List of European countries by membership in international organisations

A darker shade indicates a higher level of integration in international organisations.

This list depicts the membership of European countries in selected international organisations and treaties.

Table

State  (51) [1]	HDI [2]	GNI [3]	GDP [4]	UN [5]	CoE [6]	OSCE [7]	EU [8]	EEA [9]	EUCU [10]	Schengen [11]	€ [12]	NATO [13]	OECD [14]	ESA [15]	WTO [16]	ICC [17]	VWP [18]
Albania	0.810	8,690	11,108	UN	CoE	OSCE	Candidate negotiating				ALL	NATO			WTO	ICC
Andorra	0.913	48,870	49,451	UN	CoE	OSCE			EUCU 1	Schengen 2	€ 4				Observer	ICC	VWP
Armenia	0.811	7,780	8,969	UN	CoE	OSCE					AMD	PfP			WTO	ICC
Austria	0.930	54,160	61,694	UN	CoE	OSCE	EU	EEA	EUCU	Schengen	€	PfP	OECD	ESA	WTO	ICC	VWP
Azerbaijan	0.789	7,310	7,365	UN	CoE	OSCE					AZN	PfP			Observer
Belarus	0.824	8,240	9,435	UN		OSCE					BYR				Observer
Belgium	0.951	54,840	60,418	UN	CoE	OSCE	EU	EEA	EUCU	Schengen	€	NATO	OECD	ESA	WTO	ICC	VWP
Bosnia and Herzegovina	0.804	8,630	9,648	UN	CoE	OSCE	Candidate				BAM	MAP			Observer	ICC
Bulgaria	0.845	15,320	20,426	UN	CoE	OSCE	EU	EEA	EUCU	Schengen	BGN 6	NATO	Candidate	ECS	WTO	ICC
Croatia	0.889	22,080	26,958	UN	CoE	OSCE	EU	EEA	EUCU	Schengen	€	NATO	Candidate	ECS	WTO	ICC	VWP
Cyprus	0.913	32,980	42,413	UN	CoE	OSCE	EU	EEA	EUCU	EU EEA CH freedom of movement	€			ECS	WTO	ICC
Czechia	0.915	29,140	35,161	UN	CoE	OSCE	EU	EEA	EUCU	Schengen	CZK	NATO	OECD	ESA	WTO	ICC	VWP
Denmark	0.962	73,790	76,581	UN	CoE	OSCE	EU	EEA	EUCU	Schengen	DKK 6	NATO	OECD	ESA	WTO	ICC	VWP
Estonia	0.905	28,700	34,041	UN	CoE	OSCE	EU	EEA	EUCU	Schengen	€	NATO	OECD	ESA	WTO	ICC	VWP
Finland	0.948	51,710	56,084	UN	CoE	OSCE	EU	EEA	EUCU	Schengen	€	NATO	OECD	ESA	WTO	ICC	VWP
France	0.920	45,180	48,982	UN	CoE	OSCE	EU	EEA	EUCU	Schengen	€	NATO	OECD	ESA	WTO	ICC	VWP
Georgia	0.844	8,200	10,126	UN	CoE	OSCE	Candidate				GEL	PfP			WTO	ICC
Germany	0.959	54,960	59,925	UN	CoE	OSCE	EU	EEA	EUCU	Schengen	€	NATO	OECD	ESA	WTO	ICC	VWP
Greece	0.908	23,030	27,170	UN	CoE	OSCE	EU	EEA	EUCU	Schengen	€	NATO	OECD	ESA	WTO	ICC	VWP
Hungary	0.870	20,690	25,916	UN	CoE	OSCE	EU	EEA	EUCU	Schengen	HUF	NATO	OECD	ESA	WTO	ICC	VWP
Iceland	0.972	78,480	98,150	UN	CoE	OSCE		EEA		Schengen	ISK	NATO	OECD		WTO	ICC	VWP
Ireland	0.949	77,920	129,132	UN	CoE	OSCE	EU	EEA	EUCU	EU EEA CH freedom of movement	€	PfP	OECD	ESA	WTO	ICC	VWP
Italy	0.915	38,290	43,161	UN	CoE	OSCE	EU	EEA	EUCU	Schengen	€	NATO	OECD	ESA	WTO	ICC	VWP
Kazakhstan	0.837	12,150	14,723	UN		OSCE					KZT	PfP			WTO
Kosovo	n/d	7,180	8,033		Applicant		Applicant				€ 5
Latvia	0.889	21,970	25,630	UN	CoE	OSCE	EU	EEA	EUCU	Schengen	€	NATO	OECD	ESA AM	WTO	ICC	VWP
Liechtenstein	0.938	116,380	231,713	UN	CoE	OSCE		EEA		Schengen	CHF				WTO	ICC	VWP
Lithuania	0.895	26,950	32,982	UN	CoE	OSCE	EU	EEA	EUCU	Schengen	€	NATO	OECD	ESA AM	WTO	ICC	VWP
Luxembourg	0.922	91,470	146,818	UN	CoE	OSCE	EU	EEA	EUCU	Schengen	€	NATO	OECD	ESA	WTO	ICC	VWP
Malta	0.924	34,660	49,278	UN	CoE	OSCE	EU	EEA	EUCU	Schengen	€	PfP	Applicant	ECS	WTO	ICC	VWP
Moldova	0.785	6,940	8,239	UN	CoE	OSCE	Candidate negotiating				MDL	PfP			WTO	ICC
Monaco	n/d	n/d	n/d	UN	CoE	OSCE			EUCU 1	Schengen 2	€ 4					Signatory	VWP
Montenegro	0.862	12,020	14,986	UN	CoE	OSCE	Candidate negotiating				€ 5	NATO			WTO	ICC
Netherlands	0.955	62,840	73,174	UN	CoE	OSCE	EU	EEA	EUCU	Schengen	€	NATO	OECD	ESA	WTO	ICC	VWP
North Macedonia	0.815	8,360	10,378	UN	CoE	OSCE	Candidate negotiating				MKD	NATO			WTO	ICC
Norway	0.970	98,280	91,884	UN	CoE	OSCE		EEA		Schengen	NOK	NATO	OECD	ESA	WTO	ICC	VWP
Poland	0.906	21,560	28,485	UN	CoE	OSCE	EU	EEA	EUCU	Schengen	PLN	NATO	OECD	ESA	WTO	ICC	VWP
Portugal	0.890	26,620	31,415	UN	CoE	OSCE	EU	EEA	EUCU	Schengen	€	NATO	OECD	ESA	WTO	ICC	VWP
Romania	0.845	17,600	22,436	UN	CoE	OSCE	EU	EEA	EUCU	Schengen	RON	NATO	Candidate	ESA	WTO	ICC
Russia	0.832	15,320	17,446	UN		OSCE					₽				WTO
San Marino	0.915	53,930	65,269	UN	CoE	OSCE			EUCU 1	Schengen 2	€ 4					ICC	VWP
Serbia	0.833	11,570	15,322	UN	CoE	OSCE	Candidate negotiating				RSD	PfP			Observer	ICC
Slovakia	0.880	23,900	28,524	UN	CoE	OSCE	EU	EEA	EUCU	Schengen	€	NATO	OECD	ESA AM	WTO	ICC	VWP
Slovenia	0.931	31,640	37,178	UN	CoE	OSCE	EU	EEA	EUCU	Schengen	€	NATO	OECD	ESA	WTO	ICC	VWP
Spain	0.918	33,410	38,040	UN	CoE	OSCE	EU	EEA	EUCU	Schengen	€	NATO	OECD	ESA	WTO	ICC	VWP
Sweden	0.959	58,820	62,036	UN	CoE	OSCE	EU	EEA	EUCU	Schengen	SEK	NATO	OECD	ESA	WTO	ICC	VWP
Switzerland	0.970	95,900	111,047	UN	CoE	OSCE		bilat 3		Schengen	CHF	PfP	OECD	ESA	WTO	ICC	VWP
Turkey	0.853	13,150	18,198	UN	CoE	OSCE	Candidacy suspended		EUCU 1		TRY	NATO	OECD		WTO
Ukraine	0.779	5,220	6,382	UN	CoE	OSCE	Candidate negotiating				UAH	Applicant	Applicant		WTO	ICC
United Kingdom	0.946	48,610	56,661	UN	CoE	OSCE					£	NATO	OECD	ESA	WTO	ICC	VWP
Vatican City	n/d	n/d	n/d	Observer	Observer	OSCE				Schengen 2	€ 4				Observer

