| Country | Joined UN |
|---|---|
| Afghanistan | 1946 |
| Albania | 1955 |
| Algeria | 1962 |
| Andorra | 1993 |
| Angola | 1976 |
| Antigua and Barbuda | 1981 |
| Argentina | 1945 |
| Armenia | 1992 |
| Australia | 1945 |
| Austria | 1955 |
| Azerbaijan | 1992 |
| 1973 | |
| Bahrain | 1971 |
| Bangladesh | 1974 |
| 1966 | |
| Belarus | 1945 |
| 1945 | |
| Belize | 1981 |
| Benin | 1960 |
| Bhutan | 1971 |
| Bolivia | 1945 |
| Bosnia and Herzegovina | 1992 |
| Botswana | 1966 |
| Brazil | 1945 |
| Brunei | 1984 |
| Bulgaria | 1955 |
| Burkina Faso | 1960 |
| Burma (Myanmar) | 1948 |
| Burundi | 1962 |
| Cambodia | 1955 |
| Cameroon | 1960 |
| 1945 | |
| Cape Verde | 1975 |
| Central African Republic | 1960 |
| Chad | 1960 |
| Chile | 1945 |
| China | 1945 |
| Colombia | 1945 |
| Comoros | 1975 |
| Congo, Rep. of | 1960 |
| Congo, Dem. Rep. of | 1960 |
| 1945 | |
| Côte d’Ivoire | 1960 |
| Croatia | 1992 |
| Cuba | 1945 |
| Cyprus | 1960 |
| 1993 | |
| Denmark | 1945 |
| Djibouti | 1977 |
| 1978 | |
| Dominican Republic | 1945 |
| East Timor | 2002 |
| Ecuador | 1945 |
| Egypt | 1945 |
| El Salvador | 1945 |
| Equatorial Guinea | 1968 |
| Eritrea | 1993 |
| Estonia | 1991 |
| Ethiopia | 1945 |
| Fiji | 1970 |
| Finland | 1955 |
| 1945 | |
| Gabon | 1960 |
| Gambia | 1965 |
| Georgia | 1992 |
| 1973 | |
| Ghana | 1957 |
| Greece | 1945 |
| 1974 | |
| Guatemala | 1945 |
| Guinea | 1958 |
| Guinea-Bissau | 1974 |
| Guyana | 1966 |
| Haiti | 1945 |
| Honduras | 1945 |
| 1955 | |
| Iceland | 1946 |
| India | 1945 |
| Indonesia | 1950 |
| Iran | 1945 |
| Iraq | 1945 |
| Ireland | 1955 |
| 1949 | |
| Italy | 1955 |
| 1962 | |
| Japan | 1956 |
| 1955 | |
| Kazakhstan | 1992 |
| Kenya | 1963 |
| Kiribati | 1999 |
| Korea, North | 1991 |
| Korea, South | 1991 |
| Kuwait | 1963 |
| Kyrgyzstan | 1992 |
| Laos | 1955 |
| Latvia | 1991 |
| Lebanon | 1945 |
| Lesotho | 1966 |
| Liberia | 1945 |
| Libya | 1955 |
| Liechtenstein | 1990 |
| Lithuania | 1991 |
| Luxembourg | 1945 |
| Macedonia | 1993 |
| Madagascar | 1960 |
| Malawi | 1964 |
| Malaysia | 1957 |
| Maldives | 1965 |
| Mali | 1960 |
| Malta | 1964 |
| Marshall Islands | 1991 |
| Mauritania | 1961 |
| Mauritius | 1968 |
| 1945 | |
| Micronesia | 1991 |
| Moldova | 1992 |
| Monaco | 1993 |
| Mongolia | 1961 |
| Montenegro | 2006 |
| Morocco | 1956 |
| Mozambique | 1975 |
| Namibia | 1990 |
| Nauru | 1999 |
| Nepal | 1955 |
| 1945 | |
| New Zealand | 1945 |
| Nicaragua | 1945 |
| Niger | 1960 |
| Nigeria | 1960 |
| Norway | 1945 |
| Oman | 1971 |
| Pakistan | 1947 |
| Palau | 1994 |
| Panama | 1945 |
| Papua New Guinea | 1975 |
| Paraguay | 1945 |
| Peru | 1945 |
| Philippines | 1945 |
| 1945 | |
| 1955 | |
| Qatar | 1971 |
| Romania | 1955 |
| Russia | 1945 |
| Rwanda | 1962 |
| 1983 | |
| 1979 | |
| St. Vincent and the Grenadines | 1980 |
| Samoa | 1976 |
| San Marino | 1992 |
| São Tomé and Príncipe | 1975 |
| Saudi Arabia | 1945 |
| Senegal | 1960 |
| Serbia | 2000 |
| Seychelles | 1976 |
| Sierra Leone | 1961 |
| Singapore | 1965 |
| 1993 | |
| Slovenia | 1992 |
| Solomon Islands | 1978 |
| Somalia | 1960 |
| South Africa | 1945 |
| South Sudan | 2011 |
| 1955 | |
| Sri Lanka | 1955 |
| Sudan | 1956 |
| Suriname | 1975 |
| Swaziland | 1968 |
| Sweden | 1946 |
| Switzerland | 2002 |
| Syria | 1945 |
| Tajikistan | 1992 |
| Tanzania | 1961 |
| Thailand | 1946 |
| Togo | 1960 |
| Tonga | 1999 |
| Trinidad and Tobago | 1962 |
| Tunisia | 1956 |
| Turkey | 1945 |
| Turkmenistan | 1992 |
| Tuvalu | 2000 |
| Uganda | 1962 |
| 1945 | |
| United Arab Emirates | 1971 |
| 1945 | |
| 1945 | |
| Uruguay | 1945 |
| Uzbekistan | 1992 |
| Vanuatu | 1981 |
| Venezuela | 1945 |
| Vietnam | 1977 |
| Yemen | 1947 |
| Zambia | 1964 |
| Zimbabwe | 1980 |