List of European Union member states by political system
Encyclopedia
This is a list of European Union member states, their forms of government
Government
Government refers to the legislators, administrators, and arbitrators in the administrative bureaucracy who control a state at a given time, and to the system of government by which they are organized...

 and their parliament
Parliament
A parliament is a legislature, especially in those countries whose system of government is based on the Westminster system modeled after that of the United Kingdom. The name is derived from the French , the action of parler : a parlement is a discussion. The term came to mean a meeting at which...

s. The European Union
European Union
The European Union is an economic and political union of 27 independent member states which are located primarily in Europe. The EU traces its origins from the European Coal and Steel Community and the European Economic Community , formed by six countries in 1958...

 is a sui generis
Sui generis
Sui generis is a Latin expression, literally meaning of its own kind/genus or unique in its characteristics. The expression is often used in analytic philosophy to indicate an idea, an entity, or a reality which cannot be included in a wider concept....

supranational union
Supranational union
Supranationalism is a method of decision-making in multi-national political communities, wherein power is transferred or delegated to an authority by governments of member states. The concept of supranational union is sometimes used to describe the European Union, as a new type of political entity...

 of democratic
Democracy
Democracy is generally defined as a form of government in which all adult citizens have an equal say in the decisions that affect their lives. Ideally, this includes equal participation in the proposal, development and passage of legislation into law...

 states
Sovereign state
A sovereign state, or simply, state, is a state with a defined territory on which it exercises internal and external sovereignty, a permanent population, a government, and the capacity to enter into relations with other sovereign states. It is also normally understood to be a state which is neither...

. At a European Council
European Council
The European Council is an institution of the European Union. It comprises the heads of state or government of the EU member states, along with the President of the European Commission and the President of the European Council, currently Herman Van Rompuy...

 Summit held in Copenhagen
Copenhagen
Copenhagen is the capital and largest city of Denmark, with an urban population of 1,199,224 and a metropolitan population of 1,930,260 . With the completion of the transnational Øresund Bridge in 2000, Copenhagen has become the centre of the increasingly integrating Øresund Region...

, Denmark
Denmark
Denmark is a Scandinavian country in Northern Europe. The countries of Denmark and Greenland, as well as the Faroe Islands, constitute the Kingdom of Denmark . It is the southernmost of the Nordic countries, southwest of Sweden and south of Norway, and bordered to the south by Germany. Denmark...

, on 21 June and 22 June 1993, the European Union defined the Copenhagen criteria
Copenhagen criteria
The Copenhagen criteria are the rules that define whether a country is eligible to join the European Union. The criteria require that a state has the institutions to preserve democratic governance and human rights, has a functioning market economy, and accepts the obligations and intent of the EU...

 regarding the conditions a candidate country has to fulfill to be considered eligible for accession to the European Union
Enlargement of the European Union
The Enlargement of the European Union is the process of expanding the European Union through the accession of new member states. This process began with the Inner Six, who founded the European Coal and Steel Community in 1952...

:



Consequently, all European Union member states are directly elected
Direct election
Direct election is a term describing a system of choosing political officeholders in which the voters directly cast ballots for the person, persons or political party that they desire to see elected. The method by which the winner or winners of a direct election are chosen depends upon the...

 democracies that are considered to be "free
Freedom (political)
Political freedom is a central philosophy in Western history and political thought, and one of the most important features of democratic societies...

" according to the criteria of Freedom House
Freedom House
Freedom House is an international non-governmental organization based in Washington, D.C. that conducts research and advocacy on democracy, political freedom and human rights...

 (with all of them being rated 1/1 except for Greece
Greece
Greece , officially the Hellenic Republic , and historically Hellas or the Republic of Greece in English, is a country in southeastern Europe....

 and Italy
Italy
Italy , officially the Italian Republic languages]] under the European Charter for Regional or Minority Languages. In each of these, Italy's official name is as follows:;;;;;;;;), is a unitary parliamentary republic in South-Central Europe. To the north it borders France, Switzerland, Austria and...

 with 1/2, and Bulgaria
Bulgaria
Bulgaria , officially the Republic of Bulgaria , is a parliamentary democracy within a unitary constitutional republic in Southeast Europe. The country borders Romania to the north, Serbia and Macedonia to the west, Greece and Turkey to the south, as well as the Black Sea to the east...

, Latvia
Latvia
Latvia , officially the Republic of Latvia , is a country in the Baltic region of Northern Europe. It is bordered to the north by Estonia , to the south by Lithuania , to the east by the Russian Federation , to the southeast by Belarus and shares maritime borders to the west with Sweden...

 and Romania
Romania
Romania is a country located at the crossroads of Central and Southeastern Europe, on the Lower Danube, within and outside the Carpathian arch, bordering on the Black Sea...

 with 2/2). As of 2011, all European Union member states are representative democracies
Representative democracy
Representative democracy is a form of government founded on the principle of elected individuals representing the people, as opposed to autocracy and direct democracy...

; however, they do not all have the same political system, with most of the differences arising from different historical backgrounds.

Many of the states in the neighbourhood of the European Union are not considered to be "free" by the same criteria. Most European states neighbouring the European Union are considered to be "free" or "partly free" by Freedom House
Freedom House
Freedom House is an international non-governmental organization based in Washington, D.C. that conducts research and advocacy on democracy, political freedom and human rights...

, with the exceptions of Azerbaijan
Azerbaijan
Azerbaijan , officially the Republic of Azerbaijan is the largest country in the Caucasus region of Eurasia. Located at the crossroads of Western Asia and Eastern Europe, it is bounded by the Caspian Sea to the east, Russia to the north, Georgia to the northwest, Armenia to the west, and Iran to...

, Belarus
Belarus
Belarus , officially the Republic of Belarus, is a landlocked country in Eastern Europe, bordered clockwise by Russia to the northeast, Ukraine to the south, Poland to the west, and Lithuania and Latvia to the northwest. Its capital is Minsk; other major cities include Brest, Grodno , Gomel ,...

 and Russia
Russia
Russia or , officially known as both Russia and the Russian Federation , is a country in northern Eurasia. It is a federal semi-presidential republic, comprising 83 federal subjects...

. On the other hand, almost all of the states in North Africa
North Africa
North Africa or Northern Africa is the northernmost region of the African continent, linked by the Sahara to Sub-Saharan Africa. Geopolitically, the United Nations definition of Northern Africa includes eight countries or territories; Algeria, Egypt, Libya, Morocco, South Sudan, Sudan, Tunisia, and...

 and Southwest Asia
Southwest Asia
Western Asia, West Asia, Southwest Asia or Southwestern Asia are terms that describe the westernmost portion of Asia. The terms are partly coterminous with the Middle East, which describes a geographical position in relation to Western Europe rather than its location within Asia...

 that neighbour the European Union are not considered to be "free", with the exception of Israel
Israel
The State of Israel is a parliamentary republic located in the Middle East, along the eastern shore of the Mediterranean Sea...

.

