
 * United Mexican States (from February 5, 1917)
 * 🇲🇽 Isla de la Pasión (Uninhabited territory)
 * colspan=2|
 * colspan=2|

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

Widely recognized state. Still dependent from China.
 * style="vertical-align:top"| Mongolia - Great Mongolian State (from December 29, 1911) Capital: Niislel Khuree
 * style="vertical-align:top"| Mongolia - Great Mongolian State (from December 29, 1911) Capital: Niislel Khuree
 * colspan=2|
 * colspan=2|

Widely recognized state. Limited sovereignty for occupatio bellica to December 1, 1918.
 * style="vertical-align:top"| → Montenegro
 * Principality of Montenegro (to August 28, 1910)
 * Kingdom of Montenegro (from August 28, 1910 to November 28, 1918)
 * Kingdom of Montenegro (from August 28, 1910 to November 28, 1918)
 * colspan=2|
 * colspan=2|

De jure sovereign state under French and Spanish protectorate from March 30, 1912.
 * style="vertical-align:top"|🇲🇦 Morocco – Sultanate of Morocco (to March 30, 1912)
 * style="vertical-align:top"|🇲🇦 Morocco – Sultanate of Morocco (to March 30, 1912)
 * colspan=2|
 * colspan=2|

Widely recognized state.
 * style="vertical-align:top"|  Mountain Republic - Mountainous Republic of the Northern Caucasus (from March 6, 1917)
 * style="vertical-align:top"|  Mountain Republic - Mountainous Republic of the Northern Caucasus (from March 6, 1917)
 * 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|
 * colspan=3|

N

 * colspan=2|
 * colspan=2|

Widely recognized state.
 * style="vertical-align:top"| → Riyadh / Nejd
 * Emirate of Riyadh (to 1913)
 * Emirate of Nejd and Hasa (from 1913)
 * Emirate of Nejd and Hasa (from 1913)
 * colspan=2|
 * colspan=2|

Widely recognized independent state. 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 state. Newfoundland is autonomous but still dependent from the United Kingdom.
 * style="vertical-align:top"| Newfoundland – Dominion of Newfoundland
 * style="vertical-align:top"| Newfoundland – Dominion of Newfoundland
 * colspan=2|
 * colspan=2|

Widely recognized state. New Zealand is autonomous but still dependent from the United Kingdom. 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)
 * colspan=2|
 * colspan=2|

Widely recognized state. Under United States military occupation from 1912.
 * style="vertical-align:top"|🇳🇮 Nicaragua – Republic of Nicaragua
 * style="vertical-align:top"|🇳🇮 Nicaragua – Republic of Nicaragua
 * colspan=2|
 * colspan=2|

Widely recognized state.
 * style="vertical-align:top"|Nri – Kingdom of Nri (to 1911)
 * style="vertical-align:top"|Nri – Kingdom of Nri (to 1911)
 * colspan=2|
 * colspan=2|

Widely recognized state. Norway had three uninhabited possessions:
 * style="vertical-align:top"|🇳🇴 Norway – Kingdom of Norway
 * style="vertical-align:top"|🇳🇴 Norway – Kingdom of Norway
 * 🇳🇴 Bouvet Island
 * 🇳🇴 Peter I Island
 * 🇳🇴 Sverdrup Islands
 * colspan=2|
 * colspan=2|


 * colspan=3|
 * colspan=3|

O

 * colspan=2|
 * colspan=2|

Widely recognized state. Ottoman Empire had one protectorate:
 * style="vertical-align:top"| Ottoman Empire – Sublime Ottoman State
 * style="vertical-align:top"| Ottoman Empire – Sublime Ottoman State
 * North Caucasian Emirate (from September 1919)
 * colspan=2|
 * colspan=2|

Widely recognized state.
 * style="vertical-align:top"|Ouaddai – Sultanate of Ouaddai (to 1912)
 * style="vertical-align:top"|Ouaddai – Sultanate of Ouaddai (to 1912)
 * colspan=2|
 * colspan=2|


