This list depicts the membership of European countries in selected international organisations and treaties. Table State (51)Only 51 sovereign states are listed, including Kosovo and Vatican which are not UN members.HDIHuman Development Index (2025) GNIGross National Income, List of countries by GNI per capita World Development Indicators database , World Bank, GNI per capita (2025), Atlas method and PPP GDPGDP (nominal) per capita IMF estimate (2025) UNThe United Nations is a world-wide organisation with 193 members, see also; Universal Declaration of Human Rights CoECouncil of Europe is numbering 47 out of 51 European countries and membership is open to all European states which seek European integration, accept the principle of the rule of law and are able and willing to guarantee democracy, fundamental human rights and freedoms with European Court of Human Rights and European Convention on Human Rights, see also European Higher Education Area OSCEOSCE is an international organisation which serves as a forum for political dialogue. Its stated aim is to secure stability in the region (Caucasus, Central Asia, Europe, North America and Russia) based on democratic practices and improved governance EUNumber of countries in Trade bloc: EU (27), EFTA (4), CEFTA (7), other regional blocs (not listed because countries inside are likely, sooner or later, to join EU, some already seriously involved in joining processes); EFTA countries and 4 European microstates marked x, while not EU members, are partially integrated in EU through euro currency, Schengen treaty, EU single market - EEA and Customs Union, see also;European Neighbourhood Policy, Eastern Partnership, Euromediterranean Partnership, Mediterranean Union, Transatlantic Free Trade Area, Eurosphere EEAEuropean Economic Area, see also; Free trade areas in Europe EUCUEuropean Union Customs Union SchengenSchengen Area €Eurozone NATONumber of countries inside military alliance; NATO (30); see also; NATO Cooperation with non-member states, Treaty on Conventional Armed Forces in Europe and Shanghai Cooperation Organisation OECDOECD is an international organisation which serves as a forum for economic dialogue. The bulk of its members are in Europe (23), but some are located in other regions (7) - Members states ESAEuropean Space Agency - Member states WTOWTO - Members and Observers Monaco, San Marino, Kosovo - no official interaction with the WTO, Vatican (Holy See) - special observer status ICCInternational Criminal Court 39 members from Europe VWPVWP is a program of the United States of America which allows citizens of countries with visa refusal rate less than 3% and some specific countries 10% to travel to the US for tourism or business for up to 90 days without having to obtain a visa. All countries participating in the program have high HDI and most are regarded as developed countries; Adjusted Visa Refusal Rate year 2006 , 2007 , 2008 0.810 12,060 12,493 UN CoE OSCE Candidate negotiating ALL NATO WTOICC 0.913 53,230 53,475 UN CoE OSCE EUCU 1 Schengen 2 € 4 ObserverICC VWP 0.811 9,020 10,410 UN CoE OSCE AMDPfP WTOICC 0.930 60,360 67,761 UN CoE OSCE EU EEA EUCU Schengen €PfP OECD ESA WTOICC VWP 0.789 7,360 7,467 UN CoE OSCE AZN PfP Observer 0.824 9,160 11,286 UN OSCE BYR Observer 0.951 59,500 65,112 UN CoE OSCE EU EEA EUCU Schengen € NATO OECD ESA WTOICC VWP 0.804 9,940 10,701 UN CoE OSCE Candidate BAMMAP ObserverICC 0.845 17,78023,848 UN CoE OSCE EU EEA EUCU Schengen € NATO Candidate ECS WTOICC 0.889 25,360 30,030 UN CoE OSCE EU EEA EUCU Schengen € NATO Candidate ECS WTOICC VWP 0.913 36,110 45,409 UN CoE OSCE EU EEA EUCU EU EEA CH freedom of movement € ECS WTOICC 0.915 32,960 39,795 UN CoE OSCE EU EEA EUCU SchengenCZK NATO OECD ESA WTOICC VWP 0.962 77,190 83,445 UN CoE OSCE EU EEA EUCU Schengen DKK 6 NATO OECD ESA WTOICC VWP 0.905 32,310 37,718 UN CoE OSCE EU EEA EUCU Schengen € NATO OECD ESA WTOICC VWP 0.948 55,250 60,130 UN CoE OSCE EU EEA EUCU Schengen € NATO OECD ESA WTOICC VWP 0.920 48,630 52,083 UN CoE OSCE EU EEA EUCU Schengen € NATO OECD ESA WTOICC VWP 0.844 8,990 11,574 UN CoE OSCE Candidate GEL PfP WTOICC 0.959 60,200 65,303 UN CoE OSCE EU EEA EUCU Schengen € NATO OECD ESA WTOICC VWP 0.908 25,360 29,696 UN CoE OSCE EU EEA EUCU Schengen € NATO OECD ESA WTOICC VWP 0.870 23,850 28,430 UN CoE OSCE EU EEA EUCU SchengenHUF NATO OECD ESA WTOICC VWP 0.972 89,220 110,048 UN CoE OSCE EEA Schengen ISK NATO OECD WTOICC VWP 0.949 87,360 140,186 UN CoE OSCE EU EEA EUCU EU EEA CH freedom of movement € PfP OECD ESA WTOICC VWP 0.915 42,080 46,505 UN CoE OSCE EU EEA EUCU Schengen € NATO OECD ESA WTOICC VWP 0.837 13,740 17,503 UN OSCE KZTPfP WTO n/d 7,760 8,958 Applicant Applicant € 5 0.889 24,980 28,913 UN CoE OSCE EU EEA EUCU Schengen € NATO OECD ESA AM WTOICC VWP 0.938 116,380 226,809 UN CoE OSCE EEA Schengen CHF WTOICC VWP 0.895 30,500 36,545 UN CoE OSCE EU EEA EUCU Schengen € NATO OECD ESA AM WTOICC VWP 0.922 95,720 158,733 UN CoE OSCE EU EEA EUCU Schengen € NATO OECD ESA WTOICC VWP 0.924 41,44053,560 UN CoE OSCE EU EEA EUCU Schengen € PfPApplicant ECS WTOICC VWP 0.785 8,050 9,354 UN CoE OSCE Candidate negotiating MDL PfP WTOICC n/d n/d n/d UN CoE OSCE EUCU 1 Schengen 2 € 4Signatory VWP 0.862 14,15016,377 UN CoE OSCE Candidate negotiating € 5 NATO WTOICC 0.955 68,530 79,918 UN CoE OSCE EU EEA EUCU Schengen € NATO OECD ESA WTOICC VWP 0.815 9,490 11,967 UN CoE OSCE Candidate negotiating MKD NATO WTOICC 0.970 97,310 105,877 UN CoE OSCE EEA Schengen NOK NATO OECD ESA WTOICC VWP 0.906 25,520 31,336 UN CoE OSCE EU EEA EUCU SchengenPLN NATO OECD ESA WTOICC VWP 0.890 29,93035,434 UN CoE OSCE EU EEA EUCU Schengen € NATO OECD ESA WTOICC VWP 0.845 20,190 25,693 UN CoE OSCE EU EEA EUCU SchengenRON NATO Candidate ESA WTOICC 0.832 15,960 18,525 UN OSCE ₽ WTO 0.915 53,910 70,187 UN CoE OSCE EUCU 1 Schengen 2 € 4ICC VWP 0.833 13,48017,252 UN CoE OSCE Candidate negotiating RSD PfP ObserverICC 0.880 26,410 31,242 UN CoE OSCE EU EEA EUCU Schengen € NATO OECD ESA AM WTOICC VWP 0.931 35,520 40,630 UN CoE OSCE EU EEA EUCU Schengen € NATO OECD ESA WTOICC VWP 0.918 37,120 41,563 UN CoE OSCE EU EEA EUCU Schengen € NATO OECD ESA WTOICC VWP 0.959 63,010 70,676 UN CoE OSCE EU EEA EUCU SchengenSEK NATO OECD ESA WTOICC VWP 0.970 110,330126,177 UN CoE OSCE bilat 3 Schengen CHF PfP OECD ESA WTOICC VWP 0.853 16,300 19,018 UN CoE OSCE Candidate with frozen negotiations EUCU 1 TRY NATO OECD WTO 0.779 5,510 6,980 UN CoE OSCE Candidate negotiating UAH ApplicantApplicant WTOICC 0.946 54,55061,056 UN CoE OSCE £ NATO OECD ESA WTOICC VWP n/d n/d n/d Observer Observer OSCE Schengen 2 € 4 Observer

