This list chronicles nations joining the United Nations, ordered by their date of entry. It traces the evolving landscape of global cooperation, from the foundational Member States to the most recent additions.
List of Countries 1-100
This section details the first 100 nations to join the United Nations, presented in chronological order of their entry.
- Poland - October 24, 1945
- France - October 24, 1945
- United Kingdom - October 24, 1945
- United States - October 24, 1945
- China - October 24, 1945
- Soviet Union - October 24, 1945
- Brazil - October 24, 1945
- New Zealand - October 24, 1945
- Egypt - October 24, 1945
- Iran - October 24, 1945
- Argentina - October 24, 1945
- Chile - October 24, 1945
- Cuba - October 24, 1945
- Denmark - October 24, 1945
- Belarus - October 24, 1945
- Belgium - October 24, 1945
- Bolivia - October 24, 1945
- Costa Rica - October 24, 1945
- Dominican Republic - October 24, 1945
- Ecuador - October 24, 1945
- El Salvador - October 24, 1945
- Guatemala - October 24, 1945
- Haiti - October 24, 1945
- Honduras - October 24, 1945
- Iraq - October 24, 1945
- Lebanon - October 24, 1945
- Liberia - October 24, 1945
- Luxembourg - October 24, 1945
- Nicaragua - October 24, 1945
- Panama - October 24, 1945
- Paraguay - October 24, 1945
- Peru - October 24, 1945
- Philippines - October 24, 1945
- Saudi Arabia - October 24, 1945
- Syria - October 24, 1945
- Turkey - October 24, 1945
- Ukraine - October 24, 1945
- Uruguay - October 24, 1945
- Venezuela - October 24, 1945
- Greece - October 25, 1945
- India - October 30, 1945
- Australia - November 1, 1945
- Colombia - November 5, 1945
- Mexico - November 7, 1945
- South Africa - November 7, 1945
- Canada - November 9, 1945
- Ethiopia - November 13, 1945
- Norway - November 27, 1945
- Netherlands - December 10, 1945
- Sweden - November 19, 1946
- Thailand - December 16, 1946
- Pakistan - September 30, 1947
- Yemen - September 30, 1947
- Myanmar - April 19, 1948
- Israel - May 11, 1949
- Indonesia - September 28, 1950
- Albania - December 14, 1955
- Austria - December 14, 1955
- Bulgaria - December 14, 1955
- Cambodia - December 14, 1955
- Finland - December 14, 1955
- Hungary - December 14, 1955
- Ireland - December 14, 1955
- Italy - December 14, 1955
- Jordan - December 14, 1955
- Laos - December 14, 1955
- Libya - December 14, 1955
- Nepal - December 14, 1955
- Portugal - December 14, 1955
- Romania - December 14, 1955
- Spain - December 14, 1955
- Sri Lanka - December 14, 1955
- Sudan - November 12, 1956
- Morocco - November 12, 1956
- Tunisia - November 12, 1956
- Japan - December 18, 1956
- Ghana - March 8, 1957
- Malaysia - September 17, 1957
- Guinea - December 12, 1958
- Cameroon - September 20, 1960
- Central African Republic - September 20, 1960
- Chad - September 20, 1960
- Congo - September 20, 1960
- Cyprus - September 20, 1960
- Benin - September 20, 1960
- Gabon - September 20, 1960
- Ivory Coast - September 20, 1960
- Madagascar - September 20, 1960
- Niger - September 20, 1960
- Somalia - September 20, 1960
- DR Congo - September 20, 1960
- Togo - September 20, 1960
- Burkina Faso - September 20, 1960
- Mali - September 28, 1960
- Senegal - September 28, 1960
- Nigeria - October 7, 1960
- Sierra Leone - September 27, 1961
- Mongolia - October 27, 1961
- Mauritania - October 27, 1961
- Tanzania - December 14, 1961