Classification of countries according to the United Nations:

  Very high human development (0.800 or higher)

  High human development (0.700 - 0.799)

Classification of countries according to the World Bank:

  high income (> $13,935)

  upper middle income ($4,496 - $13,935)

Classification of countries according to the IMF:

  Advanced Economies

  Emerging Market and Developing Economies

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

• 
  Council of Europe
• 
  Organization for Security and Co-operation in Europe
• 
  European Union
• 
  North Atlantic Treaty Organization

Notes

1. Only 51 sovereign states are listed, including Kosovo and Vatican which are not UN members.
2. Human Development Index (2025)
3. Gross National Income, List of countries by GNI per capita World Development Indicators database , World Bank, GNI per capita (2025), Atlas method and PPP
4. GDP (nominal) per capita IMF estimate (2025)
5. The United Nations is a world-wide organisation with 193 members, see also; Universal Declaration of Human Rights
6. Council 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
7. OSCE is an international organization 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
8. Number 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
9. European Economic Area, see also; Free trade areas in Europe
10. European Union Customs Union
11. Schengen Area
12. Eurozone
13. Number 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
14. OECD is an international organization 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
15. European Space Agency - Member states
16. WTO - Members and Observers Monaco, San Marino, Kosovo - no official interaction with the WTO, Vatican (Holy See) - special observer status
17. International Criminal Court 39 members from Europe
18. VWP 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 Archived 2013-04-05 at the Wayback Machine year 2006 Archived 2013-04-05 at the Wayback Machine , 2007 Archived 2009-02-26 at the Wayback Machine , 2008 Archived 2011-06-22 at the Wayback Machine

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