List of members of the United Nations Security Council
Membership of the United Nations Security Council is held by the five permanent members and ten elected, non-permanent members. Prior to 1966, there were six elected members, while the permanent members have in essence not changed since the creation of the United Nations in 1945, apart from the representation of China. Elected members hold their place on the council for a two-year term, and half of these places are contested each year. To ensure geographical continuity, a certain number of members is allocated for each of the five UN regional groupings.
Current membership
| Country | Regional Group | Member since |
|---|---|---|
| China | Asia-Pacific Group | 1971, replaced the Republic of China |
| France | Western European and Others Group | 1945 |
| Russia | Eastern European Group | 1991, replaced the Union of Soviet Socialist Republics |
| United Kingdom | Western European and Others Group | 1945 |
| United States | Western European and Others Group | 1945 |
- Non-permanent members
| Country | Regional Group | Term began | Term ends |
|---|---|---|---|
| Algeria | African Group (Arab) | 2024 | 2025 |
| Ecuador | Latin American and Caribbean Group (GRULAC) | 2023 | 2024 |
| Guyana | Latin American and Caribbean Group (GRULAC) | 2024 | 2025 |
| Japan | Asia-Pacific Group | 2023 | 2024 |
| Malta | Western European and Others Group (WEOG) | 2023 | 2024 |
| Mozambique | African Group | 2023 | 2024 |
| Sierra Leone | African Group | 2024 | 2025 |
| Slovenia | Eastern European Group (EEG) | 2024 | 2025 |
| South Korea | Asia-Pacific Group | 2024 | 2025 |
| Switzerland | Western European and Others Group (WEOG) | 2023 | 2024 |
Regional Groups
African Group
Asia-Pacific Group
Eastern European Group
Latin American and Caribbean Group (GRULAC)
Western European and Others Group
UN member not in any voting group
Observer states
Non-UN state or territory
- African Group: 3 members
- Asia-Pacific Group: 2 members
- Eastern European Group (CEIT, or Countries with Economies in Transition): 1 member
- Latin American and Caribbean Group (GRULAC): 2 members
- Western European and Others Group (WEOG): 2 members; at least one of these must be from Western Europe
In addition, one of the non-permanent members of the council is an Arab country, alternately from the African or Asia-Pacific groups. This rule was added to the system in 1967 for it to be applied beginning with 1968.
Each year the UN General Assembly elects five new members for a two-year term; these elections always begin in October of the year, and continue until the two-thirds majority for the number of countries for each region has been reached. Re-election is allowed, but the term must not be consecutive.
- Electoral timetable
| Term beginning in years that are: | Odd | Even |
|---|---|---|
| African Group | one member | two members * |
| Asia-Pacific Group | one member | one member * |
| Eastern European Group | none | one member |
| Latin American and Caribbean Group (GRULAC) | one member | one member |
| Western European and Others Group | two members | none |
* The representative of Arab nations alternates between these two elected spaces.
Previous and future Security Council composition
From 1946 to 1965, the security council included six non-permanent members. The regional grouping at that time was:
- Latin America: 2 members
- Commonwealth of Nations: 1 member
- Eastern Europe: 1 member
- Middle East: 1 member
- Western Europe: 1 member
There were some exceptions to this grouping: Liberia took the place of a Western European country in 1961; the Ivory Coast substituted a member of the Commonwealth in 1964–1965; and the Eastern Europe group included Asian countries from 1956.
As part of a proposed expansion of the Security Council, Brazil, Germany, India and Japan, collectively the Group of 4 or G4 nations, are seeking permanent representation on this body. Italy opposed the expansion of the Security Council through the establishment of the group Uniting for Consensus.