Monarchism and republicanism

At present, seven monarchies
Monarchy
A monarchy is a form of government in which the office of head of state is usually held until death or abdication and is often hereditary and includes a royal house. In some cases, the monarch is elected...

 are members of the European Union: Belgium
Belgium
Belgium , officially the Kingdom of Belgium, is a federal state in Western Europe. It is a founding member of the European Union and hosts the EU's headquarters, and those of several other major international organisations such as NATO.Belgium is also a member of, or affiliated to, many...

, Denmark
Denmark
Denmark is a Scandinavian country in Northern Europe. The countries of Denmark and Greenland, as well as the Faroe Islands, constitute the Kingdom of Denmark . It is the southernmost of the Nordic countries, southwest of Sweden and south of Norway, and bordered to the south by Germany. Denmark...

, Luxembourg
Luxembourg
Luxembourg , officially the Grand Duchy of Luxembourg , is a landlocked country in western Europe, bordered by Belgium, France, and Germany. It has two principal regions: the Oesling in the North as part of the Ardennes massif, and the Gutland in the south...

, the Netherlands
Netherlands
The Netherlands is a constituent country of the Kingdom of the Netherlands, located mainly in North-West Europe and with several islands in the Caribbean. Mainland Netherlands borders the North Sea to the north and west, Belgium to the south, and Germany to the east, and shares maritime borders...

, Spain
Spain
Spain , officially the Kingdom of Spain languages]] under the European Charter for Regional or Minority Languages. In each of these, Spain's official name is as follows:;;;;;;), is a country and member state of the European Union located in southwestern Europe on the Iberian Peninsula...

, Sweden
Sweden
Sweden , officially the Kingdom of Sweden , is a Nordic country on the Scandinavian Peninsula in Northern Europe. Sweden borders with Norway and Finland and is connected to Denmark by a bridge-tunnel across the Öresund....

 and the United Kingdom
United Kingdom
The United Kingdom of Great Britain and Northern IrelandIn the United Kingdom and Dependencies, other languages have been officially recognised as legitimate autochthonous languages under the European Charter for Regional or Minority Languages...

. All seven monarchies in the European Union are constitutional monarchies
Constitutional monarchy
Constitutional monarchy is a form of government in which a monarch acts as head of state within the parameters of a constitution, whether it be a written, uncodified or blended constitution...

, which means that the monarch does not influence the politics of the monarch's country. Either the monarch is legally prohibited from doing so, or the monarch does not utilise the political powers vested in the office by convention
Constitutional convention (political custom)
A constitutional convention is an informal and uncodified procedural agreement that is followed by the institutions of a state. In some states, notably those Commonwealth of Nations states that follow the Westminster system and whose political systems derive from British constitutional law, most...

. At the dawn of the 20th century, France
France
The French Republic , The French Republic , The French Republic , (commonly known as France , is a unitary semi-presidential republic in Western Europe with several overseas territories and islands located on other continents and in the Indian, Pacific, and Atlantic oceans. Metropolitan France...

 was the only republic
Republic
A republic is a form of government in which the people, or some significant portion of them, have supreme control over the government and where offices of state are elected or chosen by elected people. In modern times, a common simplified definition of a republic is a government where the head of...

 among the future members states of the European Union; the ascent of republicanism
Republicanism
Republicanism is the ideology of governing a nation as a republic, where the head of state is appointed by means other than heredity, often elections. The exact meaning of republicanism varies depending on the cultural and historical context...

 to the political mainstream only started at the beginning of the 20th century. Public opinion
Public opinion
Public opinion is the aggregate of individual attitudes or beliefs held by the adult population. Public opinion can also be defined as the complex collection of opinions of many different people and the sum of all their views....

 is currently strongly in favour of keeping the monarchy in the remaining seven monarchies in the European Union, and there is currently no ongoing campaign with popular support to abolish monarchy in any of them.

Form of government

There are three types of government systems in European politics: in a presidential system
Presidential system
A presidential system is a system of government where an executive branch exists and presides separately from the legislature, to which it is not responsible and which cannot, in normal circumstances, dismiss it....

, the president is the head of state
Head of State
A head of state is the individual that serves as the chief public representative of a monarchy, republic, federation, commonwealth or other kind of state. His or her role generally includes legitimizing the state and exercising the political powers, functions, and duties granted to the head of...

 and the head of government
Head of government
Head of government is the chief officer of the executive branch of a government, often presiding over a cabinet. In a parliamentary system, the head of government is often styled prime minister, chief minister, premier, etc...

; in a semi-presidential system
Semi-presidential system
The semi-presidential system is a system of government in which a president and a prime minister are both active participants in the day-to-day administration of the state...

, the president and the prime minister share a number of competences; finally, in a parliamentary system
Parliamentary system
A parliamentary system is a system of government in which the ministers of the executive branch get their democratic legitimacy from the legislature and are accountable to that body, such that the executive and legislative branches are intertwined....

, the president is a ceremonial figurehead
Figurehead (metaphor)
In politics, a figurehead is a person who holds de jure an important title or office yet de facto executes little actual power, most commonly limited by convention rather than law. The metaphor derives from the carved figurehead at the prow of a sailing ship...

 who has few political competences. As with the definition of constitutional monarchies, sometimes the president does have non-ceremonial competences, but does not use them by constitutional convention; this is the case in Austria
Austria
Austria , officially the Republic of Austria , is a landlocked country of roughly 8.4 million people in Central Europe. It is bordered by the Czech Republic and Germany to the north, Slovakia and Hungary to the east, Slovenia and Italy to the south, and Switzerland and Liechtenstein to the...

, for instance.

By definition, modern democratic constitutional monarchies are parliamentary, as there is no elected head of state who could assume non-ceremonial competences; of the twenty republican member states of the European Union, only one is a presidential republic (Cyprus
Cyprus
Cyprus , officially the Republic of Cyprus , is a Eurasian island country, member of the European Union, in the Eastern Mediterranean, east of Greece, south of Turkey, west of Syria and north of Egypt. It is the third largest island in the Mediterranean Sea.The earliest known human activity on the...

) and three are semi-presidential republic (Finland
Finland
Finland , officially the Republic of Finland, is a Nordic country situated in the Fennoscandian region of Northern Europe. It is bordered by Sweden in the west, Norway in the north and Russia in the east, while Estonia lies to its south across the Gulf of Finland.Around 5.4 million people reside...

, France
France
The French Republic , The French Republic , The French Republic , (commonly known as France , is a unitary semi-presidential republic in Western Europe with several overseas territories and islands located on other continents and in the Indian, Pacific, and Atlantic oceans. Metropolitan France...

 and Romania
Romania
Romania is a country located at the crossroads of Central and Southeastern Europe, on the Lower Danube, within and outside the Carpathian arch, bordering on the Black Sea...

).

Degree of self-governance

Most of the European Union's member states are unitary state
Unitary state
A unitary state is a state governed as one single unit in which the central government is supreme and any administrative divisions exercise only powers that their central government chooses to delegate...

s, which means that most of the competences lie with the central government
Central government
A central government also known as a national government, union government and in federal states, the federal government, is the government at the level of the nation-state. The structure of central governments varies from institution to institution...

 and only minor or local issues are within the authority of regional governments. However, three states are federation
Federation
A federation , also known as a federal state, is a type of sovereign state characterized by a union of partially self-governing states or regions united by a central government...

s (Austria
Austria
Austria , officially the Republic of Austria , is a landlocked country of roughly 8.4 million people in Central Europe. It is bordered by the Czech Republic and Germany to the north, Slovakia and Hungary to the east, Slovenia and Italy to the south, and Switzerland and Liechtenstein to the...