 * colspan=3|
 * colspan=3|

P

 * colspan=2|
 * colspan=2|

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

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

Widely recognized state.
 * style="vertical-align:top"| Persia – Persian Empire
 * style="vertical-align:top"| Persia – Persian Empire
 * colspan=2|
 * colspan=2|

Widely recognized independent state.
 * style="vertical-align:top"|🇵🇪 Peru – Peruvian Republic
 * style="vertical-align:top"|🇵🇪 Peru – Peruvian Republic
 * colspan=2|
 * colspan=2|

Client / Puppet state of Germany until November 11, 1918. Widely recognized independent state from November 11, 1918.
 * style="vertical-align:top"|🇵🇱 Poland (from January 14, 1917)
 * Kingdom of Poland (from January 14, 1917 to November 11, 1918)
 * Republic of Poland (from November 11, 1918)
 * Republic of Poland (from November 11, 1918)
 * colspan=2|
 * colspan=2|

Widely recognized independent state. The following are colonies, vassal state and possession of Portugal:
 * style="vertical-align:top"|🇵🇹 → 🇵🇹 Portugal
 * Kingdom of Portugal (to October 5, 1910)
 * Portuguese Republic (from October 5, 1910)
 * Portuguese Republic (from October 5, 1910)
 * 🇵🇹 → 🇵🇹 Portuguese Cape Verde (Colony)
 * Kongo (Vassal state to 1914)
 * 🇵🇹 → 🇵🇹 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 state.
 * style="vertical-align:top"| undefined – Kingdom of Romania
 * style="vertical-align:top"| undefined – Kingdom of Romania
 * colspan=2|
 * colspan=2|

Widely recognized state. Russia had three protectorates, one concession and one autonomous grand duchy:
 * style="vertical-align:top"| → →  Russia
 * Russian Empire (to March 15, 1917)
 * Russian Provisional Government (from March 15 to September 14, 1917)
 * Russian Republic (from September 14, 1917 to January 18, 1918)
 * Russian Democratic Federal Republic (from January 18, 1918 to January 19, 1918)
 * Russian Socialist Federative Soviet Republic (from January 25, 1918)
 * Russian Socialist Federative Soviet Republic (from January 25, 1918)
 * Bukhara (Protectorate)
 * Khiva (Protectorate)
 * Uryankhay (Protectorate from April 17, 1914)
 * Tientsin (Concession)
 * Finland (Autonomous grand duchy to December 6, 1917)
 * colspan=2|
 * colspan=2|


 * colspan=3|
 * colspan=3|

S

 * colspan=2|
 * colspan=2|

Widely recognized 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 state. Limited sovereignty for occupatio bellica to December 1, 1918.
 * style="vertical-align:top"| → Serbia / Serbs, Croats and Slovenes
 * Kingdom of Serbia (to December 1, 1918)
 * Kingdom of Serbs, Croats and Slovenes (from December 1, 1918)
 * Kingdom of Serbs, Croats and Slovenes (from December 1, 1918)
 * colspan=2|
 * colspan=2|

Widely recognized state.
 * style="vertical-align:top"| Setul Mambang Segara – Kingdom of Setul Mambang Segara (to 1916)
 * style="vertical-align:top"| Setul Mambang Segara – Kingdom of Setul Mambang Segara (to 1916)
 * colspan=2|
 * colspan=2|

Widely recognized state.
 * style="vertical-align:top"|🇹🇭 → 🇹🇭 → Siam – Kingdom of Siam
 * style="vertical-align:top"|🇹🇭 → 🇹🇭 → Siam – Kingdom of Siam
 * colspan=2|
 * colspan=2|

