A

• Member states of the African Union (15 C, 57 P)
• Member states of the Arab League (22 C, 23 P)
• Member states of ASEAN (10 C, 11 P)

B

• BRICS nations (1 C, 11 P)

C

• Member states of the Caribbean Community (10 C, 15 P)
• Member states of the Collective Security Treaty Organization (5 C, 6 P)
• Member states of the Commonwealth of Independent States (9 P)
• Member states of the Commonwealth of Nations (58 C, 60 P)
• Member states of the Community of Portuguese Language Countries (9 C, 10 P)
• Member states of the Council of Europe (2 C, 31 P)

D

• Members of the Delian League (3 C, 289 P)
• Developing 8 Countries member states (9 P)
• Member states of the Dutch Language Union (3 P)

E

• Member states of the Eurasian Economic Union (5 P)
• Member states of the European Free Trade Association (4 C, 6 P)
• Member states of the European Union (28 C, 30 P)

F

• Member states of the Organisation internationale de la Francophonie (33 C, 48 P)

G

• G15 nations (17 P)
• G20 members (21 P)
• Member states of the Gulf Cooperation Council (6 P)

M

• Member states of Mercosur (4 C, 6 P)

N

• Member states of NATO (32 C, 34 P)
• Members of the Nordic Council (8 P)

O

• OECD member economies (40 P)
• Member states of OPEC (1 C, 12 P)
• Member states of the Organisation of Eastern Caribbean States (10 C, 10 P)
• Member states of the Organisation of Islamic Cooperation (58 P)
• Member states of the Organization of Turkic States (5 P)

S

• Member states of the South Asian Association for Regional Cooperation (9 P)

T

• Member states of the Three Seas Initiative (12 P)
• Members of the International Organization of Turkic Culture (6 P)

U

• Member states of the Union for the Mediterranean (36 P)
• Member states of the Union of South American Nations (6 P)
• Member states of the United Nations (196 P)
• Members of the Unrepresented Nations and Peoples Organization (4 C, 89 P)

W

• World Trade Organization member economies (134 P)

• Member state

A

• Member states of the African Union
• Member states of ALBA
• Member states of the Arab League
• Member states of ASEAN

B

• Member states of BRICS

C

• Member states of the Caribbean Community
• Member states of the Commonwealth of Nations
• Member states of the Community of Portuguese Language Countries
• Member states of the Council of Europe

D

• Member states of the Dutch Language Union

E

• Member states of the Eurasian Economic Union
• Member states of the European Aviation Safety Agency
• Member state of the European Union
• Member states of the Eurozone

F

• Member states of the Organisation internationale de la Francophonie

G

• G20 developing nations
• G33 (developing countries)

I

• Member states of the International Atomic Energy Agency
• Member states of the International Labour Organization
• Countries in the International Organization for Standardization

L

• Member states of the League of Nations
• List of member states of the World Organisation for Animal Health
• List of World Bank members

M

• Member states of the International Organization of the Francophonie
• Member states of the Latin Union
• Member states of Mercosur

N

• Member states of NATO

O

• Member states of the Organisation for the Prohibition of Chemical Weapons
• Member states of the Organisation of Islamic Cooperation
• Member states of the Organization of American States
• Member states of the Organization of the Black Sea Economic Cooperation

S

• Member states of the Shanghai Cooperation Organisation
• Member states of the Union of South American Nations

U

• Member states of UNESCO
• Member states of the United Nations
• List of members of the United Nations Security Council
• List of members of the Universal Postal Union

V

• Member states of the Venice Commission

W

• Member states of the World Intellectual Property Organization
• Member states of the World Customs Organization
• Member states of the World Sports Alliance
• Member states of the World Trade Organization