| UN Member state | Regional Group | Security Council membership as part of another entity |
|---|
 Afghanistan | Asia-Pacific | |
 Andorra | WEOG | |
 Antigua and Barbuda | GRULAC | Was a crown colony, then an associated state of the United Kingdom of Great Britain and Northern Ireland during its 36 years of Security Council membership until 1 November 1981 |
 Armenia | E. European | Was a union republic of the Union of Soviet Socialist Republics during its 45 years of Security Council membership until 23 September 1991 |
 Bahamas | GRULAC | Was a crown colony of the United Kingdom of Great Britain and Northern Ireland during its 27 years of Security Council membership until 10 July 1973 |
 Barbados | GRULAC | Was a crown colony of the United Kingdom of Great Britain and Northern Ireland during its 21 years of Security Council membership until 30 November 1966 |
 Belize | GRULAC | Was a crown colony of the United Kingdom of Great Britain and Northern Ireland during its 35 years of Security Council membership until 21 September 1981 |
 Bhutan | Asia-Pacific | Was a protected state of the United Kingdom of Great Britain and Northern Ireland during its 1 year of Security Council membership until 1947 |
 Brunei | Asia-Pacific | Was a protectorate of the United Kingdom of Great Britain and Northern Ireland during its 38 years of Security Council membership until 1 January 1984 |
 Cambodia | Asia-Pacific | Was a protectorate of France during its 8 years of Security Council membership until 9 November 1953 |
 Central African Republic | African | Was a colony of France during its 14 years of Security Council membership until 13 August 1960 |
 Comoros | African | Was an overseas territory of France during its 29 years of Security Council membership until 6 July 1975 |
 Cyprus | Asia-Pacific | Was a crown colony of the United Kingdom of Great Britain and Northern Ireland during its 14 years of Security Council membership until 16 August 1960 |
 Dominica | GRULAC | Was a crown colony, then an associated state of the United Kingdom of Great Britain and Northern Ireland during its 33 years of Security Council membership until 3 November 1978 |
 East Timor | Asia-Pacific | Was a province of Indonesia ( de facto ) during its 2 years of Security Council membership and an overseas province of Portugal ( de jure ) during its 4 years of Security Council membership until 25 October 1999 |
 El Salvador | GRULAC | |
 Eritrea | African | Was under military administration of the United Kingdom of Great Britain and Northern Ireland until 15 September 1952, then an autonomous region and then a province of Ethiopia during its 10 years of Security Council membership until 24 May 1993 |
 Eswatini | African | Was a protectorate of the United Kingdom of Great Britain and Northern Ireland during its 22 years of Security Council membership until 6 September 1968 |
 Fiji | Asia-Pacific | Was a crown colony of the United Kingdom of Great Britain and Northern Ireland during its 24 years of Security Council membership until 10 October 1970 |
 Georgia | E. European | Was a union republic of the Union of Soviet Socialist Republics during its 45 years of Security Council membership until 9 April 1991 |
 Grenada | GRULAC | Was a crown colony of the United Kingdom of Great Britain and Northern Ireland during its 28 years of Security Council membership until 7 February 1974 |
 Haiti | GRULAC | |
 Iceland | WEOG | |
 Israel | None / WEOG [l] | Part of a League of Nations mandate under administration of the United Kingdom of Great Britain and Northern Ireland during its 2 years of Security Council membership until 14 May 1948 |
 Kiribati | None / Asia-Pacific [m] | Was a crown colony of the United Kingdom of Great Britain and Northern Ireland during its 33 years of Security Council membership until 12 July 1979 |
 Kyrgyzstan | Asia-Pacific | Was a union republic of the Union of Soviet Socialist Republics during its 46 years of Security Council membership until 31 August 1991 |
 Laos | Asia-Pacific | Was a protectorate of France during its 7 years of Security Council membership until 22 October 1953 |
 Latvia | E. European | Was a union republic of the Union of Soviet Socialist Republics during its 44 years of Security Council membership until 4 May 1990 |
 Lesotho | African | Was a crown colony of the United Kingdom of Great Britain and Northern Ireland during its 20 years of Security Council until 4 October 1966 |
 Liechtenstein | WEOG | |
 Malawi | African | Was a protectorate of the United Kingdom of Great Britain and Northern Ireland during its 18 years of Security Council membership until 6 July 1964 |
 Maldives | Asia-Pacific | Was a protected state of the United Kingdom of Great Britain and Northern Ireland during its 19 years of Security Council membership until 26 July 1965 |
 Marshall Islands | Asia-Pacific | Was a district of the Trust Territory of the Pacific Islands under the administration of the United States of America during its 40 years of Security Council membership until 21 October 1986 |