Widely recognized independent state. South Africa is autonomous but still dependent from the United Kingdom. South Africa has one mandate:
 * style="vertical-align:top"|🇿🇦 → undefined – Union of South Africa (Dominion of the British Empire)  (from May 31, 1910)
 * style="vertical-align:top"|🇿🇦 → undefined – Union of South Africa (Dominion of the British Empire)  (from May 31, 1910)
 * 🇿🇦 → 🇿🇦 South West Africa (League of Nations Mandate from 9 July 1915)
 * colspan=2|
 * colspan=2|

Widely recognized state. Spain had three colonies, one protectorate and two possessions:
 * style="vertical-align:top"|🇪🇸 Spain – Kingdom of Spain
 * style="vertical-align:top"|🇪🇸 Spain – Kingdom of Spain
 * 🇪🇸 Elobey, Annobón and Corisco (Colony)
 * 🇪🇸 Fernando Poo (Colony)
 * 🇪🇸 Río Muni (Colony)
 * 🇲🇦 Spanish Morocco (Protectorate from November 27, 1912)
 * 🇪🇸 Spanish North Africa (Possession)
 * Spanish Sahara (Possession)
 * colspan=2|
 * colspan=2|

Widely recognized state.
 * style="vertical-align:top"| Sulu – Sultanate of Sulu (to 1915)
 * style="vertical-align:top"| Sulu – Sultanate of Sulu (to 1915)
 * colspan=2|
 * colspan=2|

Widely recognized state.
 * style="vertical-align:top"|🇸🇪 Sweden – Kingdom of Sweden
 * style="vertical-align:top"|🇸🇪 Sweden – Kingdom of Sweden
 * colspan=2|
 * colspan=2|

Widely recognized state.
 * 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 (from 1912)
 * style="vertical-align:top"| Tibet (from 1912)
 * colspan=2|
 * colspan=2|

Widely recognized independent state.
 * style="vertical-align:top"| Transcaucasia – Transcaucasian Democratic Federative Republic (from February 22 to May 28, 1918)
 * style="vertical-align:top"| Transcaucasia – Transcaucasian Democratic Federative Republic (from February 22 to May 28, 1918)
 * colspan=2|
 * colspan=2|


