List of sovereign states in 1940

overeign States

A

*flag|Afghanistan|1931 – Kingdom of Afghanistan
*flag|Andorra – Principality of Andorra
*flag|Argentina – Argentine Republic
*flag|Australia – Commonwealth of Australia

B

*flag|Belgium|state – Kingdom of Belgium (to May 17)
*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
*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

D

*flag|Denmark – Kingdom of Denmark (to April 9)
*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 (to June 17)

F

*flag|Finland – Republic of Finland
*flagicon|France France – French Republic (to June 22)
**flagicon|France French State (from June 22. "Vichy France")

G

*flag|Nazi Germany|name=Germany – German Reich
*flagicon|Greece|royal Greece – Kingdom of Greece
*flag|Guatemala – Republic of Guatemala

H

*flag|Haiti|civil – Republic of Haiti
*flag|Honduras – Republic of Honduras
*flagicon|Hungary|civil flagicon|Hungary|1940 Hungary – Kingdom of Hungary

I

*flagicon image|Light Blue Flag of Iceland.svg Iceland – Kingdom of Iceland
*flagicon|Iran|1925 Iran – Imperial State of Iran
*flagicon|Iraq|1924 Iraq – Kingdom of Iraq
*flag|Ireland – Ireland
*flagicon|Italy|1861 Italy – Kingdom of Italy

J

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

L

*flag|Latvia – Republic of Latvia (to June 17)
*flag|Liberia – Republic of Liberia
*flag|Liechtenstein – Principality of Liechtenstein
*flag|Lithuania|1918 – Republic of Lithuania (to June 15)
*flag|Luxembourg – Grand Duchy of Luxembourg (to May 10)

M

*flag|Mexico|1934 – United Mexican States
*flag|Monaco – Principality of Monaco
*flagicon image|Flag of the People's Republic of Mongolia (1924-1940).svg flagicon|Mongolia|1949 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
*flagicon|United Kingdom Newfoundland – Dominion of Newfoundland
*flag|Nicaragua – Republic of Nicaragua
*flag|Norway – Kingdom of Norway (to Jun 7)

P

*flag|Panama – Republic of Panama
*flagicon image|Flag of Paraguay 1842.png Paraguay – Republic of Paraguay
*flag|Peru|1825 – Peruvian Republic
*flag|Portugal – Portuguese Republic

R

*flagicon|Romania Romania – Kingdom of Romania

*flag|San Marino – Most Serene Republic of San Marino
*flagicon image|Saudi Arabia Flag Variant (1938).svg Saudi Arabia – Kingdom of Saudi Arabia
*flagicon|South Africa|1928 South Africa – Union of South Africa
*flag|Soviet Union|1923 – Union of Soviet Socialist Republics
*flagicon image|Flag of Spain under Franco 1938 1945.svg Spain – Spanish State
*flag|Sweden – Kingdom of Sweden
*flag|Switzerland – Swiss Confederation

T

*flag|Thailand – Kingdom of Thailand
*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|Vatican City – State of the Vatican City
*flag|Venezuela|1930 – United States of Venezuela

Y

*flagicon|Yemen|1927 Yemen – Mutawakkilite Kingdom of Yemen
*flag|Kingdom of Yugoslavia|name=Yugoslavia – Kingdom of Yugoslavia

tates Claiming Sovereignty

*flagicon image|Flag of Lado.svg Lado – Lado District
*flag|Manchukuo – Great Empire of Manchuria
*flag|Mengjiang – Mengjiang United Autonomous Government
*flagicon|Republic of China|1912 Provisional Government of China – Provisional Government of China (to March 30)
*flagicon|Republic of China|1912 Reformed Government of the Republic of China – Reformed Government of the Republic of China (to March 30)
*flagicon|Slovakia|1938 Slovakia – Slovak Republic
*flag|Tannu Tuva – Tuvan People's Republic
*flagicon image|Red flag.svg Terijoki Government – Finnish Democratic Republic (to March 12)
*flag|Tibet – Tibet
*flagicon|Taiwan Wang Jingwei Government – Nanjing Nationalist Government (from March 30)