This is a list of legislatures by country. A "legislature" is the generic name for the national parliaments and congresses that act as a plenary general assembly of representatives and that have the power to legislate. All entities included in the list of sovereign states are included in this list.
The legislatures are listed with their names in English and the name in the (most-used) native language of the country (or the official name in the second-most used native language in cases where English is the majority "native" language).
| Organisation | Name of house(s) | House level | Term (years) | Voting system | Seats | Population per seat | GDP per seat (USD millions) | |
|---|---|---|---|---|---|---|---|---|
| Andean Parliament | Unicameral | Direct, indirect (varies by country) proportional | 25 | ~ | ~ | |||
| Pan-African Parliament | Unicameral | 5 | Indirect (appointed by 47 of 53 national legislatures) | 265 | 3,974,098 | 14,180 | ||
| Arab Parliament | Unicameral | 80 | ~ | ~ | ||||
| Benelux Parliament | Unicameral | Indirect | 49 | ~ | ~ | |||
| Central American Integration System | Central American Parliament | Unicameral | Varies by country | Direct, proportional | 126 | 426,274 | 2,651 | |
| Community of Latin American and Caribbean States | Latin American Parliament | Unicameral | 5 | Direct | 276 | ~ | ~ | |
| European Parliament[1] | Lower | 5 | Open and closed list proportional representation Single transferable vote (in the Republic of Ireland and Malta) | 705 | 667,761 | 20,983 | ||
| Council of the European Union[2] (informally known as the Council of Ministers) | Upper | N/A | Indirect (members of national governments) | 27 | ~ | ~ | ||
| Mercosur Parliament | Unicameral | 5 | Direct, indirect (varies by country) proportional | 108 | 1,588,889 | 16,228 |
See also: List of sovereign states, Member states of the United Nations and United Nations General Assembly observers.
| UN member or observer state | Overall name of legislature | Name of house(s) | House level | Term (years) | Electoral system | data-sort-type="number" | Seats | Population per seat |
|---|---|---|---|---|---|---|---|---|
| Leadership Council of Afghanistan (Pushto; Pashto: رهبری شُورَىٰ,)[3] | Unicameral | No fixed term | Appointment by the supreme leader | data-sort-value="30" | 30[4] | |||
 | Parliament of Albania (Albanian: Kuvendi i Shqipërisë) | Unicameral | 4 | Closed list proportional representation with the D'Hondt method by county with a 3% threshold | 140 | 20,226 | ||
 | Parliament of Algeria (Arabic: البرلمان الجزائري, / Berber languages: Agraw Azzayri / French: Parlement algérien< | --While French isn't official in Algeria, it is de facto a significant language as per French Language in Algeria-->) | People's National Assembly (Arabic: المجلس الشعبي الوطني, / Berber languages: Asqamu Aɣerfan Aɣelnaw / French: Assemblée populaire nationale, APN) | Lower | 5 | Open list proportional representation with the largest remainder method by province | 407 | 80,303 |
| Council of the Nation (Arabic: مجلس الأمة, / French: Conseil de la nation) | Upper | 6 | Elected by popular wilaya assemblies and communal people's assemblies, and appointed by the President | 174 | 257,638 | |||
 | General Council of Andorra (Catalan; Valencian: Consell General d'Andorra) | Unicameral | 4 | Parallel voting Closed list proportional representation with the largest remainder method nationwide and block vote by parish | 28 | 2,789 | ||
 | National Assembly (Portuguese: Assembleia Nacional) | Unicameral | 4 | Closed list proportional representation with the D'Hondt method nationwide and by province | 220 | 84,081 | ||
 | Parliament of Antigua and Barbuda | House of Representatives | Lower | 5 | First-past-the-post | 17 | 4,305 | |
| Senate | Upper | 5 | Appointed by the governor-general, representing the monarch, on the advice of the prime minister and leader of the Opposition | 17 | 4,811 | |||