 * colspan=3|
 * colspan=3|

U
Widely recognized state. The following are colonies, concessions, territories, dependencies and protectorates of the United Kingdom:
 * style="vertical-align:top"|  undefined – United Kingdom of Great Britain and Ireland
 * style="vertical-align:top"|  undefined – United Kingdom of Great Britain and Ireland
 * Aden (Protectorate)
 * Afghanistan (Protectorate under Treaty of Gandamak to August 8, 1919)
 * Amoy (Concession)
 * Anglo-Egyptian Sudan (Condominium of the United Kingdom and the Khedivate/Sultanate of Egypt)
 * Ascension Island (Possession)
 * Bahama Islands (Crown colony)
 * Bahrain (Protectorate)
 * Baker Island (Uninhabited possession)
 * 🇧🇧 Barbados (Crown colony)
 * Barotziland–North-Western Rhodesia (Protectorate to August 17, 1911)
 * Basutoland (Crown colony)
 * Bechuanaland (Protectorate)
 * Bermuda (Crown colony)
 * Bhutan (Independent state under Treaty of Punakha from January 8, 1910)
 * British Ceylon (Crown colony)
 * 🇨🇾 British Cyprus (Protectorate to 1914; Unilaterally annexed military occupation from 1914)
 * British East Africa (Protectorate)
 * British Guiana (Colony)
 * British Honduras (Crown colony)
 * 🇭🇰 British Hong Kong (Crown colony)
 * 🇯🇲 British Jamaica (Crown colony)
 * British Leeward Islands (Crown colony)
 * 🇲🇺 British Mauritius (Crown colony)
 * British Somaliland (Crown colony)
 * 🇹🇹 British Trinidad and Tobago (Crown colony)
 * British Western Pacific Territories (Crown colony)
 * British Windward Islands (Crown colony)
 * Brunei (Protectorate)
 * Cape Colony (Colony to May 31, 1910)
 * Colony of Natal (Colony to May 31, 1910)
 * Egypt (Protectorate from December 18, 1914)
 * Falkland Islands (Crown colony)
 * Federated Malay States (Protectorate)
 * Gambia (Crown colony and protectorate)
 * Gibraltar (Crown colony)
 * Gold Coast (Crown colony)
 * Graham Land (Uninhabited possession)
 * Guernsey (Crown dependency)
 * Hankou (Concession)
 * Heard Island and McDonald Islands (Uninhabited possession)
 * undefined - Indian Empire (Crown colony)
 * 🇮🇲 Isle of Man (Crown dependency)
 * Jarvis Island (Uninhabited possession)
 * 🇯🇪 Jersey (Crown dependency)
 * Jiujiang (Concession)
 * 🇰🇼 Kuwait (Protectorate)
 * Maldive Islands (Protectorate)
 * 🇲🇹 Malta (Crown colony)
 * 🇳🇵 Nepal (Protectorate)
 * 🇳🇬 Nigeria (Crown colony and protectorate from January 1, 1914)
 * North Borneo (Protectorate)
 * Northern Nigeria (Protectorate to January 1, 1914)
 * North-Eastern Rhodesia (Protectorate to August 17, 1911)
 * Northern Rhodesia (Colony from August 17, 1911)
 * → Nyasaland (Protectorate)
 * Orange River Colony (Colony to May 31, 1910)
 * Qatar (Protectorate from November 3, 1916)
 * Rhodesia (Company rule by British South Africa Company)
 * Saint Helena (Crown colony)
 * undefined (Protectorate)
 * 🇸🇨 Seychelles (Crown colony)
 * → Sierra Leone (Crown colony and protectorate)
 * → Sikkim (Independent state under the Treaty of Tumlong)
 * South Orkney Islands (Uninhabited possession)
 * South Shetland Islands (Uninhabited possession)
 * Southern Nigeria (Protectorate to January 1, 1914)
 * Straits Settlements (Crown colony)
 * Suez Canal Zone (Crown colony)
 * Swaziland (Protectorate)
 * Tanganyika Territory (League of Nations Mandate from 1916)
 * Tientsin (Concession)
 * Transvaal Colony (Colony to May 31, 1910)
 * Tristan da Cunha (Crown colony)
 * Trucial States (Protectorate)
 * Unfederated Malay States
 * Johor (Protectorate from 1914)
 * Kedah (Protectorate)
 * Kelantan (Protectorate)
 * Perlis (Protectorate)
 * Terengganu (Protectorate)
 * 🇺🇬 Uganda (Protectorate)
 * Union Islands (Protectorate until 29 February 1916 to become Colony)
 * Victoria Land (Uninhabited possession)
 * Weihai (Concession)
 * Zanzibar (Protectorate)
 * Zhenjiang (Concession)
 * colspan=2|
 * colspan=2|

Widely recognized state. The following are 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 (District to August 24, 1912; Territory from August 24, 1912)
 * 🇺🇸 → 🇺🇸 American Samoa (Territory)
 * 🇺🇸 Arizona (Territory to February 14, 1912)
 * 🇺🇸 → 🇺🇸 Bajo Nuevo Bank (Uninhabited territory)
 * 🇺🇸 → 🇺🇸 Corn Islands (Territory)
 * 🇺🇸 → 🇺🇸 Guam (Territory)
 * Hawaii (Territory)
 * 🇺🇸 → 🇺🇸 Howland Island (Uninhabited territory)
 * 🇺🇸 → 🇺🇸 Johnston Atoll (Uninhabited territory)
 * 🇺🇸 → 🇺🇸 Kingman Reef (Uninhabited territory)
 * 🇺🇸 → 🇺🇸 Middlebrook Island (Uninhabited territory)
 * 🇺🇸 → 🇺🇸 Midway Atoll (Uninhabited territory)
 * 🇺🇸 → 🇺🇸 Navassa Island (Uninhabited territory)
 * 🇺🇸 New Mexico (Territory to January 6, 1912)
 * 🇺🇸 → 🇺🇸 Palmyra Atoll (Territory)
 * 🇺🇸 → 🇺🇸 → Panama Canal Zone (Territory)
 * 🇺🇸 → 🇺🇸 Philippine Islands (Territory)
 * 🇵🇷 → 🇵🇷 Puerto Rico (Territory)
 * 🇺🇸 → 🇺🇸 Quita Sueño Bank (Uninhabited territory)
 * 🇺🇸 → 🇺🇸 Roncador Bank (Uninhabited territory)
 * 🇺🇸 → 🇺🇸 Serrana Bank (Uninhabited territory)
 * 🇺🇸 → 🇺🇸 Serranilla Bank (Uninhabited territory)
 * 🇺🇸 → 🇺🇸 Swan Islands (Uninhabited territory)
 * 🇺🇸 → 🇺🇸 U.S. Virgin Islands (Territory from March 31, 1917)
 * 🇺🇸 → 🇺🇸 Wake Island (Uninhabited territory)
 * colspan=2|
 * colspan=2|

