| 释义 |
- Sovereign states A B C D E F G H I J L M N O P R S U V Y
- Other states
- League of Nations Mandates
- References
{{List of sovereign states strapline|1921}}{{TOC right}}Sovereign statesA- {{Flagicon image|Red flag.svg}} Abkhazia - Socialist Soviet Republic of Abkhazia {{small|(from March 31)}}
- {{Flagicon image|Flag of Afghanistan (1919-1928).svg}} Afghanistan - Emirate of Afghanistan
- {{Flagicon image|Flag of Albania 1920.svg}} Albania - Principality of Albania
- {{Flag|Andorra}} - Principality of Andorra
- {{Flag|Argentina}} - Argentine Republic
- {{Flagicon image|Red flag.svg}} Armenia - Armenian Socialist Soviet Republic
- {{Flagicon image|}} Asir - Emirate of Asir
- {{Flag|Australia}} - Commonwealth of Australia
- {{flagicon|Austria}} Austria - Federal State of Austria
- {{Flagicon image|Azerbaijansovietrep1920-1921.svg}} {{Flagicon image|Red flag.svg}} Azerbaijan - Azerbaijan Socialist Soviet Republic
B- {{Flag|Belgium|state}} - Kingdom of Belgium
- {{Flag|Bolivia}} - Republic of Bolivia
- {{Flag|Brazil|1889}} - Republic of the United States of Brazil
- {{Flagcountry|Kingdom of Bulgaria}} - Kingdom of Bulgaria
C- {{flagicon|Canada|1868}} {{Flag|Canada|1921}} - Dominion of Canada
- {{Flag|Chile}} - Republic of Chile
- {{flagcountry|Republic of China (1912–1949)|1912}} - Republic of China
- {{Flag|Colombia}} - Republic of Colombia
- {{Flag|Costa Rica}} - Republic of Costa Rica
- {{Flag|Cuba}} - Republic of Cuba
- {{flagdeco|Czechoslovakia}} Czechoslovakia - Czechoslovak Republic
D- {{Flag|Danzig}} - Free City of Danzig
- {{Flag|Denmark}} - Kingdom of Denmark
- {{Flag|Dominican Republic}}
E- {{Flag|Ecuador}} - Republic of Ecuador
- {{Flag|El Salvador}} - Republic of El Salvador {{small|(to October 1)}}
- {{Flag|Estonia}} - Republic of Estonia
- {{flagcountry|Ethiopian Empire}} - Ethiopian Empire
F- {{Flag|Finland}} - Republic of Finland
- {{Flag|Fiume}} - Free State of Fiume
- {{flagicon|France}} France - French Republic
G- {{Flagicon image|Flag of Georgia (1918-1921).svg}} Georgia - Democratic Republic of Georgia {{small|(to February 11)}}
- {{Flag|Weimar Republic|name=Germany}} - German Reich
- {{Flagcountry|Kingdom of Greece}} - Kingdom of Greece
- {{Flag|Guatemala}} - Republic of Guatemala {{small|(to October 1)}}
H- {{Flagicon image|Flag of Ha'il 1920.svg}} Ha'il - Emirate of Ha'il {{small|(to November 2)}}
- {{Flag|Haiti|civil}} - Republic of Haiti
- {{Flag|Kingdom of Hejaz|name=Hejaz}} - Kingdom of Hejaz
- {{Flagicon image|Flag_of_Honduras_(1866-1898).svg}} Honduras - Republic of Honduras {{small|(to October 1)}}
- {{flagicon|Hungary|civil}} Hungary - Kingdom of Hungary
I- {{Flagicon image|Light Blue Flag of Iceland.svg}} Iceland - Kingdom of Iceland
- {{Flagcountry|Kingdom of Italy}} - Kingdom of Italy
J- {{Flagcountry|Empire of Japan}} - Empire of Japan
L- {{Flag|Latvia}} - Republic of Latvia
- {{Flag|Liberia}} - Republic of Liberia
- {{flagicon|Liechtenstein|1852}} {{Flag|Liechtenstein|1921}} - Principality of Liechtenstein
- {{Flag|Lithuania|1918}} - Republic of Lithuania
- {{Flag|Luxembourg}} - Grand Duchy of Luxembourg
M- {{Flag|Mexico|1916}} - United Mexican States
- {{Flag|Monaco}} - Principality of Monaco
- {{Flagicon image|Flag of the People's Republic of Mongolia (1921-1924).svg}} Mongolia - Mongolian People's Government {{small|(from July 11)}}
N- {{Flagicon image|Flag_of_the_Second_Saudi_State.svg}} {{Flagcountry|Sultanate of Nejd}}
- Emirate of Nejd {{small|(to August 22)}}
- Sultanate of Nejd {{small|(from August 22)}}
- {{Flagicon image|Flag_of_Nepal_(19th_century-1962).svg}} Nepal - Kingdom of Nepal
- {{Flag|Netherlands}} - Kingdom of the Netherlands
- {{Flag|Newfoundland}} - Dominion of Newfoundland
- {{flagicon|New Zealand}} New Zealand - Dominion of New Zealand
- {{Flag|Nicaragua}} - Republic of Nicaragua
- {{Flag|Norway}} - Kingdom of Norway
O- {{Flag|Ottoman Empire}} - Sublime Ottoman State
P- {{Flag|Panama}} - Republic of Panama
- {{Flag|Paraguay|1842}} - Republic of Paraguay
- {{Flagicon image|Flag of Persia (1910).svg}} Persia - Persian Empire
- {{Flag|Peru|1825}} - Peruvian Republic
- {{flagicon|Poland}} Poland - Republic of Poland