 | National Congress of Argentina (Spanish; Castilian: Congreso de la Nación Argentina) | Chamber of Deputies of the Nation (Spanish; Castilian: Cámara de Diputados de la Nación) | Lower | 4 | Closed list proportional representation with the D'Hondt method by province with a 3% threshold | 257 | 156,097 | |
| Honorable Senate of the Nation (Spanish; Castilian: Honorable Senado de la Nación Argentina) | Upper | 6 | Partial block voting by province | 72 | 557,181 | |||
 | National Assembly of Armenia (Armenian: Հայաստանի Հանրապետության Ազգային ժողով, / Abbreviated: Armenian: Ազգային ժողով, ԱԺ,) Informal: Parliament of Armenia (Armenian: խորհրդարան,) | Unicameral | 5 | Closed-list proportional representation in a nationwide constituency and open-list proportional in district constituencies, with a 5% or top-3 national threshold (or 7% for alliances)[5] | 105 | 24,902 | ||
 | Parliament of Australia | House of Representatives | Lower | 3 | Instant-runoff voting | 151 | 162,914 | |
| Senate | Upper | 6 | Single transferable vote by state/territory | 76 | 323,684 | |||
 | Austrian Parliament (German: Österreichisches Parlament) | National Council (German: Nationalrat) | Lower | 5 | Open list proportional representation with the D'Hondt method in constituencies with a 4% threshold | 183 | 43,895 | |
| Federal Council (German: Bundesrat) | Upper | 5 and 6 | Elected by state legislatures | 61 | 129,563 | |||
 | National Assembly (Azerbaijani: Milli Məclis) | Unicameral | 5 | First-past-the-post | 125 | 73,320 | ||
 Bahamas, The | Parliament of the Bahamas | House of Assembly | Lower | 5 | First-past-the-post | 39 | 9,326 | |
| Senate | Upper | 5 | Appointed by the governor-general, representing the monarch, on the advice of the prime minister and leader of the Opposition | 16 | 22,103 | |||
 | National Assembly (Arabic: المجلس الوطني البحريني,) | Council of Representatives (Arabic: مجلس النواب,) | Lower | 4 | Two-round system | 40 | 30,864 | |
| Consultative Council (Arabic: مجلس الشورى,) | Upper | 4 | Appointed by the king | 40 | 30,864 | |||
| National Parliament (Bengali: জাতীয় সংসদ,) | Unicameral | 5 | First-past-the-post | 350 | 466,909 | |||
 | Parliament of Barbados | House of Assembly | Lower | 5 | First-past-the-post | 30 | 9,486 | |
| Senate | Upper | 5 | Appointed by the President on the advice of the prime minister and leader of the Opposition | 21 | 13,551 | |||
 | National Assembly of the Republic of Belarus (Belarusian: Нацыянальны сход Рэспублікі Беларусь, / Russian: Национальное собрание Республики Беларусь,) | House of Representatives (Belarusian: Палата прадстаўнікоў, / Russian: Палата представителей,) | Lower | 4 | Two-round system | 110 | 85,997 | |
| Council of the Republic (Belarusian: Савет Рэспублікі, / Russian: Совет Республики) | Upper | 4 | Elected by regional councils, and appointed by the President | 64 | 147,773 | |||
 | Federal Parliament (Dutch; Flemish: Federaal Parlement / French: Parlement fédéral / German: Föderales Parlament) | Chamber of Representatives (Dutch; Flemish: Kamer van Volksvertegenwoordigers / French: Chambre des Représentants / German: Abgeordnetenkammer) | Lower | 5 | Open list proportional representation with the D'Hondt method by province with a 5% threshold | 150 | 74,000 | |
| Senate (Dutch; Flemish: Senaat / French: Sénat / German: Senat) | Upper | 5 | Elected by community and regional parliaments | 60 | 185,000 | |||
 | National Assembly | House of Representatives | Lower | 5 | First-past-the-post | 31 | 10,748 | |
| Senate | Upper | 5 | Appointed by the governor-general representing the monarch, on the advice of the prime minister and leader of the Opposition | 12 | 27,766 | |||
 | National Assembly (French: Assemblée nationale) | Unicameral | 4 | Proportional representation with the largest remainder method in constituencies | 83 | 115,648 | ||