Widely recognized state.
 * style="vertical-align:top"| Upper Asir - Sheikdom of Upper Asir (from August 1916)
 * style="vertical-align:top"| Upper Asir - Sheikdom of Upper Asir (from August 1916)
 * colspan=2|
 * colspan=2|

Widely recognized state.
 * colspan=3|
 * style="vertical-align:top"|🇺🇾 Uruguay – Eastern Republic of Uruguay
 * 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 state.
 * 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 (from October 30, 1918)
 * style="vertical-align:top"| Yemen – Mutawakkilite Kingdom of Yemen (from October 30, 1918)
 * colspan=2|
 * colspan=2|


 * colspan=3|
 * colspan=3|

States claiming sovereignty
Unrecognized state.
 * style="vertical-align:top"| Alash – Alash Autonomy (from December 13, 1917)
 * style="vertical-align:top"| Alash – Alash Autonomy (from December 13, 1917)
 * colspan=2|
 * colspan=2|

Unrecognized socialist state created during the German Revolution after the World War I.
 * style="vertical-align:top"| Alsace-Lorraine – Alsace-Lorraine Soviet Republic (from November 10 to 22, 1918)
 * style="vertical-align:top"| Alsace-Lorraine – Alsace-Lorraine Soviet Republic (from November 10 to 22, 1918)
 * colspan="2" |
 * colspan="2" |

Unrecognized state.
 *  Altai – Confederated Republic of Altai (from 1917)
 *  Altai – Confederated Republic of Altai (from 1917)
 * colspan=2|
 * colspan=2|

Unrecognized state.
 * style="vertical-align:top"| Aras – Republic of Aras (from December 1918 to June 1919)
 * style="vertical-align:top"| Aras – Republic of Aras (from December 1918 to June 1919)
 * colspan=2|
 * colspan=2|

Unrecognized state. Client state of the Hungarian People's Republic to November 1918. Client state of the Kingdom of Serbs, Croats and Slovenes from November 1918.
 * style="vertical-align:top"| Banat Republic (from October 31, 1918 to February 20, 1919)
 * style="vertical-align:top"| Banat Republic (from October 31, 1918 to February 20, 1919)
 * colspan=2|
 * colspan=2|

Unrecognized socialist state created during the German Revolution after the World War I.
 * style="vertical-align:top"| → Bavaria
 * People's State of Bavaria (from November 8, 1918 to April 6, 1919)
 * Bavarian Soviet Republic (from April 6 to May 3, 1919)
 * Bavarian Soviet Republic (from April 6 to May 3, 1919)
 * colspan=2|
 * colspan=2|