Membership by year
Permanent
| Year | Chinese seat | French seat | Soviet/Russian seat | British seat | American seat |
|---|---|---|---|---|---|
| 1945 | Republic of China | Prov. Gov. of France | Soviet Union | United Kingdom | United States |
| 1946 | French 4th Republic | ||||
| 1949 | Republic of China (Taiwan) | ||||
| 1958 | French 5th Republic | ||||
| 1971 | People's Republic of China | ||||
| 1991–present | Russian Federation |
Non-permanent (1946–1965)
| Year | Latin American Seats | Commonwealth Seat |
Eastern European & Asian Seat |
Middle Eastern Seat | Western European Seat | |
|---|---|---|---|---|---|---|
| 1946 | Brazil | Mexico | Australia | Poland | Egypt | Netherlands |
| 1947 | Colombia | Syria | Belgium | |||
| 1948 | Argentina | Canada | Ukrainian SSR | |||
| 1949 | Cuba | Egypt | Norway | |||
| 1950 | Ecuador | India | Yugoslavia | |||
| 1951 | Brazil | Turkey | Netherlands | |||
| 1952 | Chile | Pakistan | Greece | |||
| 1953 | Colombia | Lebanon | Denmark | |||
| 1954 | Brazil | New Zealand | Turkey | |||
| 1955 | Peru | Iran | Belgium | |||
| 1956 | Cuba | Australia | Yugoslavia | |||
| 1957 | Colombia | Philippines | Iraq | Sweden | ||
| 1958 | Panama | Canada | Japan | |||
| 1959 | Argentina | Tunisia | Italy | |||
| 1960 | Ecuador | Ceylon | Poland | |||
| 1961 | Chile | Turkey | United Arab Republic | Liberia | ||
| 1962 | Venezuela | Ghana | Romania | Ireland | ||
| 1963 | Brazil | Philippines | Morocco | Norway | ||
| 1964 | Bolivia | Ivory Coast | Czechoslovakia | |||
| 1965 | Uruguay | Malaysia | Jordan | Netherlands | ||
Non-permanent (1966–present)
List by number of years as Security Council member
This list contains the 138 United Nations member states so far elected to the United Nations Security Council, including the five permanent members, all listed by number of years each country has so far spent on the UNSC. Of all the members, 6 have so far ceased to exist, leaving the list with 132 modern nations. These, combined with the 61 modern nations that have never been elected to the UNSC to date (see Non-members, below), make up the entirety of the 193 current members of the UN.
Years on the Security Council, as of 2024, including current year where relevant :
Indicates permanent member
Indicates current elected member (2024)
Indicates former United Nations member
| Years | Country | First Year | Most Recent Year | Regional Group | Notes |
|---|---|---|---|---|---|
| 79 | France | 1945 | 2024 | WEOG | Permanent member |
| 79 | United Kingdom | 1945 | 2024 | WEOG | Permanent member |
| 79 | United States | 1945 | 2024 | WEOG | Permanent member |
| 53 | People's Republic of China | 1971 | 2024 | Asia-Pacific | Permanent member |
| 46 | Soviet Union | 1945 | 1991 | E. European | Former permanent member, replaced by Russian Federation |
| 33 | Russian Federation | 1991 | 2024 | E. European | Permanent member |
| 26 | Republic of China | 1945 | 1971 | Asian | Former permanent member, replaced by People's Republic of China |
| 24 | Japan | 1958 | 2024 | Asia-Pacific | |
| 22 | Brazil | 1946 | 2023 | GRULAC | |
| 18 | Argentina | 1948 | 2014 | GRULAC | |
| 16 | India | 1950 | 2022 | Asia-Pacific | |
| 14 | Colombia | 1947 | 2012 | GRULAC | |
| 14 | Pakistan | 1952 | 2013 | Asia-Pacific | |
| 13 | Italy | 1959 | 2017 | WEOG | |
| 12 | Belgium | 1947 | 2020 | WEOG | |
| 12 | Canada | 1948 | 2000 | WEOG | |
| 12 | Germany | 1977 | 2020 | WEOG | Includes 4 years when the Federal Republic of Germany consisted only of West Germany (but does not include East Germany's 2 years, listed separately below). |
| 11 | Poland | 1946 | 2019 | E. European | |
| 10 | Australia | 1946 | 2014 | WEOG | |
| 10 | Chile | 1952 | 2015 | GRULAC | |
| 10 | Netherlands | 1946 | 2018 | WEOG | |
| 10 | Nigeria | 1966 | 2015 | African | |
| 10 | Norway | 1949 | 2022 | WEOG | |