 Federated States of Micronesia | Asia-Pacific | Was a district of the Trust Territory of the Pacific Islands under the administration of the United States of America during its 41 years of Security Council membership until 3 November 1986 |
 Moldova | E. European | Was a union republic of the Union of Soviet Socialist Republics during its 45 years of Security Council membership until 27 August 1991 |
 Monaco | WEOG | |
 Mongolia | Asia-Pacific | |
 Montenegro | E. European | Was a republic of Yugoslavia during its 7 years of Security Council membership until 27 April 1992 [n] |
 Myanmar | Asia-Pacific | Was a crown colony of the United Kingdom of Great Britain and Northern Ireland during its 2 years of Security Council membership until 4 January 1948 |
 Nauru | Asia-Pacific | Was a United Nations trust territory administered by the United Kingdom of Great Britain and Northern Ireland during its 22 years of Security Council membership, Australia during its 4 years of Security Council membership, and New Zealand during its 3 years of Security Council membership until 31 January 1968 |
 North Korea | Asia-Pacific | Was under military occupation of the Union of Soviet Socialist Republics during its 2 years of Security Council membership until 9 September 1948 |
 North Macedonia | E. European | Was a republic of Yugoslavia during its 7 years of Security Council membership until 8 September 1991 |
 Palau | Asia-Pacific | Was a district of the Trust Territory of the Pacific Islands under the administration of the United States of America during its 48 years of Security Council membership until 1 October 1994 |
 Papua New Guinea | Asia-Pacific | Was an external territory of Australia in the case of the Territory of Papua and a League of Nations mandate (later a United Nations trust territory during its union with Papua) in the case of the Territory of New Guinea during its 2 years of Security Council membership until 1 July 1949, then the unified Territory of Papua and New Guinea in Australia during its 4 years of Security Council membership until 16 September 1975 |
 Saint Kitts and Nevis | GRULAC | Was a crown colony, then an associated state of the United Kingdom of Great Britain and Northern Ireland during its 37 years of Security Council membership until 19 September 1983 |
 Saint Lucia | GRULAC | Was a crown colony, then an associated state of the United Kingdom of Great Britain and Northern Ireland during its 33 years of Security Council membership until 22 February 1979 |
 Samoa | Asia-Pacific | Was a League of Nations mandate, then a United Nations trust territory, under the administration of New Zealand during its 2 years of Security Council membership until 1 January 1962 |
 San Marino | WEOG | |
 São Tomé and Príncipe | African | |
 Saudi Arabia | Asia-Pacific | Saudi Arabia was elected in the 2013 election, but declined the seat. [31] |
 Serbia | E. European | Was a republic of Yugoslavia during its 7 years of Security Council membership until 27 April 1992 [o] |
 Seychelles | African | Was a crown colony of the United Kingdom of Great Britain and Northern Ireland during its 30 years of Security Council membership until 29 July 1976 |
 Solomon Islands | Asia-Pacific | Was a protectorate of the United Kingdom of Great Britain and Northern Ireland during its 32 years of Security Council membership until 7 July 1978 |
 South Sudan | African | Was a condominium of the United Kingdom of Great Britain and Northern Ireland and Egypt during its 10 years and 3 years of Security Council membership until 1 January 1956, then part of Sudan during its 2 years of Security Council membership until 9 July 2011 |
 Suriname | GRULAC | Was a colony, then a constituent country of the Kingdom of the Netherlands during its 5 years of Security Council membership until 25 November 1975 |
 Tajikistan | Asia-Pacific | Was a union republic of the Union of Soviet Socialist Republics during its 45 years of Security Council membership until 9 September 1991 |
 Tonga | Asia-Pacific | Was a protected state of the United Kingdom of Great Britain and Northern Ireland during its 24 years of Security Council membership until 4 June 1970 |
 Turkmenistan | Asia-Pacific | Was a union republic of the Union of Soviet Socialist Republics during its 46 years of Security Council membership until 27 October 1991 |
 Tuvalu | Asia-Pacific | Was a crown colony of the United Kingdom of Great Britain and Northern Ireland during its 32 years of Security Council membership until 1 October 1978 |
 Uzbekistan | Asia-Pacific | Was a union republic of the Union of Soviet Socialist Republics during its 45 years of Security Council membership until 31 August 1991 |
 Vanuatu | Asia-Pacific | Was a condominium under joint sovereignty of the United Kingdom of Great Britain and Northern Ireland and France during its 34 years of Security Council membership until 30 July 1980 |