Partially-recognized state from 1918 to 1919. Puppet/Buffer State of Soviet Russia from January 1, 1919.
 * style="vertical-align:top"| → Belarus
 * Belarusian People's Republic – (from March 9 to December 1918) Capital: Minsk, Vilna, and Grodno
 * Socialist Soviet Republic of Byelorussia (from January 1 to February 17, 1919)
 * Socialist Soviet Republic of Byelorussia (from January 1 to February 17, 1919)
 * colspan=2|
 * colspan=2|

Unoccupied territory within post-World War I Germany.
 * style="vertical-align:top"| Bottleneck – Free State Bottleneck (from January 10, 1919)
 * style="vertical-align:top"| Bottleneck – Free State Bottleneck (from January 10, 1919)
 * colspan=2|
 * colspan=2|

Unrecognized socialist state created during the German Revolution after the World War I.
 * style="vertical-align:top"| Bremen – Bremen Soviet Republic (from January 10 to February 4, 1919)
 * style="vertical-align:top"| Bremen – Bremen Soviet Republic (from January 10 to February 4, 1919)
 * colspan=2|
 * colspan=2|

Unrecognized state.
 * style="vertical-align:top"| Central Albania – Republic of Central Albania (from October 16, 1913 to March 7, 1914)
 * style="vertical-align:top"| Central Albania – Republic of Central Albania (from October 16, 1913 to March 7, 1914)
 * colspan=2|
 * colspan=2|

Unrecognized state.
 * style="vertical-align:top"| Centrocaspian Dictatorship – Centro-Caspian Dictatorship (from August 1 to September 15, 1918)
 * style="vertical-align:top"| Centrocaspian Dictatorship – Centro-Caspian Dictatorship (from August 1 to September 15, 1918)
 * colspan=2|
 * colspan=2|

Client state of Germany.
 * style="vertical-align:top"| Courland and Semigallia – Duchy of Courland and Semigallia (from March 8 to September 22, 1918)
 * style="vertical-align:top"| Courland and Semigallia – Duchy of Courland and Semigallia (from March 8 to September 22, 1918)
 * colspan=2|
 * colspan=2|

Self-proclaimed autonomy of the Russian Democratic Federative Republic.
 * style="vertical-align:top"| →  Crimea
 * Crimean People's Republic (from December 1917 to January 1918)
 * Crimea – Crimean Socialist Soviet Republic (from May to June 1919)
 * Crimea – Crimean Socialist Soviet Republic (from May to June 1919)
 * colspan=2|
 * colspan=2|

Unrecognized state.
 * style="vertical-align:top"| Don – Don Republic (from May 18, 1918)
 * style="vertical-align:top"| Don – Don Republic (from May 18, 1918)
 * colspan=2|
 * colspan=2|

Unrecognized, self-declared state.
 * style="vertical-align:top"| Donbas and Kryvbas – Donets-Krivoy Rog Soviet Republic (from February 12 to March 20, 1918)
 * style="vertical-align:top"| Donbas and Kryvbas – Donets-Krivoy Rog Soviet Republic (from February 12 to March 20, 1918)
 * colspan=2|
 * colspan=2|

Unrecognized state.
 * style="vertical-align:top"| Hutsul Republic (from January 8 to June 11, 1919)
 * style="vertical-align:top"| Hutsul Republic (from January 8 to June 11, 1919)
 * colspan=2|
 * colspan=2|

Unrecognized state.
 * style="vertical-align:top"| Icaria – Free State of Icaria (from July 18 to November 1912)
 * style="vertical-align:top"| Icaria – Free State of Icaria (from July 18 to November 1912)
 * colspan=2|
 * colspan=2|

Semi-Independent state.
 * style="vertical-align:top"| Idel-Ural – Idel-Ural State (from March 1, 1918 to April 1918)
 * style="vertical-align:top"| Idel-Ural – Idel-Ural State (from March 1, 1918 to April 1918)
 * colspan=2|
 * colspan=2|

Revolutionary state.
 * style="vertical-align:top"|🇮🇪 Ireland – Irish Republic (from January 21, 1919)
 * style="vertical-align:top"|🇮🇪 Ireland – Irish Republic (from January 21, 1919)
 * colspan=2|
 * colspan=2|