- {{Flag|Portugal}} - Portuguese Republic
R- {{Flagcountry|Kingdom of Romania}} – Kingdom of Romania
- {{Flagcountry|Soviet Russia|size=23px}} – Russian Socialist Federative Soviet Republic
S- {{Flag|San Marino}} - Most Serene Republic of San Marino
- {{Flag|Kingdom of Yugoslavia|name=Serbs, Croats and Slovenes}} - Kingdom of Serbs, Croats, and Slovenes
- {{Flag|Thailand|name=Siam}} - Kingdom of Siam
- {{flagcountry|Union of South Africa|1912}} - Union of South Africa
- {{flagicon|Spain|1785}} Spain - Kingdom of Spain
- {{Flag|Sweden}} - Kingdom of Sweden
- {{Flag|Switzerland}} - Swiss Confederation
U- {{Flag|United Kingdom of Great Britain and Ireland|name=United Kingdom}} - United Kingdom of Great Britain and Ireland
- {{Flag|United States|1912}} - United States of America
- {{Flag|Uruguay}} - Eastern Republic of Uruguay
V- {{Flag|Venezuela|1905}} - United States of Venezuela
Y- {{Flagicon image|Flag of Yemen 1918.svg}} Yemen - Mutawakkilite Kingdom of Yemen
Other states- {{flagicon|Armenia}} Armenia, Mountainous {{small|(from April 26 to July)}}
- {{Flagicon image|Civil Flag of Serbia.svg}} Baranya-Baja - Serb-Hungarian Baranya-Baja Republic {{small|(from August 14 to August 25)}}
- {{noflag|Bottleneck}} - Free State Bottleneck
- {{Flagicon image|Flag of the Bukharan People's Soviet Republic.svg}} Bukharan - Bukharan People's Soviet Republic
- {{Flagicon image|Flag of the Byelorussian SSR (1919).svg}} Byelorussia - Byelorussian Socialist Soviet Republic
- {{Flagicon image|Flag of Central Lithuania.svg}} Central Lithuania - Republic of Central Lithuania
- {{Flag|Far Eastern Republic}}
- {{Flagicon image|Red flag.svg}} Georgia, Soviet - Socialist Soviet Republic of Georgia {{small|(from February 11)}}
- {{Flagicon image|Flag of Persian Socialist Soviet Republic.svg}} Gilan - Persian Socialist Soviet Republic (to September)
- {{flagicon|Ireland}} Ireland - Irish Republic
- {{Flagicon image|Flag of Khiva 1920-1923.svg}} Khorezm - Khorezm People's Soviet Republic
- Khorasan - Autonomous Government of Khorasan (from April 2, 1921 to October 6, 1921)
- {{noflag|Labin}} - Labin Republic {{small|(from March 2 to April 8)}}
- {{Flagicon image|Flag of Banate of Leitha.svg}} Lajtabánság - Banate of Leitha {{small|(from October 4 to November 5)}}
- {{Flagicon image|Mirdita republic.gif}} Mirdita - Republic of Mirdita {{small|(from July 17 to November 20)}}
- {{Flagicon image|Flag of Mongolia (1911).svg|border=}} Mongolia {{small|(from February 21 to July 11)}}
- {{flag|Morocco}} - Sultanate of Morocco {{small|(de jure sovereign state under French and Spanish protectorate)[1][2]}}
- {{Flagicon image|Flag of the North Caucasian Emirate 2.svg}} North Caucasian Emirate
- Provisional Priamurye Government
- {{Flagicon image|Flag of the Republic of the Rif.svg}} Rif - Confederal Republic of the Tribes of the Rif {{small|(from September 18)}}
- {{Flagicon image|Flag of Tannu Tuva (1921-1926).svg}} Tannu Tuva - People's Republic of Tannu Tuva {{small|(from August 14)}}
- {{Flagicon image|Flag_of_Tavolara.gif}} Tavolara - Kingdom of Tavolara
- {{Flagicon image|Flag of Tibet.svg}} Tibet
- {{Flagicon image|Flag_of_the_Ukrainian_SSR_(1919-1929).svg}} Ukraine, Soviet - Ukrainian Socialist Soviet Republic
League of Nations Mandates- {{flagicon|Australia}} Nauru {{small|(administered by Australia, New Zealand and the United Kingdom)}}
- {{flagicon|Australia}} New Guinea - Territory of New Guinea {{small|(administered by Australia)}}
- {{flagicon|Empire of Japan}} South Pacific Mandate {{small|(administered by Japan)}}
- {{flagicon|Union of South Africa|1912}} South-West Africa {{small|(administered by South Africa)}}
- {{flagicon|New Zealand}} Western Samoa {{small|(administered by New Zealand)}}
Not enacted- {{flagicon|UK}} {{flagicon|Iraq|1924}} Mesopotamia - Kingdom of Iraq {{small|(from August 23)}} {{small|(administered by the United Kingdom)}}
References1. ^{{Google books |id=jrTsNTzcY7EC |page=51 |title=International Law: Achievements and Prospects }}
2. ^{{Google books |id=esfISSxc13cC |page=453 |title=Repertory of Decisions of the International Court of Justice (1947–1992) }}
{{Lists of sovereign states by year |expanded=CE}} |