| Country #1 name |
Area #2 name |
Area #2 type |
Dates |
Notes
|
| Republic of Korea |
Democratic People's Republic of Korea |
Sovereign |
1950- |
|
| Republic of the Congo |
Democratic Republic of the Congo |
Sovereign |
1960-?, 1999- |
Congo River. Intermediately Zaire
|
| Republic of Guinea |
Republic of Guinea-Bissau |
Sovereign |
|
Also Equatorial Guinea
|
| Sudan |
South Sudan |
Sovereign |
|
|
| Dominican Republic |
Commonwealth of Dominica |
Sovereign |
|
|
| Bolivia |
Bolivarian Republic of Venezuela |
Sovereign |
|
|
| Ecuador |
Equatorial Guinea |
Sovereign |
|
|
| Russia |
Belarus |
Sovereign |
|
See also White Ruthenia
|
| Niger |
Nigeria |
Sovereign |
|
Niger River
|
| Grenada |
Saint Vincent and the Grenadines |
Sovereign |
|
Grenada includes some of the Grenadines
|
| Ireland |
United Kingdom of Great Britain and Northern Ireland |
Sovereign |
1937- |
See Names of the Irish state and Name of Northern Ireland
|
| People's Republic of China |
Republic of China |
Sovereign partially recognised |
1949-
|
| Republic of Türkiye |
Turkish Republic of Northern Cyprus |
Sovereign partially recognised |
1974- |
|
| Democratic Republic of Vietnam |
Republic of Vietnam |
Sovereign |
1950- |
|
| Federal Republic of Germany |
German Democratic Republic |
Sovereign |
1949-1990
|
| Yemen Arab Republic |
People's Democratic Republic of Yemen |
Sovereign |
1967-1990 |
|
| Kingdom of Sicily |
Kingdom of Naples |
Sovereign |
-1816 |
See Two Sicilies
|
| United States of America |
Federal Republic of Central America |
Sovereign |
1823-1839
|
| Byzantine Empire |
Holy Roman Empire |
Confederation |
Medieval |
See problem of two emperors
|
| United States of America |
United States of Central America |
Confederation |
1895-1898 |
|
| United States of America |
Confederate States of America |
Sovereign partially recognised |
1861-1865
|
| Azerbaijan |
East Azerbaijan and West Azerbaijan |
Part of Iran (provinces)
|
| Mongolia |
Inner Mongolia |
Part of PR China |
1919- |
See also Outer Mongolia
|
| Luxembourg |
Luxembourg |
Part of Belgium (province) |
|
|
| Guyana |
French Guiana |
Part of France |
|
Also Guayana Region, Venezuela. Note also unofficial name of Dutch Guiana
|
| Independent State of Samoa |
American Samoa |
Part of United States |
|
Formerly Western Samoa
|
| East Timor |
West Timor |
Part of Indonesia |
|
Not an administrative unit, but among its subdivisions are two named South Central Timor Regency and North Central Timor Regency
|
| Papua New Guinea |
Papua and West Papua |
Parts of Indonesia
|
| North Macedonia |
Macedonia (Greece) |
Part of Greece |
|
| Saudi Arabia |
Federation of South Arabia |
Protectorate of United Kingdom |
1962-1967 |
|
| Honduras |
British Honduras |
Dependency of United Kingdom |
|
|
| Northern Macedonia |
Macedonia |
Part of Greece |
1992- |
See Macedonia naming dispute; formerly Republic of Macedonia
|