Classification of countries according to the United Nations:

Classification of countries according to the World Bank:

Classification of countries according to the IMF:

1 These countries are currently not participating in the EU's single market (EEA), but the EU has common external Customs Union agreements with Turkey (EU-Turkey Customs Union in force since 1995), Andorra (since 1991) and San Marino (since 2002). Monaco participates in the EU customs union through its relationship with France; its ports are administered by the French. Vatican City has a customs union in effect with Italy. 2 Andorra, Monaco, San Marino and Vatican City are not members of Schengen, but act as such via their open borders with Spain, France and Italy, respectively. 3 Switzerland is not an official member of EEA but has bilateral agreements largely with the same content, making it virtually a member. 4 Andorra, Monaco, San Marino and Vatican City are using the euro as their currency through a monetary agreement with the EU. 5 Montenegro and Kosovo unilaterally adopted the euro as their currency and, therefore, have no issuing rights. 6 Currency included in the ERM II mechanism.

Euler diagram

Maps

Notes

See also Co-ordinated organisations Euronest Parliamentary Assembly European integration International organization List of countries in Europe List of European countries by life expectancy List of European countries by number of internet users List of European countries by budget revenues List of European countries by GNI (nominal) per capita List of sovereign states in Europe by net average wage List of conflicts in Europe List of international rankings Organization for Security and Co-operation in Europe statistics Politics of Europe