, Belgium
Belgium
Belgium , officially the Kingdom of Belgium, is a federal state in Western Europe. It is a founding member of the European Union and hosts the EU's headquarters, and those of several other major international organisations such as NATO.Belgium is also a member of, or affiliated to, many...

 and Germany
Germany
Germany , officially the Federal Republic of Germany , is a federal parliamentary republic in Europe. The country consists of 16 states while the capital and largest city is Berlin. Germany covers an area of 357,021 km2 and has a largely temperate seasonal climate...

) of states or region
Region
Region is most commonly found as a term used in terrestrial and astrophysics sciences also an area, notably among the different sub-disciplines of geography, studied by regional geographers. Regions consist of subregions that contain clusters of like areas that are distinctive by their uniformity...

s with equal competences, and six other states have either devolved
Devolution
Devolution is the statutory granting of powers from the central government of a sovereign state to government at a subnational level, such as a regional, local, or state level. Devolution can be mainly financial, e.g. giving areas a budget which was formerly administered by central government...

 certain powers to special regions or are federacies
Federacy
A federacy is a form of government where one or several substate units enjoy considerably more independence than the majority of the substate units. To some extent, such an arrangement can be considered as similar to asymmetric federalism.-Description:...

 (or both):
  • federacies:
    • in Denmark
      Denmark
      Denmark is a Scandinavian country in Northern Europe. The countries of Denmark and Greenland, as well as the Faroe Islands, constitute the Kingdom of Denmark . It is the southernmost of the Nordic countries, southwest of Sweden and south of Norway, and bordered to the south by Germany. Denmark...

      , the Faroe Islands
      Faroe Islands
      The Faroe Islands are an island group situated between the Norwegian Sea and the North Atlantic Ocean, approximately halfway between Scotland and Iceland. The Faroe Islands are a self-governing territory within the Kingdom of Denmark, along with Denmark proper and Greenland...

       and Greenland
      Greenland
      Greenland is an autonomous country within the Kingdom of Denmark, located between the Arctic and Atlantic Oceans, east of the Canadian Arctic Archipelago. Though physiographically a part of the continent of North America, Greenland has been politically and culturally associated with Europe for...

       are autonomous (and neither is part of the European Union);
    • in Finland
      Finland
      Finland , officially the Republic of Finland, is a Nordic country situated in the Fennoscandian region of Northern Europe. It is bordered by Sweden in the west, Norway in the north and Russia in the east, while Estonia lies to its south across the Gulf of Finland.Around 5.4 million people reside...

      , Åland has substantial autonomy;
    • in France
      France
      The French Republic , The French Republic , The French Republic , (commonly known as France , is a unitary semi-presidential republic in Western Europe with several overseas territories and islands located on other continents and in the Indian, Pacific, and Atlantic oceans. Metropolitan France...

      , the collectivité
      Collectivité d'outre-mer
      The French overseas collectivities , like the French regions are first-order administrative divisions of France. The COMs include some former French overseas territories and other French overseas entities with a particular status, all of which became COMs by constitutional reform on 28 March...

       sui generis
      Sui generis
      Sui generis is a Latin expression, literally meaning of its own kind/genus or unique in its characteristics. The expression is often used in analytic philosophy to indicate an idea, an entity, or a reality which cannot be included in a wider concept....

      New Caledonia
      New Caledonia
      New Caledonia is a special collectivity of France located in the southwest Pacific Ocean, east of Australia and about from Metropolitan France. The archipelago, part of the Melanesia subregion, includes the main island of Grande Terre, the Loyalty Islands, the Belep archipelago, the Isle of...

       (which is not part of the European Union) has a large degree of autonomy;
    • in the Netherlands
      Netherlands
      The Netherlands is a constituent country of the Kingdom of the Netherlands, located mainly in North-West Europe and with several islands in the Caribbean. Mainland Netherlands borders the North Sea to the north and west, Belgium to the south, and Germany to the east, and shares maritime borders...

      , the Caribbean
      Caribbean
      The Caribbean is a crescent-shaped group of islands more than 2,000 miles long separating the Gulf of Mexico and the Caribbean Sea, to the west and south, from the Atlantic Ocean, to the east and north...

       island groups of Aruba
      Aruba
      Aruba is a 33 km-long island of the Lesser Antilles in the southern Caribbean Sea, located 27 km north of the coast of Venezuela and 130 km east of Guajira Peninsula...

      , Curaçao
      Curaçao
      Curaçao is an island in the southern Caribbean Sea, off the Venezuelan coast. The Country of Curaçao , which includes the main island plus the small, uninhabited island of Klein Curaçao , is a constituent country of the Kingdom of the Netherlands...

       and Sint Maarten are equal partners to the Netherlands within the Kingdom of the Netherlands
      Kingdom of the Netherlands
      The Kingdom of the Netherlands is a sovereign state and constitutional monarchy with territory in Western Europe and in the Caribbean. The four parts of the Kingdom—Aruba, Curaçao, the Netherlands, and Sint Maarten—are referred to as "countries", and participate on a basis of equality...

      ;
    • in the United Kingdom
      United Kingdom
      The United Kingdom of Great Britain and Northern IrelandIn the United Kingdom and Dependencies, other languages have been officially recognised as legitimate autochthonous languages under the European Charter for Regional or Minority Languages...

      , the Channel Islands
      Channel Islands
      The Channel Islands are an archipelago of British Crown Dependencies in the English Channel, off the French coast of Normandy. They include two separate bailiwicks: the Bailiwick of Guernsey and the Bailiwick of Jersey...

       – Guernsey
      Guernsey
      Guernsey, officially the Bailiwick of Guernsey is a British Crown dependency in the English Channel off the coast of Normandy.The Bailiwick, as a governing entity, embraces not only all 10 parishes on the Island of Guernsey, but also the islands of Herm, Jethou, Burhou, and Lihou and their islet...

       and Jersey
      Jersey
      Jersey, officially the Bailiwick of Jersey is a British Crown Dependency off the coast of Normandy, France. As well as the island of Jersey itself, the bailiwick includes two groups of small islands that are no longer permanently inhabited, the Minquiers and Écréhous, and the Pierres de Lecq and...

       – and the Isle of Man
      Isle of Man
      The Isle of Man , otherwise known simply as Mann , is a self-governing British Crown Dependency, located in the Irish Sea between the islands of Great Britain and Ireland, within the British Isles. The head of state is Queen Elizabeth II, who holds the title of Lord of Mann. The Lord of Mann is...

       are a special case, being neither part of the United Kingdom nor of the European Union; these islands are British Crown dependencies
      Crown dependency
      The Crown Dependencies are British possessions of the Crown, as opposed to overseas territories of the United Kingdom. They comprise the Channel Island Bailiwicks of Jersey and Guernsey in the English Channel, and the Isle of Man in the Irish Sea....