List of Countries 101-193
- Algeria - October 8, 1962
- Burundi - September 18, 1962
- Jamaica - September 18, 1962
- Rwanda - September 18, 1962
- Trinidad and Tobago - September 18, 1962
- Uganda - October 25, 1962
- Kuwait - May 14, 1963
- Kenya - December 16, 1963
- Malawi - December 1, 1964
- Malta - December 1, 1964
- Zambia - December 1, 1964
- Gambia - September 21, 1965
- Maldives - September 21, 1965
- Singapore - September 21, 1965
- Guyana - September 20, 1966
- Botswana - October 17, 1966
- Lesotho - October 17, 1966
- Barbados - December 9, 1966
- Democratic Yemen - December 14, 1967
- Mauritius - April 24, 1968
- Eswatini - September 24, 1968
- Equatorial Guinea - November 12, 1968
- Fiji - October 10, 1970
- Bahrain - September 21, 1971
- Bhutan - September 21, 1971
- Oman - October 7, 1971
- Qatar - September 21, 1971
- United Arab Emirates - December 9, 1971
- Germany - September 18, 1973
- German Democratic Republic - September 18, 1973
- Bahamas - September 18, 1973
- Bangladesh - September 17, 1974
- Grenada - September 17, 1974
- Guinea-Bissau - September 17, 1974
- Cape Verde - September 16, 1975
- Comoros - November 12, 1975
- Mozambique - September 16, 1975
- Sao Tome and Principe - September 16, 1975
- Papua New Guinea - October 10, 1975
- Suriname - December 4, 1975
- Angola - December 1, 1976
- Samoa - December 15, 1976
- Djibouti - September 20, 1977
- Vietnam - September 20, 1977
- Solomon Islands - September 19, 1978
- Dominica - December 18, 1978
- Saint Lucia - September 18, 1979
- Saint Vincent and the Grenadines - September 16, 1980
- Zimbabwe - August 25, 1980
- Belize - September 25, 1981
- Antigua and Barbuda - November 11, 1981
- Vanuatu - September 15, 1981
- Saint Kitts and Nevis - September 23, 1983
- Brunei Darussalam - September 21, 1984
- Liechtenstein - September 18, 1990
- Namibia - April 23, 1990
- Republic of Korea - September 17, 1991
- Democratic People's Republic of Korea - September 17, 1991
- Estonia - September 17, 1991
- Latvia - September 17, 1991
- Lithuania - September 17, 1991
- Federated States of Micronesia - September 17, 1991
- Marshall Islands - September 17, 1991
- Armenia - March 2, 1992
- Azerbaijan - March 2, 1992
- Kazakhstan - March 2, 1992
- Kyrgyzstan - March 2, 1992
- Moldova - March 2, 1992
- San Marino - March 2, 1992
- Tajikistan - March 2, 1992
- Turkmenistan - March 2, 1992
- Uzbekistan - March 2, 1992
- Bosnia and Herzegovina - May 22, 1992
- Croatia - May 22, 1992
- Slovenia - May 22, 1992
- Georgia - July 31, 1992
- Czech Republic - January 19, 1993
- Slovakia - January 19, 1993
- North Macedonia - April 8, 1993
- Eritrea - May 28, 1993
- Monaco - May 28, 1993
- Andorra - July 28, 1993
- Palau - December 15, 1994
- Kiribati - September 14, 1999
- Nauru - September 14, 1999
- Tonga - September 14, 1999
- Tuvalu - September 5, 2000
- Yugoslavia (Federal Republic of) - November 1, 2000
- Switzerland - September 10, 2002
- Timor-Leste - September 27, 2002
- Montenegro - June 28, 2006
- South Sudan - July 14, 2011
UN Observers
This section provides an honorable mention to UN Observers, entities that participate in the United Nations without full membership. The Vatican (Holy See) became the first non-member permanent observer state in 1964. Palestine is a more recent addition, having gained non-member observer state status in 2012.