Nominally-independent provisional government.
 * style="vertical-align:top"| Kars Republic – Provisional National Government of the Southwestern Caucasus (from December 1, 1918 to April 1919)
 * style="vertical-align:top"| Kars Republic – Provisional National Government of the Southwestern Caucasus (from December 1, 1918 to April 1919)
 * colspan=2|
 * colspan=2|

Unrecognized state.
 *  Kokand – Turkestan Autonomy (from November 27, 1917 to February 22, 1918)
 *  Kokand – Turkestan Autonomy (from November 27, 1917 to February 22, 1918)
 * colspan="2" |
 * colspan="2" |

Microstate.
 * style="vertical-align:top"| Komancza – Komancza Republic (from November 4, 1918 to January 24, 1919)
 * style="vertical-align:top"| Komancza – Komancza Republic (from November 4, 1918 to January 24, 1919)
 * 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 (from April 11, 1919) Capital-in-exile: Shanghai
 * style="vertical-align:top"| Korea, Provisional Government of – Provisional Government of the Republic of Korea (from April 11, 1919) Capital-in-exile: Shanghai
 * colspan=2|
 * colspan=2|

Unrecognized state.
 * style="vertical-align:top"| Kuban – Kuban People's Republic (from January 28, 1918)
 * style="vertical-align:top"| Kuban – Kuban People's Republic (from January 28, 1918)
 * colspan=2|
 * colspan=2|

Unrecognized state from December 5, 1918.
 * style="vertical-align:top"| Lemko Republic – Lemko-Rusyn People's Republic (from December 5, 1918)
 * style="vertical-align:top"| Lemko Republic – Lemko-Rusyn People's Republic (from December 5, 1918)
 * colspan=2|
 * colspan=2|

Soviet puppet state from February 17 to July 17, 1919.
 * style="vertical-align:top"| Lithuania-Byelorussia – Lithuanian-Byelorussian Soviet Socialist Republic (from February 17 to July 17, 1919) Capital: Vilnius, Minsk, and Smolensk
 * style="vertical-align:top"| Lithuania-Byelorussia – Lithuanian-Byelorussian Soviet Socialist Republic (from February 17 to July 17, 1919) Capital: Vilnius, Minsk, and Smolensk
 * colspan=2|
 * colspan=2|

Unrecognized state.
 *  Moldova – Moldavian Democratic Republic (from December 15, 1917 to December 10, 1918)
 *  Moldova – Moldavian Democratic Republic (from December 15, 1917 to December 10, 1918)
 * colspan="2" |
 * colspan="2" |

Unrecognized, self-declared independent state. Autonomy under nominal (unimplemented) Albanian sovereignty from May 17, 1914; de facto under Greek administration from October 27, 1914.
 * style="vertical-align:top"| Northern Epirus – Autonomous Republic of Northern Epirus (from February 28 to May 17, 1914)
 * style="vertical-align:top"| Northern Epirus – Autonomous Republic of Northern Epirus (from February 28 to May 17, 1914)
 * colspan=2|
 * colspan=2|

Unrecognized state.
 * style="vertical-align:top"| North Ingria – Republic of North Ingria (from January 23, 1919)
 * style="vertical-align:top"| North Ingria – Republic of North Ingria (from January 23, 1919)
 * colspan=2|
 * colspan=2|

Unrecognized state.
 * style="vertical-align:top"| Oman, Imamate of – Imamate of Oman (from 1913)
 * style="vertical-align:top"| Oman, Imamate of – Imamate of Oman (from 1913)
 * colspan=2|
 * colspan=2|

Puppet state of Soviet Russia.
 * style="vertical-align:top"| Odessa – Odessa Soviet Republic (from January 17 to March 13, 1918)
 * style="vertical-align:top"| Odessa – Odessa Soviet Republic (from January 17 to March 13, 1918)
 * colspan=2|
 * colspan=2|