      ;
  • devolved states:
    • in Italy
      Italy
      Italy , officially the Italian Republic languages]] under the European Charter for Regional or Minority Languages. In each of these, Italy's official name is as follows:;;;;;;;;), is a unitary parliamentary republic in South-Central Europe. To the north it borders France, Switzerland, Austria and...

      , the government has devolved a number of powers to the twenty regions
      Regions of Italy
      The regions of Italy are the first-level administrative divisions of the state, constituting its first NUTS administrative level. There are twenty regions, of which five are constitutionally given a broader amount of autonomy granted by special statutes....

      , of which five have a very large degree of autonomy;
    • in Spain
      Spain
      Spain , officially the Kingdom of Spain languages]] under the European Charter for Regional or Minority Languages. In each of these, Spain's official name is as follows:;;;;;;), is a country and member state of the European Union located in southwestern Europe on the Iberian Peninsula...

      , the central government has devolved various powers to the historic nationalities among the autonomous communities
      Autonomous communities of Spain
      An autonomous community In other languages of Spain:*Catalan/Valencian .*Galician .*Basque . The second article of the constitution recognizes the rights of "nationalities and regions" to self-government and declares the "indissoluble unity of the Spanish nation".Political power in Spain is...

      , namely Andalusia
      Andalusia
      Andalusia is the most populous and the second largest in area of the autonomous communities of Spain. The Andalusian autonomous community is officially recognised as a nationality of Spain. The territory is divided into eight provinces: Huelva, Seville, Cádiz, Córdoba, Málaga, Jaén, Granada and...

      , the Basque Country
      Basque Country (autonomous community)
      The Basque Country is an autonomous community of northern Spain. It includes the Basque provinces of Álava, Biscay and Gipuzkoa, also called Historical Territories....

      , Catalonia
      Catalonia
      Catalonia is an autonomous community in northeastern Spain, with the official status of a "nationality" of Spain. Catalonia comprises four provinces: Barcelona, Girona, Lleida, and Tarragona. Its capital and largest city is Barcelona. Catalonia covers an area of 32,114 km² and has an...

       and Galicia;
    • in the United Kingdom, various competences have been devolved to the Home Nations
      Home Nations
      Home Nations is a collective term with one of two meanings depending on the context. Politically, it means the nations of the constituent countries of the United Kingdom...

       of Northern Ireland
      Northern Ireland
      Northern Ireland is one of the four countries of the United Kingdom. Situated in the north-east of the island of Ireland, it shares a border with the Republic of Ireland to the south and west...

      , Scotland
      Scotland
      Scotland is a country that is part of the United Kingdom. Occupying the northern third of the island of Great Britain, it shares a border with England to the south and is bounded by the North Sea to the east, the Atlantic Ocean to the north and west, and the North Channel and Irish Sea to the...

       and Wales
      Wales
      Wales is a country that is part of the United Kingdom and the island of Great Britain, bordered by England to its east and the Atlantic Ocean and Irish Sea to its west. It has a population of three million, and a total area of 20,779 km²...

      . The Greater London Authority
      Greater London Authority
      The Greater London Authority is the top-tier administrative body for Greater London, England. It consists of a directly elected executive Mayor of London, currently Boris Johnson, and an elected 25-member London Assembly with scrutiny powers...

       also has extensive devolved powers.

Parliamentary chambers

A further distinction is the number of chambers in the national legislature
Legislature
A legislature is a kind of deliberative assembly with the power to pass, amend, and repeal laws. The law created by a legislature is called legislation or statutory law. In addition to enacting laws, legislatures usually have exclusive authority to raise or lower taxes and adopt the budget and...

. While there had been legislatures with more than two chambers (tricameral
Tricameralism
Tricameralism is the practice of having three legislative or parliamentary chambers. It is contrasted to unicameralism and bicameralism, both of which are far more common....

 and tetracameral
Tetracameralism
Tetracameralism is the practice of having four legislative or parliamentary chambers. It is contrasted to unicameralism and bicameralism, which are far more common, and tricameralism, which is rarely used in government...

 ones), nowadays there are only unicameral
Unicameralism
In government, unicameralism is the practice of having one legislative or parliamentary chamber. Thus, a unicameral parliament or unicameral legislature is a legislature which consists of one chamber or house...

 and bicameral
Bicameralism
In the government, bicameralism is the practice of having two legislative or parliamentary chambers. Thus, a bicameral parliament or bicameral legislature is a legislature which consists of two chambers or houses....

 ones. There is no clear trend towards either model as of 2006. Federations and countries with strong regional differences or regional identities are normally bicameral to reflect the regions' interests in national bills
Bill (proposed law)
A bill is a proposed law under consideration by a legislature. A bill does not become law until it is passed by the legislature and, in most cases, approved by the executive. Once a bill has been enacted into law, it is called an act or a statute....

. The states with the larger populations, from the Netherlands upwards, all have a bicameral system. Although there is a greater mix among the smaller states (some influenced by their federalist structure), the smallest states are on the whole unicameral.

In the member states of the European Union, if the parliament has only one chamber, it is wholly directly elected
Direct election
Direct election is a term describing a system of choosing political officeholders in which the voters directly cast ballots for the person, persons or political party that they desire to see elected. The method by which the winner or winners of a direct election are chosen depends upon the...

 in all cases. If there are two chambers, the lower house
Lower house
A lower house is one of two chambers of a bicameral legislature, the other chamber being the upper house.Despite its official position "below" the upper house, in many legislatures worldwide the lower house has come to wield more power...

 is directly elected in all cases, while the upper house
Upper house
An upper house, often called a senate, is one of two chambers of a bicameral legislature, the other chamber being the lower house; a legislature composed of only one house is described as unicameral.- Possible specific characteristics :...

 can be directly elected (e.g. the Senate of Poland
Poland
Poland , officially the Republic of Poland , is a country in Central Europe bordered by Germany to the west; the Czech Republic and Slovakia to the south; Ukraine, Belarus and Lithuania to the east; and the Baltic Sea and Kaliningrad Oblast, a Russian exclave, to the north...

); or indirectly elected
Indirect election
Indirect election is a process in which voters in an election don't actually choose between candidates for an office but rather elect persons who will then make the choice. It is one of the oldest form of elections and is still used today for many upper houses and presidents...

, for example, by regional legislatures (e.g. the Federal Council
Federal Council of Austria
The Federal Council of Austria or Bundesrat is the second chamber of the Austrian parliament, representing the nine States of Austria on federal level. As part of a bicameral legislature alongside of the National Council of Austria , it can be compared with an upper house or a senate...

 of Austria
Austria
Austria , officially the Republic of Austria , is a landlocked country of roughly 8.4 million people in Central Europe. It is bordered by the Czech Republic and Germany to the north, Slovakia and Hungary to the east, Slovenia and Italy to the south, and Switzerland and Liechtenstein to the...

