List of sovereign states in 1928

overeign States

A

*flagicon|Afghanistan|1921 flagicon image|Flag of Afghanistan 1928.svg flag|Afghanistan|1928 – Kingdom of Afghanistan
*flagicon image|Flag of Albania 1926.svg Albania (to September 1)
**flagicon image|Flag of Albania 1928.svg Albanian Kingdom (from September 1)
*flag|Andorra – Principality of Andorra
*flag|Argentina – Argentine Republic
*flag|Australia – Commonwealth of Australia
*flagicon|Austria Austria – Republic of Austria

B

*flag|Belgium|state – Kingdom of Belgium
*flag|Bolivia – Republic of Bolivia
*flag|Brazil|1889 – Republic of the United States of Brazil
*flagicon|Bulgaria|1878 Bulgaria – Kingdom of Bulgaria

C

*flag|Canada|1921 – Dominion of Canada
*flag|Chile – Republic of Chile
*flagicon|Republic of China|1912 flag|Republic of China|name=China – Republic of China
*flag|Colombia – Republic of Colombia
*flag|Costa Rica|state – Republic of Costa Rica
*flag|Cuba – Republic of Cuba
*flagicon|Czechoslovakia Czechoslovakia – Czechoslovak Republic

D

*flag|Danzig – Free City of Danzig
*flag|Denmark – Kingdom of Denmark
*flag|Dominican Republic – Dominican Republic

E

*flag|Ecuador – Republic of Ecuador
*flagicon|Egypt|1922 Egypt – Kingdom of Egypt
*flag|El Salvador – Republic of El Salvador
*flag|Estonia – Republic of Estonia
*flagicon|Ethiopia|1897 Ethiopia – Empire of Ethiopia

F

*flag|Finland – Republic of Finland
*flagicon|France France – French Republic

G

*flag|Weimar Republic|name=Germany – German Reich
*flagicon|Greece|old Greece – Hellenic Republic
*flag|Guatemala – Republic of Guatemala

H

*flag|Haiti|civil – Republic of Haiti
*flagicon image|Flag of Nejd (1921).svg Hejaz and Nejd (Personal Union)
**flagicon image|Flag of Asir 1927.svg Asir – Emirate of Asir
**flagicon image|Flag of Hejaz 1926.svg Hejaz – Kingdom of Hejaz
**flagicon image|Flag of Nejd (1926).svg Nejd – Kingdom of Nejd
*flag|Honduras – Republic of Honduras
*flagicon|Hungary|civil Hungary – Kingdom of Hungary

I

*flagicon image|Light Blue Flag of Iceland.svg Iceland – Kingdom of Iceland
*flagicon|Ireland Ireland – Irish Free State
*flagicon|Italy|1861 Italy – Kingdom of Italy

J

*flag|Empire of Japan|name=Japan – Empire of Japan

L

*flag|Latvia – Republic of Latvia
*flag|Liberia – Republic of Liberia
*flag|Liechtenstein|old – Principality of Liechtenstein
*flag|Lithuania|1918 – Republic of Lithuania
*flag|Luxembourg – Grand Duchy of Luxembourg

M

*flag|Mexico|1917 – United Mexican States
*flag|Monaco – Principality of Monaco
*flagicon image|Flag of the People's Republic of Mongolia (1924-1940).svg Mongolia – People's Republic of Mongolia

N

*flagicon image|Pre 1962 Flag of Nepal.png|border= Nepal – Kingdom of Nepal
*flag|Netherlands – Kingdom of The Netherlands
*flagicon|New Zealand New Zealand – Dominion of New Zealand
*flag|Newfoundland – Dominion of Newfoundland
*flag|Nicaragua – Republic of Nicaragua
*flag|Norway – Kingdom of Norway

P

*flag|Panama – Republic of Panama
*flagicon image|Flag of Paraguay 1842.png Paraguay – Republic of Paraguay
*flagicon|Iran|1925 Persia – Imperial State of Persia
*flag|Peru|1825 – Peruvian Republic
*flagicon|Poland Poland – Republic of Poland
*flag|Portugal – Portuguese Republic

R

*flagicon|Romania Romania – Kingdom of Romania

*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
*flagicon|South Africa|1910 flagicon|South Africa|1928 South Africa – Union of South Africa
*flag|Soviet Union|1923 – Union of Soviet Socialist Republics
*flagicon|Spain|1785 Spain – Kingdom of Spain
*flag|Sweden – Kingdom of Sweden
*flag|Switzerland – Swiss Confederation

T

*flag|Turkey – Republic of Turkey

U

*flag|United Kingdom – United Kingdom of Great Britain and Northern 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|Yemen|1927 Yemen – Mutawakkilite Kingdom of Yemen

tates Claiming Sovereignty

*flagicon image|Flag of the Republic of Ararat.svg Ararat – Republic of Ararat
*flagicon image|Flag of Lado.svg Lado – Lado District
*flag|Tannu Tuva|1926 – Tuvan People's Republic
*flagicon image|Flag_of_Tavolara.gif Tavolara – Kingdom of Tavolara
*flag|Tibet – Tibet