| Old Name | Year of change | New Name | % Correct |
|---|---|---|---|
| East Pakistan | 1971 | Bangladesh | 95%
|
| New South Wales | 1824 | Australia | 89%
|
| Byelorussia | 1991 | Belarus | 89%
|
| Bosnia | 1853 | Bosnia and Herzegovina | 89%
|
| British Honduras | 1973 | Belize | 86%
|
| Central African Empire | 1979 | Central African Republic | 86%
|
| Persia | 1935 | Iran | 86%
|
| Irish Free State | 1937 | Ireland | 86%
|
| Moldavian SSR | 1991 | Moldova | 86%
|
| Burma | 1989 | Myanmar | 86%
|
| Territory of Papua and New Guinea | 1975 | Papua New Guinea | 86%
|
| Siam | 1949 | Thailand | 86%
|
| Zaire | 1997 | Democratic Republic of the Congo | 84%
|
| Kingdom of Holland | 1830 | The Netherlands | 84%
|
| Swaziland | 2018 | eSwatini | 82%
|
| British Mandate of Palestine | 1948 | Israel | 82%
|
| Emirate of Transjordan | 1946 | Jordan | 82%
|
| Middle Congo | 1910 | Republic of Congo | 82%
|
| Western Samoa | 1997 | Samoa | 82%
|
| French Togoland | 1960 | Togo | 82%
|
| United Kingdom of the Netherlands | 1830 | Belgium | 80%
|
| Southwest Africa | 1990 | Namibia | 80%
|
| Ceylon | 1972 | Sri Lanka | 80%
|
| Dutch East Indies | 1949 | Indonesia | 77%
|
| East Timor | 2002 | Timor-Leste | 77%
|
| Gold Coast | 1957 | Ghana | 75%
|
| Portuguese Guinea | 1979 | Guinea-Bissau | 75%
|
| British Guiana | 1966 | Guyana | 75%
|
| Northern Rhodesia | 1964 | Zambia | 75%
|
| Spanish Guinea | 1968 | Equatorial Guinea | 73%
|
| New Spain | 1821 | Mexico | 73%
|
| Spanish East Indies | 1898 | Philippines | 73%
|
| Southern Rhodesia | 1980 | Zimbabwe | 73%
|
| Kampuchea | 1991 | Cambodia | 70%
|
| British Mandate of Mesopotamia | 1932 | Iraq | 70%
|
| Dutch Guiana | 1975 | Suriname | 70%
|
| Upper Peru | 1825 | Bolivia | 68%
|
| Cape Verde | 2013 | Cabo Verde | 66%
|
| Upper Volta | 1984 | Burkina Faso | 61%
|
| Abyssinia | 1941 | Ethiopia | 59%
|
| Formosa | 1895 | Taiwan | 59%
|
| French Sudan | 1960 | Mali | 57%
|
| Gilbert Islands | 1979 | Kiribati | 55%
|
| Dahomey | 1975 | Benin | 48%
|
| Judea | 135 | Syria Palaestina | 48%
|
| Bechuanaland | 1966 | Botswana | 45%
|
| Spanish Sahara | 1975 | Western Sahara | 45%
|
| Nyasaland | 1964 | Malawi | 41%
|
| Basutoland | 1966 | Lesotho | 39%
|
| New Hebrides | 1980 | Vanuatu | 39%
|
| Terra de Santa Cruz | 1530 | Brasil | 36%
|
| New Granada | 1863 | Colombia | 36%
|
| Ellice Islands | 1978 | Tuvalu | 34%
|
| Territory of the Afars and the Issas | 1977 | Djibouti | 25%
|
| New Connecticut | 1777 | Republic of Vermont | 18%
|
| Temasik | 1819 | Singapore | 14%
|