); or non-elected, but representing certain interest groups (e.g. the National Council
National Council (Slovenia)
The National Council is according to the Constitution of Slovenia the representative of social, economic, professional and local interest groups in Slovenia and has a legislative function working as a corrective mechanism of the National Assembly, although it does not itself pass acts. It may be...

 of Slovenia
Slovenia
Slovenia , officially the Republic of Slovenia , is a country in Central and Southeastern Europe touching the Alps and bordering the Mediterranean. Slovenia borders Italy to the west, Croatia to the south and east, Hungary to the northeast, and Austria to the north, and also has a small portion of...

); or non-elected (though by and large appointed by elected officials) as a remnant of a non-democratic political system in earlier times (as in the House of Lords
House of Lords
The House of Lords is the upper house of the Parliament of the United Kingdom. Like the House of Commons, it meets in the Palace of Westminster....

 in the United Kingdom
United Kingdom
The United Kingdom of Great Britain and Northern IrelandIn the United Kingdom and Dependencies, other languages have been officially recognised as legitimate autochthonous languages under the European Charter for Regional or Minority Languages...

).

Listed by form of government

State Government
Form of government
A form of government, or form of state governance, refers to the set of political institutions by which a government of a state is organized. Synonyms include "regime type" and "system of government".-Empirical and conceptual problems:...

Self-governance
Self-governance
Self-governance is an abstract concept that refers to several scales of organization.It may refer to personal conduct or family units but more commonly refers to larger scale activities, i.e., professions, industry bodies, religions and political units , up to and including autonomous regions and...

Monarchy
Monarchy
A monarchy is a form of government in which the office of head of state is usually held until death or abdication and is often hereditary and includes a royal house. In some cases, the monarch is elected...

/Republic
Republic
A republic is a form of government in which the people, or some significant portion of them, have supreme control over the government and where offices of state are elected or chosen by elected people. In modern times, a common simplified definition of a republic is a government where the head of...

Head of state
Head of State
A head of state is the individual that serves as the chief public representative of a monarchy, republic, federation, commonwealth or other kind of state. His or her role generally includes legitimizing the state and exercising the political powers, functions, and duties granted to the head of...

Head of government
Head of government
Head of government is the chief officer of the executive branch of a government, often presiding over a cabinet. In a parliamentary system, the head of government is often styled prime minister, chief minister, premier, etc...

parliamentary
Parliamentary system
A parliamentary system is a system of government in which the ministers of the executive branch get their democratic legitimacy from the legislature and are accountable to that body, such that the executive and legislative branches are intertwined....

federal
Federation
A federation , also known as a federal state, is a type of sovereign state characterized by a union of partially self-governing states or regions united by a central government...

republic
Republic
A republic is a form of government in which the people, or some significant portion of them, have supreme control over the government and where offices of state are elected or chosen by elected people. In modern times, a common simplified definition of a republic is a government where the head of...

Federal President (Bundespräsident)
President of Austria
The President of Austria is the federal head of state of Austria. Though theoretically entrusted with great power by the constitution, in practice the President acts, for the most part, merely as a ceremonial figurehead...

Federal Chancellor (Bundeskanzler)
Chancellor of Austria
The Federal Chancellor is the head of government in Austria. Its deputy is the Vice-Chancellor. Before 1918, the equivalent office was the Minister-President of Austria. The Federal Chancellor is considered to be the most powerful political position in Austrian politics.-Appointment:The...

parliamentary federal constitutional
Constitutional monarchy
Constitutional monarchy is a form of government in which a monarch acts as head of state within the parameters of a constitution, whether it be a written, uncodified or blended constitution...

 popular monarchy
Popular monarchy
Popular monarchy is a system of monarchical governance in which the monarch's title is linked with a popular mandate rather than a constitutional state. It was the norm in some places from the Middle Ages, and was occasionally used in 19th- and 20th-century Europe, often reflecting the results of...

 
King (Koning / Roi / König)
Monarchy of Belgium
Monarchy in Belgium is constitutional and popular in nature. The hereditary monarch, at present Albert II, is the head of state and is officially called King of the Belgians .-Origins:...

Prime Minister (Eerste Minister / Premier Ministre / Premierminister)
parliamentary unitary
Unitary state
A unitary state is a state governed as one single unit in which the central government is supreme and any administrative divisions exercise only powers that their central government chooses to delegate...

republic President (Президент) Prime Minister (Министър-председател)
presidential
Presidential system
A presidential system is a system of government where an executive branch exists and presides separately from the legislature, to which it is not responsible and which cannot, in normal circumstances, dismiss it....

unitary republic President (Πρόεδρος / Cumhurbaşkanı)
Presidents of Cyprus
The President of Cyprus is the head of state and the head of government of the Republic of Cyprus. The office was created in 1960, after Cyprus gained its independence from the United Kingdom. Currently, the President of Cyprus is Dimitris Christofias....

parliamentary unitary republic President (Prezident) Prime Minister (Předseda vlády)
parliamentary federate
Federacy
A federacy is a form of government where one or several substate units enjoy considerably more independence than the majority of the substate units. To some extent, such an arrangement can be considered as similar to asymmetric federalism.-Description:...

constitutional monarchy Queen (Dronning) Prime Minister (Statsminister)
Prime Minister of Denmark
The Prime Minister of Denmark is the head of government in Danish politics. The Prime Minister is traditionally the leader of a political coalition in the Folketing and presides over the cabinet....

parliamentary unitary republic President (President)
President of Estonia
The President of the Republic is the head of state of the Republic of Estonia.Estonia is a parliamentary republic, therefore President is mainly a symbolic figure and holds no executive power. The President has to suspend his membership in any political party for his term in office...

Prime Minister (Peaminister)
Prime Minister of Estonia
The Prime Minister of Estonia is the head of government of the Republic of Estonia. The prime minister is nominated by the President after appropriate consultations with the parliamentary factions and confirmed by the Parliament. In case of disagreement, the Parliament can reject the President's...

semi-presidential
Semi-presidential system
The semi-presidential system is a system of government in which a president and a prime minister are both active participants in the day-to-day administration of the state...

federate republic President (Presidentti / President)
President of Finland
The President of the Republic of Finland is the nation's head of state. Under the Finnish constitution, executive power is vested in the President and the government, with the President possessing extensive powers. The President is elected directly by the people of Finland for a term of six years....

Prime Minister (Pääministeri / Statsminister)
Prime Minister of Finland
The Prime Minister is the Head of Government of Finland. The Prime Minister is appointed by the President, who is the Head of State. The current Prime Minister is Jyrki Katainen of the National Coalition Party.-Overview:...

semi-presidential federate republic President (Président)
President of the French Republic
The President of the French Republic colloquially referred to in English as the President of France, is France's elected Head of State....

Prime Minister (Premier ministre)
Prime Minister of France
The Prime Minister of France in the Fifth Republic is the head of government and of the Council of Ministers of France. The head of state is the President of the French Republic...

parliamentary federal republic Federal President (Bundespräsident)
President of Germany
The President of the Federal Republic of Germany is the country's head of state. His official title in German is Bundespräsident . Germany has a parliamentary system of government and so the position of President is largely ceremonial...