| 10 | Panama | 1958 | 2008 | GRULAC | |
| 10 | Peru | 1955 | 2019 | GRULAC | |
| 10 | Spain | 1969 | 2016 | WEOG | |
| 10 | Venezuela | 1962 | 2016 | GRULAC | |
| 9 | Egypt | 1946 | 2017 | African (Arab) | Excludes 2 years with the seat held in the name of the United Arab Republic, of which for more than 15 months UAR served as the name of modern-day Egypt |
| 9 | Mexico | 1946 | 2022 | GRULAC | |
| 8 | Denmark | 1953 | 2006 | WEOG | |
| 8 | Ecuador | 1950 | 2024 | GRULAC | |
| 8 | Gabon | 1978 | 2023 | African | |
| 8 | Ghana | 1962 | 2023 | African | |
| 8 | Indonesia | 1973 | 2020 | Asia-Pacific | |
| 8 | Sweden | 1957 | 2018 | WEOG | |
| 8 | Ukraine | 1948 | 2017 | E. European | Includes 4 years of membership under the name of Ukrainian SSR; Ukrainian SSR held its own seat in the General Assembly while being part of the Soviet Union during its 46 years of Security Council membership |
| 8 | Tunisia | 1959 | 2021 | African | |
| 7 | Algeria | 1968 | 2024 | African (Arab) | |
| 7 | Ireland | 1962 | 2022 | WEOG | |
| 7 | Malaysia | 1965 | 2016 | Asia-Pacific | |
| 7 | New Zealand | 1954 | 2016 | WEOG | |
| 7 | Romania | 1962 | 2005 | E. European | |
| 7 | Turkey | 1951 | 2010 | WEOG | |
| 7 | Yugoslavia | 1950 | 1989 | E. European | Predecessor of Bosnia and Herzegovina, Croatia, Montenegro, North Macedonia, Serbia, and Slovenia |
| 6 | Austria | 1973 | 2010 | WEOG | |
| 6 | Bolivia | 1964 | 2018 | GRULAC | |
| 6 | Bulgaria | 1966 | 2003 | E. European | |
| 6 | Costa Rica | 1974 | 2009 | GRULAC | |
| 6 | Cuba | 1949 | 1991 | GRULAC | |
| 6 | Ethiopia | 1967 | 2018 | African | |
| 6 | Ivory Coast | 1964 | 2019 | African | |
| 6 | Jordan | 1965 | 2015 | Asia-Pacific (Arab) | |
| 6 | Kenya | 1973 | 2022 | African | |
| 6 | Morocco | 1963 | 2013 | African (Arab) | |
| 6 | Philippines | 1957 | 2005 | Asia-Pacific | |
| 6 | Portugal | 1979 | 2012 | WEOG | |
| 6 | Senegal | 1968 | 2017 | African | |
| 6 | South Africa | 2007 | 2020 | African | |
| 6 | Syria | 1947 | 2003 | Asia-Pacific (Arab) | Excludes one year (1961) during which the United Arab Republic was a member, for the greater part of which Syria was a member of that union |
| 6 | Zambia | 1969 | 1988 | African | |
| 5 | Guyana | 1975 | 2024 | GRULAC | |
| 5 | South Korea | 1996 | 2024 | Asia-Pacific | |
| 5 | Uganda | 1966 | 2010 | African | |
| 4 | Angola | 2003 | 2016 | African | |
| 4 | Bangladesh | 1979 | 2001 | Asia-Pacific | |
| 4 | Benin | 1976 | 2005 | African | |
| 4 | Burkina Faso | 1984 | 2009 | African | For first 7 months of membership of the Security council in 1984 was known as Upper Volta. |
| 4 | Cameroon | 1974 | 2003 | African | |
| 4 | Finland | 1969 | 1990 | WEOG | |
| 4 | Greece | 1952 | 2006 | WEOG | |
| 4 | Guinea | 1972 | 2003 | African | |
| 4 | Hungary | 1968 | 1993 | E. European | |
| 4 | Iraq | 1957 | 1975 | Asia-Pacific (Arab) | |
| 4 | Jamaica | 1979 | 2001 | GRULAC | |
| 4 | Kuwait | 1978 | 2019 | Asia-Pacific (Arab) | |
| 4 | Lebanon | 1953 | 2011 | Asia-Pacific (Arab) | |
| 4 | Libya | 1976 | 2009 | African (Arab) | |
| 4 | Mali | 1966 | 2001 | African | |
| 4 | Malta | 1983 | 2024 | WEOG | |
| 4 | Mauritius | 1977 | 2002 | African | |
| 4 | Nepal | 1969 | 1989 | Asia-Pacific | |
| 4 | Nicaragua | 1970 | 1984 | GRULAC | |
| 4 | Niger | 1980 | 2021 | African | |
| 4 | Republic of the Congo | 1986 | 2007 | African | |
| 4 | Rwanda | 1994 | 2014 | African | |
| 4 | Tanzania | 1975 | 2006 | African | |
| 4 | Togo | 1982 | 2013 | African | |
| 4 | United Arab Emirates | 1986 | 2023 | Asia-Pacific (Arab) | |
| 4 | Uruguay | 1965 | 2017 | GRULAC | |
| 4 | Vietnam | 2008 | 2021 | Asia-Pacific | |
| 4 | Zaire | 1982 | 1991 | African | Now known as Democratic Republic of the Congo |
| 4 | Zimbabwe | 1983 | 1992 | African | |
| 3 | Czechoslovakia | 1964 | 1979 | E. European | Predecessor of Czech Republic and Slovakia |
