194 Member Nations, one member organization, and two associate members, as listed below
Members
Effective date of membership
Afghanistan
1 December 1949
Albania
12 November 1973
Algeria
19 November 1963
Andorra
17 November 2007
Angola
14 November 1977
Antigua and Barbuda
7 November 1983
Argentina
21 November 1951
Armenia
8 November 1993
Australia
16 October 1945
Austria
27 August 1947
Azerbaijan
20 October 1995
Bahamas
8 November 1975
Bahrain
8 November 1971
Bangladesh
Barbados
6 November 1967
Belarus
19 November 2005
Belgium
Belize
Benin
9 November 1961
Bhutan
7 November 1981
Bolivia, Plurinational State of
Bosnia and Herzegovina
6 November 1993
Botswana
1 November 1966
Brazil
Brunei Darussalam
15 June 2013
Bulgaria
Burkina Faso
Burundi
Cambodia
11 November 1950
Cameroon
22 March 1960
Canada
Cape Verde
Central African Republic
Chad
Chile
17 May 1946
China
Colombia
17 October 1945
Comoros
Congo
Cook Islands
11 November 1985
Costa Rica
7 April 1948
Côte d'Ivoire
Croatia
Cuba
19 October 1945
Cyprus
14 September 1960
Czech Republic
Democratic People's Republic of Korea
Democratic Republic of the Congo
Denmark
Djibouti
Dominica
12 November 1979
Dominican Republic
Ecuador
Egypt
El Salvador
19 August 1947
Equatorial Guinea
Eritrea
Estonia
11 November 1991
Eswatini
Ethiopia
1 January 1948
European Union - Member Organization
26 November 1991
Fiji
Finland
France
Gabon
Gambia
22 November 1965
Georgia
Germany
27 November 1950
Ghana
9 November 1957
Greece
Grenada
Guatemala
Guinea
5 November 1959
Guinea-Bissau
26 November 1973
Guyana
22 August 1966
Haiti
Honduras
Hungary
Iceland
India
Indonesia
28 November 1949
Iran, Islamic Republic of
1 December 1953
Iraq
Ireland
3 September 1946
Israel
23 November 1949
Italy
12 September 1946
Jamaica
13 March 1963
Japan
Jordan
23 January 1951
Kazakhstan
7 November 1997
Kenya
27 January 1964
Kiribati
15 November 1999
Kuwait
Kyrgyzstan
Lao, People's Democratic Republic
Latvia
Lebanon
27 October 1945
Lesotho
7 November 1966
Liberia
Libya
24 November 1953
Lithuania
Luxembourg
Madagascar
Malawi
Malaysia
Maldives
Mali
Malta
5 October 1964
Marshall Islands
12 November 1999
Mauritania
Mauritius
12 March 1968
Mexico
Micronesia, Federated States of
29 November 2003
Moldova, Republic of
Monaco
2 November 2001
Mongolia
Montenegro
Morocco
13 September 1956
Mozambique
Myanmar
11 September 1947
Namibia
Nauru
Nepal
Netherlands
New Zealand
Nicaragua
Niger
Nigeria
11 October 1960
Niue
North Macedonia
Norway
Oman
Pakistan
7 September 1947
Palau
Panama
Papua New Guinea
Paraguay
30 October 1945
Peru
17 June 1952
Philippines
Poland
Portugal
11 September 1946
Qatar
Republic of Korea
25 November 1949
Romania
Russian Federation
11 April 2006
Rwanda
Saint Kitts and Nevis
Saint Lucia
26 November 1979
Saint Vincent and the Grenadines
Samoa
San Marino
Sao Tome and Principe
Saudi Arabia
23 November 1948
Senegal
Serbia
Seychelles
Sierra Leone
Singapore
Slovakia
Slovenia
Solomon Islands
Somalia
17 November 1960
South Africa
9 November 1993
South Sudan
Spain
5 April 1951
Sri Lanka
21 May 1948
Sudan
Suriname
26 November 1975
Sweden
13 February 1950
Switzerland
Syrian Arab Republic
Tajikistan
Thailand
Timor-Leste
Togo
23 May 1960
Tonga
Trinidad and Tobago
Tunisia
25 November 1955
Turkey
6 April 1948
Turkmenistan
Tuvalu
Uganda
Ukraine
United Arab Emirates
United Kingdom
United Republic of Tanzania
8 February 1962
United States of America
Uruguay
30 November 1945
Uzbekistan
Vanuatu
Venezuela, Bolivarian Republic of
Viet Nam
Yemen
22 May 1990
Zambia
Zimbabwe
Associate Members
Faroe Islands
Tokelau
25 June 2011