Federal Chancellor (Bundeskanzler)
parliamentary unitary republic President (Πρόεδρος)
President of Greece
The President of the Hellenic Republic , colloquially referred to in English as the President of Greece, is the head of state of Greece. The office of the President of the Republic was established after the Greek republic referendum, 1974 and formally by the Constitution of Greece in 1975. The...

Prime Minister (Πρωθυπουργός)
Prime Minister of Greece
The Prime Minister of Greece , officially the Prime Minister of the Hellenic Republic , is the head of government of the Hellenic Republic and the leader of the Greek cabinet. The current interim Prime Minister is Lucas Papademos, a former Vice President of the European Central Bank, following...

parliamentary unitary republic President (Köztársasági Elnök)
Heads of state of Hungary
-Hungarian Revolution of 1848:Parties-Hungarian Democratic Republic :Parties-Hungarian Soviet Republic :Parties-Romanian Occupation :Parties-Kingdom of Hungary :...

Prime Minister (Miniszterelnök)
parliamentary unitary republic President (Uachtarán)
President of Ireland
The President of Ireland is the head of state of Ireland. The President is usually directly elected by the people for seven years, and can be elected for a maximum of two terms. The presidency is largely a ceremonial office, but the President does exercise certain limited powers with absolute...

Taoiseach
Taoiseach
The Taoiseach is the head of government or prime minister of Ireland. The Taoiseach is appointed by the President upon the nomination of Dáil Éireann, the lower house of the Oireachtas , and must, in order to remain in office, retain the support of a majority in the Dáil.The current Taoiseach is...

parliamentary devolved
Devolution
Devolution is the statutory granting of powers from the central government of a sovereign state to government at a subnational level, such as a regional, local, or state level. Devolution can be mainly financial, e.g. giving areas a budget which was formerly administered by central government...

republic President (Presidente) Prime Minister (Presidente del Consiglio dei Ministri)
parliamentary unitary republic President (Prezidents) Prime Minister (Ministru prezidents)
Prime Minister of Latvia
The Prime Minister of Latvia is the most powerful member of the Government of the Republic of Latvia, and presides over the Latvian Cabinet of Ministers...

parliamentary unitary republic President (Prezidentas) Prime Minister (Ministras Pirmininkas)
Prime Minister of Lithuania
The Prime Minister of Lithuania is the head of the executive arm of Lithuania's government, and is chosen by the Lithuanian parliament, the Seimas. The modern office of Prime Minister was established in 1990, although the official title was "Chairperson of the Council of Ministers" until 25...

parliamentary unitary constitutional monarchy Grand Duke (Grand-duc / Großherzog / Groussherzog)
Grand Ducal Family of Luxembourg
The Grand Ducal Family of Luxembourg consists of the extended family of the sovereign Grand Duke....

Prime Minister (Premier ministre / Premierminister / Premierminister)
parliamentary unitary republic President (President)
President of Malta
The President of Malta is the constitutional head of state of Malta.The President is appointed by a resolution of the House of Representatives of Malta for a five year term, taking an oath to "preserve, protect and defend" the Constitution....

Prime Minister (Prim Ministru)
Prime Minister of Malta
The Prime Minister of Malta is the Head of Government of Malta.-Establishment of the office and developments:The office of "Head of Ministry" was created as soon as Malta was granted autonomous government in 1921. The 1921 constitution was suspended twice before being revoked...

parliamentary federate constitutional monarchy Queen (Koningin)
Monarchy of the Netherlands
The Netherlands has been an independent monarchy since 16 March 1815, and has been governed by members of the House of Orange-Nassau since.-Constitutional role and position of the monarch:...

Prime Minister (Minister-president)
Prime Minister of the Netherlands
The Prime Minister of the Netherlands is the chairman of the Council of Ministers of the Netherlands. He is the de facto head of government of the Netherlands and coordinates the policy of the government...

parliamentary unitary republic President (Prezydent)
President of the Republic of Poland
The President of the Republic of Poland is the Polish head of state. His or her rights and obligations are determined in the Constitution of Poland....

Prime Minister (Prezes Rady Ministrów)
Prime Minister of the Republic of Poland
The Prime Minister of Poland heads the Polish Council of Ministers and directs their work, supervises territorial self-government within the guidelines and in ways described in the Constitution and other legislation, and acts as the superior for all government administration workers...

parliamentary unitary republic President (Presidente)
President of Portugal
Portugal has been a republic since 1910, and since that time the head of state has been the president, whose official title is President of the Portuguese Republic ....

Prime Minister (Primeiro-Ministro)
semi-presidential unitary republic President (Preşedinte)
President of Romania
The President of Romania is the head of state of Romania. The President is directly elected by a two-round system for a five-year term . An individual may serve two terms...

Prime Minister (Prim-ministru)
Prime Minister of Romania
The Prime Minister of Romania is the head of the Government of Romania. Initially, the office was styled President of the Council of Ministers , when the term "Government" included more than the Cabinet, and the Cabinet was called The Council of Ministers...

parliamentary unitary republic President (Prezident) Prime Minister (Predseda vlády)
parliamentary unitary republic President (Predsednik)
President of Slovenia
The function of President of the Republic of Slovenia was established on 23 December 1991, when the National Assembly of Slovenia passed a new constitution as a result of independence from Socialist Federal Republic of Yugoslavia....

Prime Minister (Predsednik vlade)
Prime Minister of Slovenia
There have been six Prime Ministers of Slovenia since that country gained its independence in the breakup of Yugoslavia. Unlike the President of Slovenia, who is directly elected, the Prime Minister is appointed by the National Assembly, and must control a majority there in order to...

parliamentary devolved constitutional monarchy King (Rey) President of the Government (Presidente del Gobierno)
Prime Minister of Spain
The President of the Government of Spain , sometimes known in English as the Prime Minister of Spain, is the head of Government of Spain. The current office is established under the Constitution of 1978...

parliamentary unitary constitutional monarchy King (Kung)
Monarch of Sweden
The monarchy of Sweden is the constitutional monarchy of the Kingdom of Sweden. The present monarch, Carl XVI Gustaf, has reigned since 15 September 1973. He and his immediate family undertake various official, ceremonial and representational duties...

Prime Minister (Statsminister)
Prime Minister of Sweden
The Prime Minister is the head of government in the Kingdom of Sweden. Before the creation of the office of a Prime Minister in 1876, Sweden did not have a head of government separate from its head of state, namely the King, in whom the executive authority was vested...

parliamentary federate and devolved constitutional monarchy Queen
British monarchy
The monarchy of the United Kingdom is the constitutional monarchy of the United Kingdom and its overseas territories. The present monarch, Queen Elizabeth II, has reigned since 6 February 1952. She and her immediate family undertake various official, ceremonial and representational duties...

Prime Minister
Prime Minister of the United Kingdom
The Prime Minister of the United Kingdom of Great Britain and Northern Ireland is the Head of Her Majesty's Government in the United Kingdom. The Prime Minister and Cabinet are collectively accountable for their policies and actions to the Sovereign, to Parliament, to their political party and...


Listed by type of parliament

Member state Parliamentary
system
Overall name of legislature
Legislature
A legislature is a kind of deliberative assembly with the power to pass, amend, and repeal laws. The law created by a legislature is called legislation or statutory law. In addition to enacting laws, legislatures usually have exclusive authority to raise or lower taxes and adopt the budget and...