| 3 | Sierra Leone | 1970 | 2024 | African | |
| 3 | Slovenia | 1998 | 2024 | E. European | Was also part of the SFR Yugoslavia during its 7 years of Security Council membership |
| 2 | Albania | 2022 | 2023 | E. European | |
| 2 | Azerbaijan | 2012 | 2013 | E. European | Was part of the Soviet Union during its 45 years of Security Council membership |
| 2 | Bahrain | 1998 | 1999 | Asia-Pacific (Arab) | |
| 2 | Bosnia and Herzegovina | 2010 | 2011 | E. European | Was also part of the SFR Yugoslavia during its 7 years of Security Council membership |
| 2 | Botswana | 1995 | 1996 | African | |
| 2 | Burundi | 1970 | 1971 | African | |
| 2 | Byelorussian SSR | 1974 | 1975 | E. European | Now known as Belarus; Byelorussian SSR held its own seat in the General Assembly while being part of the Soviet Union during its 45 years of Security Council membership |
| 2 | Cape Verde | 1992 | 1993 | African | |
| 2 | Ceylon | 1960 | 1961 | Asia-Pacific | Now known as Sri Lanka |
| 2 | Chad | 2014 | 2015 | African | |
| 2 | Croatia | 2008 | 2009 | E. European | Was also part of the SFR Yugoslavia during its 7 years of Security Council membership |
| 2 | Czech Republic | 1994 | 1995 | E. European | Was also part of Czechoslovakia during its 3 years of Security Council membership |
| 2 | Djibouti | 1993 | 1994 | African | |
| 2 | Dominican Republic | 2019 | 2020 | GRULAC | |
| 2 | East Germany | 1980 | 1981 | E. European | Now subsumed into Germany, which has 8 years of Security Council membership since it has included the former territory of East Germany |
| 2 | Estonia | 2020 | 2021 | E. European | Part of the Soviet Union from 1944 to 20 August 1991 |
| 2 | Equatorial Guinea | 2018 | 2019 | African | |
| 2 | Gambia | 1998 | 1999 | African | |
| 2 | Guatemala | 2012 | 2013 | GRULAC | |
| 2 | Guinea-Bissau | 1996 | 1997 | African | |
| 2 | Honduras | 1995 | 1996 | GRULAC | |
| 2 | Iran | 1955 | 1956 | Asia-Pacific | |
| 2 | Kazakhstan | 2017 | 2018 | Asia-Pacific | Was part of the Soviet Union from 26 April 1920 to 25 December 1991 |
| 2 | Lithuania | 2014 | 2015 | E. European | Part of the Soviet Union from 3 August 1940 to 11 March 1990 |
| 2 | Luxembourg | 2013 | 2014 | WEOG | |
| 2 | Madagascar | 1985 | 1986 | African | |
| 2 | Mauritania | 1974 | 1975 | African | |
| 2 | Mozambique | 2023 | 2024 | African | |
| 2 | Namibia | 1999 | 2000 | African | |
| 2 | Oman | 1994 | 1995 | Asia-Pacific (Arab) | |
| 2 | Paraguay | 1968 | 1969 | GRULAC | |
| 2 | Qatar | 2006 | 2007 | Asia-Pacific (Arab) | |
| 2 | Saint Vincent and the Grenadines | 2020 | 2021 | GRULAC | Smallest nation to have held a place on the Security Council. |
| 2 | Singapore | 2001 | 2002 | Asia-Pacific | Was also part of Malaysia for several months of 1965 during its membership of the Security Council |
| 2 | Slovakia | 2006 | 2007 | E. European | Was also part of Czechoslovakia during its 3 years of Security Council membership |
| 2 | Somalia | 1971 | 1972 | African | |
| 2 | Sudan | 1972 | 1973 | African (Arab) | |
| 2 | Switzerland | 2023 | 2024 | WEOG | |
| 2 | Thailand | 1985 | 1986 | Asia-Pacific | |
| 2 | Trinidad and Tobago | 1985 | 1986 | GRULAC | |
| 2 | United Arab Republic | 1961 | 1962 | African (Arab) | Union of Syria and Egypt |
| 1 | Yemen | 1990 | 1991 | Asia-Pacific (Arab) | Inherited the seat from South Yemen; served the remaining of the term, for one year and seven months. |
| 1 | South Yemen | 1990 | 1990 | Asia-Pacific (Arab) | Held the Security Council seat for the first five months of membership, then unified with North Yemen and passed the seat to Yemen. |
| 1 | Liberia | 1961 | 1961 | African | Served only one year. |
Future membership
The following countries have made known their applications for future United Nations Security Council membership:
| Year | Africa | Asia-Pacific | Eastern Europe | Latin America & Caribbean | Western Europe & Others |