Unrecognized state.
 * style="vertical-align:top"| Perloja – Republic of Perloja (from November 1918)
 * style="vertical-align:top"| Perloja – Republic of Perloja (from November 1918)
 * colspan=2|
 * colspan=2|

Puppet state of the Hungarian Soviet Republic.
 * style="vertical-align:top"| Slovakia – Slovak Soviet Republic (from June 16 to July 7, 1919)
 * style="vertical-align:top"| Slovakia – Slovak Soviet Republic (from June 16 to July 7, 1919)
 * colspan=2|
 * colspan=2|

Unrecognized provisional government.
 * style="vertical-align:top"| Slovenes, Croats and Serbs – State of Slovenes, Croats and Serbs (from October 29 to December 1, 1918)
 * style="vertical-align:top"| Slovenes, Croats and Serbs – State of Slovenes, Croats and Serbs (from October 29 to December 1, 1918)
 * colspan=2|
 * colspan=2|

De facto independent state not recognized by any other state.
 * style="vertical-align:top"| Syria – Arab Kingdom of Syria (from November 26, 1919)
 * style="vertical-align:top"| Syria – Arab Kingdom of Syria (from November 26, 1919)
 * colspan=2|
 * colspan=2|

Unrecognized state.
 * style="vertical-align:top"| Tarnobrzeg – Republic of Tarnobrzeg (from November 6, 1918, to spring 1919)
 * style="vertical-align:top"| Tarnobrzeg – Republic of Tarnobrzeg (from November 6, 1918, to spring 1919)
 * colspan=2|
 * colspan=2|

Unrecognized state.
 * style="vertical-align:top"| Tripolitania – Tripolitanian Republic (from November 16, 1918)
 * style="vertical-align:top"| Tripolitania – Tripolitanian Republic (from November 16, 1918)
 * colspan=2|
 * colspan=2|

Unrecognized state.
 * style="vertical-align:top"| Uhtua – Republic of Uhtua (from June 21, 1918)
 * style="vertical-align:top"| Uhtua – Republic of Uhtua (from June 21, 1918)
 * colspan=2|
 * colspan=2|


 * style="vertical-align:top"| Ukraine (separated into several governments)
 * Ukrainian People's Republic of Soviets (from December 25, 1917 to March 1918)
 * Ukrainian People's Republic (from January 22, 1918)
 * Ukrainian State (from April 29 to December 14, 1918)
 * West Ukrainian People's Republic (from November 1, 1918 to January 22, 1919) Capital: Lviv, Ternopil, Stanislaviv, and Zalishchyky
 * colspan=2|
 * colspan=2|
 * colspan=2|

Self-declared independent state.
 * style="vertical-align:top"| Uryankhay – Uryankhay Republic (from December 1, 1911 to April 17, 1914)
 * style="vertical-align:top"| Uryankhay – Uryankhay Republic (from December 1, 1911 to April 17, 1914)
 * colspan=2|
 * colspan=2|

Unrecognized state.
 * style="vertical-align:top"| Western Thrace – Independent Government of Western Thrace (from August 31 to October 25, 1913)
 * style="vertical-align:top"| Western Thrace – Independent Government of Western Thrace (from August 31 to October 25, 1913)
 * colspan=2|
 * colspan=2|

Unrecognized socialist state created during the German Revolution after the World War I.
 * style="vertical-align:top"| Würzburg – Würzburg Soviet Republic (from April 7 to 9, 1919)
 * style="vertical-align:top"| Würzburg – Würzburg Soviet Republic (from April 7 to 9, 1919)
 * colspan=2|
 * colspan=2|

Unrecognized state.
 * style="vertical-align:top"| Zakopane – Republic of Zakopane (from October 13 to November 16, 1918)
 * style="vertical-align:top"| Zakopane – Republic of Zakopane (from October 13 to November 16, 1918)
 * colspan=2|
 * colspan=2|


 * colspan=3|
 * colspan=3|