Lower house
Lower house
A lower house is one of two chambers of a bicameral legislature, the other chamber being the upper house.Despite its official position "below" the upper house, in many legislatures worldwide the lower house has come to wield more power...

 (members)
Upper house
Upper house
An upper house, often called a senate, is one of two chambers of a bicameral legislature, the other chamber being the lower house; a legislature composed of only one house is described as unicameral.- Possible specific characteristics :...

 (members)
bicameral
Bicameralism
In the government, bicameralism is the practice of having two legislative or parliamentary chambers. Thus, a bicameral parliament or bicameral legislature is a legislature which consists of two chambers or houses....

Federal Assembly (Bundesversammlung)
Federal Assembly of Austria
The Federal Assembly is the name given to a formal joint session of the two houses of the Austrian federal parliament, the National Council and the Federal Council....

National Council (Nationalrat)
National Council of Austria
The National Council is one of the two houses of the Austrian parliament. According to the constitution, the National Council and the complementary Federal Council are peers...

 (183)
Federal Council (Bundesrat)
Federal Council of Austria
The Federal Council of Austria or Bundesrat is the second chamber of the Austrian parliament, representing the nine States of Austria on federal level. As part of a bicameral legislature alongside of the National Council of Austria , it can be compared with an upper house or a senate...

 (62)
}
| colspan="2" | Federal Parliament (Federaal Parlement / Parlement Fédérale / Föderales Parlament)
Belgian Federal Parliament
The Belgian Federal Parliament is a bicameral parliament. It consists of the Chamber of Representatives and the Senate . It sits in the Palace of the Nation .- Chamber of Representatives :...


|-
| Chamber of Representatives
(Kamer van Volksvertegenwoordigers /
Chambre des Représentants /
Abgeordnetenkammer) (150)
| Senate (Senaat / Sénat / Senat)
Belgian Senate
The Belgian Senate is one of the two chambers of the bicameral Federal Parliament of Belgium, the other being the Chamber of Representatives. It is considered to be the "upper house" of the Federal Parliament.-History and future:...

 (71)
|-
! style="text-align:left" |
| unicameral
Unicameralism
In government, unicameralism is the practice of having one legislative or parliamentary chamber. Thus, a unicameral parliament or unicameral legislature is a legislature which consists of one chamber or house...


| colspan="2" | National Assembly (Народно събрание)
National Assembly of Bulgaria
The National Assembly of Bulgaria is the unicameral parliament and body of the legislative of the Republic of Bulgaria.The National Assembly of Bulgaria was established in 1879 with the Constitution of Bulgaria.-Ordinary National Assembly:...

 (240)
|-
! style="text-align:left" |
| unicameral
| colspan="2" | House of Representatives (Βουλή των Αντιπροσώπων / Temsilciler Meclisi)
House of Representatives of Cyprus
The House of Representatives is the parliament of Cyprus. It has 59 members elected for a five year term, 56 members by proportional representation and 3 observer members representing the Maronite, Latin and Armenian minorities...

 (59)
|-
! rowspan="2" style="text-align:left" |
| rowspan="2" | bicameral
| colspan="2" | Parliament (Parlament)
Parliament of the Czech Republic
The Parliament of the Czech Republic is the legislative body of the Czech Republic, based in Prague. It consists of two chambers, both elected in direct elections:* the Lower House: Chamber of Deputies of the Parliament of the Czech Republic...


|-
| Chamber of Deputies (Poslanecká sněmovna)
Chamber of Deputies of the Czech Republic
The Chamber of Deputies of the Parliament of the Czech Republic is the lower house of the bicameral Parliament of the Czech Republic. The seat of the Chamber of Deputies is situated in palaces in Malá Strana, Prague....

 (200)
| Senate (Senát)
Senate of the Czech Republic
The Senate of the Parliament of the Czech Republic , usually referred to as Senát, is the upper chamber of the Parliament of the Czech Republic...

 (81)
|-
! style="text-align:left" |
| unicameral
| colspan="2" | Parliament (Folketinget)
Folketing
The Folketing , is the national parliament of Denmark. The name literally means "People's thing"—that is, the people's governing assembly. It is located in Christiansborg Palace, on the islet of Slotsholmen in central Copenhagen....

 (179)
|-
! style="text-align:left" |
| unicameral
| colspan="2" | State Assembly (Riigikogu) (101)
|-
! style="text-align:left" |
| unicameral
| colspan="2" | Parliament (Eduskunta / Riksdag)
Parliament of Finland
The Eduskunta , is the parliament of Finland. The unicameral parliament has 200 members and meets in the Parliament House in Helsinki. The latest election to the parliament took place on April 17, 2011.- Constitution :...

 (200)
|-
! rowspan="2" style="text-align:left" |
| rowspan="2" | bicameral
| colspan="2" | Parliament (Parlement) / Congress (Congrès)
|-
| National Assembly (Assemblée nationale) (577)
| Senate (Sénat) (343)
|-
! rowspan="2" style="text-align:left" |
| rowspan="2" | bicameral
| colspan="2" | —
|-
| Federal Diet (Bundestag)
Bundestag
The Bundestag is a federal legislative body in Germany. In practice Germany is governed by a bicameral legislature, of which the Bundestag serves as the lower house and the Bundesrat the upper house. The Bundestag is established by the German Basic Law of 1949, as the successor to the earlier...

 (622)
| Federal Council (Bundesrat)
Bundesrat of Germany
The German Bundesrat is a legislative body that represents the sixteen Länder of Germany at the federal level...

 (69)
|-
! style="text-align:left" |
| unicameral
| colspan="2" | Parliament of the Greeks (Βουλή των Ελλήνων)
Hellenic Parliament
The Hellenic Parliament , also the Parliament of the Hellenes, is the Parliament of Greece, located in the Parliament House , overlooking Syntagma Square in Athens, Greece....

 (300)
|-
! style="text-align:left" |
| unicameral
| colspan="2" | National Assembly (Országgyűlés)
National Assembly of Hungary
The National Assembly or Diet is the parliament of Hungary. The unicameral body consists of 386 members elected to 4-year terms. Election of members is based on a complex system involving both area and list election; parties must win at least 5% of the popular vote in order to enter list members...

 (386)
|-
! rowspan="2" style="text-align:left" |
| rowspan="2" | bicameral
| colspan="2" | ("National Parliament")
|-
| ("House of Representatives") (166)
| ("Senate") (60)
|-
! rowspan="2" style="text-align:left" |
| rowspan="2" | bicameral
| colspan="2" | Parliament (Parlamento)
Parliament of Italy
The Parliament of Italy is the national parliament of Italy. It is a bicameral legislature with 945 elected members . The Chamber of Deputies, with 630 members is the lower house. The Senate of the Republic is the upper house and has 315 members .Since 2005, a party list electoral law is being...


|-
| Chamber of Deputies (Camera dei Deputati)
Italian Chamber of Deputies
The Italian Chamber of Deputies is the lower house of the Parliament of Italy. It has 630 seats, a plurality of which is controlled presently by liberal-conservative party People of Freedom. Twelve deputies represent Italian citizens outside of Italy. Deputies meet in the Palazzo Montecitorio. A...