|---|---|---|---|---|---|
| 2025-26 | Mauritius | Pakistan | – | ? | Greece, Denmark |
| 2026-27 | ? | Bahrain | Latvia, Montenegro | ? | – |
| 2027-28 | ? | Philippines Kyrgyzstan | – | ? | Portugal, Austria |
| 2028-29 | ? | India Tajikistan | ? | ? | – |
| 2029-30 | ? | Iran, Uzbekistan | – | ? | Australia, Finland |
| 2030-31 | ? | ? | Croatia | ? | – |
| 2031-32 | ? | ? | – | Guatemala | ? |
| 2032-33 | ? | ? | Armenia | ? | – |
| 2037-38 | ? | ? | – | ? | Belgium |
Non-members
As of July 2011, there are currently 193 members of the United Nations and five permanent members of the Security Council. The other ten seats are assigned amongst the remaining 188 members. As a result, many members have never been on the Security Council. The following list is a summary of all countries, currently 61 modern nations and three historical ones, that have never been a member of the United Nations Security Council. The three historical UN members listed are Tanganyika, Zanzibar, and the Federal Republic of Yugoslavia.
Indicates former United Nations member
| UN Member state | Regional Group | Security Council membership as part of another entity |
|---|---|---|
| Afghanistan | Asia-Pacific | |
| Andorra | WEOG | |
| Antigua and Barbuda | GRULAC | Was a colony of the United Kingdom from 1632 to 1 November 1981 |
| Armenia | E. European | Was part of the Soviet Union from 29 November 1920 to 25 December 1991 |
| Bahamas | GRULAC | Was a colony of the United Kingdom from 1717 to 10 July 1973 |
| Barbados | GRULAC | Was a colony of the United Kingdom from 1625 to 30 November 1966 |
| Belize | GRULAC | Was a colony of the United Kingdom from 1862 to 21 September 1981 |
| Bhutan | Asia-Pacific | |
| Brunei | Asia-Pacific | Was a protectorate of the United Kingdom from 1888 to 1984 |
| Cambodia | Asia-Pacific | Was a colony of France from 1863 to 9 November 1953 |
| Central African Republic | African | Was a colony of France from 1894 to 13 August 1960 |
| Comoros | African | Was a colony of France from 1841 to 6 July 1975 |
| Cyprus | Asia-Pacific | Was a colony of the United Kingdom from 5 November 1914 to 16 August 1960 |
| Dominica | GRULAC | Was a colony of the United Kingdom from 1783 to 3 November 1978 |
| El Salvador | GRULAC | |
| Eritrea | African | Was under the administration of the United Kingdom from 1941 to 1947, then a United Nations Trust Territory from 1947 to 1952, then part of Ethiopia from 1952 to 24 May 1993 |
| Eswatini | African | Was a colony of the United Kingdom from 1902 to 6 September 1968 |
| Fiji | Asia-Pacific | Was a colony of the United Kingdom from 1874 to 10 October 1970 |
| Georgia | E. European | Was part of the Soviet Union from 25 February 1921 to 25 December 1991 |
| Grenada | GRULAC | Was a colony of the United Kingdom from 1763 to 7 February 1974 |
| Haiti | GRULAC | |
| Iceland | WEOG | |
| Israel | None / WEOG | Part of a League of Nations mandate under United Kingdom administration from 25 April 1920 to 14 May 1948 |
| Kiribati | Asian / None | Was a colony of the United Kingdom from 1892 to 12 July 1979 |
| North Korea | Asia-Pacific | |
| Kyrgyzstan | Asia-Pacific | Was part of the Soviet Union from 1 February 1926 to 25 December 1991 |
| Laos | Asia-Pacific | Was a colony of France from 1893 to 19 July 1949 |
| Latvia | E. European | Part of the Soviet Union from September 1944 to 21 August 1991 |
| Lesotho | African | Was a colony of the United Kingdom from 1884 to 4 October 1966 |
| Liechtenstein | WEOG | |
| Malawi | African | Was a colony of the United Kingdom from 1891 to 6 July 1964 |
| Maldives | Asia-Pacific | Was a colony of the United Kingdom from 1887 to 26 July 1965 |
| Marshall Islands | Asia-Pacific | Was part of the United Nations Trust Territory of the Pacific Islands under the administration of the United States from 17 July 1947 to 21 October 1986 |