 (630)
| Senate of the Republic (Senato della Repubblica)
Italian Senate
The Senate of the Republic is the upper house of the Italian Parliament. It was established in its current form on 8 May 1948, but previously existed during the Kingdom of Italy as Senato del Regno , itself a continuation of the Senato Subalpino of Sardinia-Piedmont established on 8 May 1848...

 (315)
|-
! style="text-align:left" |
| unicameral
| colspan="2" | Diet (Saeima)
Saeima
Saeima is the parliament of the Republic of Latvia. It is a unicameral parliament consisting of 100 members who are elected by proportional representation, with seats allocated to political parties which gain at least 5% of the popular vote. Elections are scheduled to be held once every four years,...

 (100)
|-
! style="text-align:left" |
| unicameral
| colspan="2" | Diet (Seimas)
Seimas
The Seimas is the unicameral Lithuanian parliament. It has 141 members that are elected for a four-year term. About half of the members of this legislative body are elected in individual constituencies , and the other half are elected by nationwide vote according to proportional representation...

 (141)
|-
! style="text-align:left" |
| unicameral
| colspan="2" | Chamber of Deputies (Chambre des Députés / Abgeordnetenkammer / Châmber vun Députéirten)
Chamber of Deputies of Luxembourg
The Chamber of Deputies , abbreviated to the Chamber, is the unicameral national legislature of Luxembourg. 'Krautmaart' is sometimes used as a metonym for the Chamber, after the square on which the Hôtel de la Chambre is located....

 (60)
|-
! style="text-align:left" |
| unicameral
| colspan="2" | House of Representatives (il-Kamra tar-Rappreżentanti)
House of Representatives of Malta
The House of Representatives is the unicameral legislature of Malta and a component of the Parliament of Malta.The House is composed of an odd number of members elected for a five year term...

 (69)
|-
! rowspan="2" style="text-align:left" |
| rowspan="2" | bicameral
| colspan="2" | States–General (Staten–Generaal)
States-General of the Netherlands
The States-General of the Netherlands is the bicameral legislature of the Netherlands, consisting of the Senate and the House of Representatives. The parliament meets in at the Binnenhof in The Hague. The archaic Dutch word "staten" originally related to the feudal classes in which medieval...


|-
| Second Chamber (or House of Representatives; Tweede Kamer) (150)
| First Chamber (or Senate; Eerste Kamer) (75)
|-
! rowspan="2" style="text-align:left" |
| rowspan="2" | bicameral
| colspan="2" | National Assembly (Zgromadzenie Narodowe)
National Assembly of Poland
The National Assembly is the name of both chambers of the Polish parliament, the Sejm and the Senate, when sitting in joint session...


|-
| Diet (Sejm) (460)
| Senate (Senat) (100)
|-
! style="text-align:left" |
| unicameral
| colspan="2" | Assembly of the Republic (Assembleia da República)
Assembly of the Republic
The Assembly of the Republic is the Portuguese parliament. It is located in a historical building in Lisbon, referred to as Palácio de São Bento, the site of an old Benedictine monastery...

 (230)
|-
! rowspan="2" style="text-align:left" |
| rowspan="2" | bicameral
| colspan="2" | Parliament (Parlamentul)
Parliament of Romania
The Parliament of Romania is made up of two chambers:*The Chamber of Deputies*The SenatePrior to the modifications of the Constitution in 2003, the two houses had identical attributes. A text of a law had to be approved by both houses...


|-
| Chamber of Deputies (Camera Deputaţilor)
Chamber of Deputies of Romania
The Chamber of Deputies is the lower house in Romania's bicameral parliament. It has 315 seats, to which deputies are elected by direct popular vote on a proportional representation basis to serve four-year terms...

 (332)
| Senate (Senat)
Senate of Romania
The Senate of Romania is the upper house in the bicameral Parliament of Romania. It has 137 seats , to which members are elected by direct popular vote, using Mixed member proportional representation in 42 electoral districts , to serve four-year terms.-Former location:After the Romanian...

 (137)
|-
! style="text-align:left" |
| unicameral
| colspan="2" | National Council (Národná rada)
National Council of the Slovak Republic
The National Council of the Slovak Republic , abbreviated to NR SR, is the national parliament of Slovakia. It is unicameral, and consists of 150 MPs, who are elected by universal suffrage under proportional representation every four years....

 (150)
|-
! rowspan="2" style="text-align:left" |
| rowspan="2" | bicameral
| colspan="2" | Parliament (Parlament)
Slovenian Parliament
The Slovenian Parliament is the informal designation of the general representative body of the Slovenian nation and the legislative body of the Republic of Slovenia....


|-
| National Assembly (Državni zbor)
National Assembly (Slovenia)
The National Assembly is the general representative body of the Slovenian nation. According to the Constitution of Slovenia and the Constitutional Court of Slovenia, it is the major part of the distinctively incompletely bicameral legislative branch of the Republic of Slovenia. It is unicameral...

 (90)
| National Council (Državni svet)
National Council (Slovenia)
The National Council is according to the Constitution of Slovenia the representative of social, economic, professional and local interest groups in Slovenia and has a legislative function working as a corrective mechanism of the National Assembly, although it does not itself pass acts. It may be...

 (40)
|-
! rowspan="2" style="text-align:left" |
| rowspan="2" | bicameral
| colspan="2" | General Courts (Cortes Generales)
Cortes Generales
The Cortes Generales is the legislature of Spain. It is a bicameral parliament, composed of the Congress of Deputies and the Senate . The Cortes has power to enact any law and to amend the constitution...


|-
| Congress of Deputies (Congreso de los Diputados) (350)
| Senate (Senado)
Spanish Senate
The Senate of Spain is the upper house of Spain's parliament, the . It is made up of 264 members: 208 elected by popular vote, and 56 appointed by the regional legislatures. All senators serve four-year terms, though regional legislatures may recall their appointees at any time.The last election...

 (259)
|-
! style="text-align:left" |
| unicameral
| colspan="2" | Diet (Riksdagen)
Parliament of Sweden
The Riksdag is the national legislative assembly of Sweden. The riksdag is a unicameral assembly with 349 members , who are elected on a proportional basis to serve fixed terms of four years...

 (349)
|-
! rowspan="2" style="text-align:left" |
| rowspan="2" | bicameral
| colspan="2" | Parliament
Parliament of the United Kingdom
The Parliament of the United Kingdom of Great Britain and Northern Ireland is the supreme legislative body in the United Kingdom, British Crown dependencies and British overseas territories, located in London...


|-
| House of Commons
British House of Commons
The House of Commons is the lower house of the Parliament of the United Kingdom, which also comprises the Sovereign and the House of Lords . Both Commons and Lords meet in the Palace of Westminster. The Commons is a democratically elected body, consisting of 650 members , who are known as Members...

 (650)
| House of Lords
House of Lords
The House of Lords is the upper house of the Parliament of the United Kingdom. Like the House of Commons, it meets in the Palace of Westminster....

(741)
|}
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