| Federated States of Micronesia | Asia-Pacific | Was part of the United Nations Trust Territory of the Pacific Islands under the administration of the United States from 17 July 1947 to 3 November 1986 |
| Moldova | E. European | Was part of the Soviet Union from 28 June 1940 to 25 December 1991 |
| Monaco | WEOG | |
| Mongolia | Asia-Pacific | |
| Montenegro | E. European | Was part of Yugoslavia from 29 November 1943 to 28 April 1992 |
| Myanmar | Asia-Pacific | Was a colony of the United Kingdom from 1824 to 4 January 1948 |
| Nauru | Asia-Pacific | Was a United Nations Trust Territory administered by the United Kingdom, Australia, and New Zealand from 1 January 1946 to 31 January 1968 |
| North Macedonia | E. European | Was part of Yugoslavia from 29 November 1943 to 3 April 1993 |
| Palau | Asia-Pacific | Was part of the United Nations Trust Territory of the Pacific Islands under the administration of the United States from 17 July 1947 to 1 October 1994 |
| Papua New Guinea | Asia-Pacific | Was administered by Australia in the case of the Territory of Papua from 1905, the Territory of New Guinea as a League of Nations mandate from 1919 and as a unified Territory of Papua and New Guinea from 1949 until 16 September 1975 |
| Saint Kitts and Nevis | GRULAC | Was a colony of the United Kingdom from 1713 to 19 September 1983 |
| Saint Lucia | GRULAC | Was a colony of the United Kingdom from 1803 to 22 February 1979 |
| Samoa | Asia-Pacific | Was a League of Nations mandate under the administration of New Zealand from 17 December 1920 to 25 January 1947, then a United Nations Trust Territory under the administration of New Zealand from 25 January 1947 to 1 January 1962 |
| San Marino | WEOG | |
| São Tomé and Príncipe | African | Was a colony of Portugal until 12 July 1975 |
| Saudi Arabia | Asia-Pacific | Saudi Arabia was elected in the 2013 election, but declined the seat. |
| Serbia | E. European | Was part of Yugoslavia from 31 January 1946 to 27 April 1992 |
| FR Yugoslavia / Serbia and Montenegro | E. European | Was part of Yugoslavia from 29 November 1943 to 27 April 1992 |
| Seychelles | African | Was a colony of the United Kingdom from 1801 to 29 June 1976 |
| Solomon Islands | Asia-Pacific | Was a colony of the United Kingdom from 1893 to 7 July 1978 |
| South Sudan | African | Was part of Anglo-Egyptian Sudan, a condominium of the United Kingdom and Egypt until 1 January 1956, then part of Sudan from 1 January 1956 to 9 July 2011 |
| Suriname | GRULAC | Was a colony of the Netherlands from 1667 to 25 November 1975 |
| Tajikistan | Asia-Pacific | Was part of the Soviet Union from 14 October 1924 to 25 December 1991 |
| Tanganyika | Commonwealth Seat | Was a League of Nations mandate under the administration of the United Kingdom from 20 July 1922 to 11 December 1946, then a United Nations Trust Territory under the administration of the United Kingdom until 9 December 1962, then independent until federation with Zanzibar to form Tanzania |
| Timor-Leste | Asia-Pacific | Was occupied by Indonesia from 7 December 1975 to 31 October 1999 |
| Tonga | Asia-Pacific | Was a protectorate of the United Kingdom from 18 May 1900 to 4 June 1970 |
| Turkmenistan | Asia-Pacific | Was part of the Soviet Union from 13 May 1925 to 8 December 1991 |
| Tuvalu | Asia-Pacific | Was a colony of the United Kingdom from 1892 to 1 October 1978 |
| Uzbekistan | Asia-Pacific | Was part of the Soviet Union from 13 May 1925 to 25 December 1991 |
| Vanuatu | Asia-Pacific | Was a Condominium under joint sovereignty of the United Kingdom and France from 1906 to 30 July 1980 |
| Zanzibar | Commonwealth Seat | Was a colony of the United Kingdom from 27 August 1896 to 10 December 1963, then independent until federation with Tanganyika to form Tanzania on 26 April 1964. |