 | Parliament of Bhutan (Tibetan: རྒྱལ་ཡོངས་ཚོགས་ཁང་, | National Assembly (Tibetan: རྒྱལ་ཡོངས་ཚོགས་འདུ།,) | Lower | 5 | First-past-the-post | 47 | 15,072 | |
| National Council (Tibetan: རྒྱལ་ཡོངས་ཚོགས་སྡེ།,) | Upper | 4 | First-past-the-post, and appointed by the king | 25 | 28,337 | |||
| Plurinational Legislative Assembly (Spanish; Castilian: Asamblea Legislativa Plurinacional) | Chamber of Deputies (Spanish; Castilian: Cámara de Diputados) | Lower | 5 | Closed list mixed-member proportional representation: Proportional representation with the D'Hondt method by department and first-past-the-post | 130 | 83,905 | ||
| Chamber of Senators (Spanish; Castilian: Cámara de Senadores) | Upper | 5 | Closed list proportional representation with the D'Hondt method by department | 36 | 302,993 | |||
 | Parliamentary Assembly ({{Not a typo|Parlamentarna / Парламентарна скупштина) | House of Representatives (Bosnian: Predstavnički dom/ Croatian: Zastupnički dom / Serbian: Представнички дом) | Lower | 4 | Open list proportional representation with the largest remainder method in constituencies | 42 | 91,422 | |
| House of Peoples (Dom naroda / Дом народa) | Upper | 4 | Serbs elected by the National Assembly of Republika Srpska, and Bosniaks and Croats elected by the House of Peoples of the Federation of Bosnia and Herzegovina | 15 | 255,982 | |||
 | National Assembly (Tswana: Palamente ya Botswana) | Unicameral | 5 | First-past-the-post, and appointed by the President | 65 | 32,211 | ||
 | National Congress (Portuguese: Congresso Nacional) | Chamber of Deputies (Portuguese: Câmara dos Deputados) | Lower | 4 | Open list proportional representation with the D'Hondt method by state | 513 | 371,798 | |
| Federal Senate (Portuguese: Senado Federal) | Upper | 8 | Partial block voting by state | 81 | 2,354,724 | |||
| Legislative Council (Malay: Majlis Mesyuarat Negara) | Unicameral | no timeframe | Appointed by the Sultan | 36 | 11,355 | |||
 | National Assembly (Bulgarian: Народно събрание,) | Unicameral | 4 | Closed list proportional representation with the largest remainder method by constituency with a 4% threshold | 240 | 30,685 | ||
 | National Assembly (French: Assemblée nationale) | Unicameral | 5 | Proportional representation with the D'Hondt method nationwide and in constituencies | 127 | 126,281 | ||
 | Parliament (French: Parlement) | National Assembly (French: Assemblée nationale) | Lower | 5 | Closed list proportional representation with the D'Hondt method in constituencies with a 2% threshold | 121 | 74,570 | |
| Senate (French: Sénat) | Upper | 5 | Elected by the communal councils | 43 | 179,577 | |||
 | Parliament (Central Khmer: សភាតំណាងរាស្ត្រ,) | National Assembly (Central Khmer: រដ្ឋសភា,) | Lower | 5 | Closed list proportional representation with the D'Hondt method by province | 123 | 108,852 | |
| Senate (Central Khmer: ព្រឹទ្ធសភា,) | Upper | 6[6] | Appointed by the monarch, elected by the National Assembly and commune councils | 61 | 219,490 | |||
 | Parliament (French: Parlement) | National Assembly (French: Assemblée nationale) | Lower | 5 | First-past-the-post and Block vote: If no list obtains an absolute majority, the one with the highest number of votes is allocated half of the seats; the remainder is allocated to the other best-placed lists through proportional representation | 180 | 97,021 | |
| Senate (French: Sénat) | Upper | 5 | Elected by municipal councils, and appointed by the president | 100 | 174,638 | |||
 | Parliament (French: Parlement) | House of Commons (French: Chambre des communes) | Lower | 4 years, unless elections are called earlier | First-past-the-post voting | 338 | 104,571 | |
| Senate (French: Sénat) | Upper | Until age 75, or resignation. | Appointed by the governor general, representing the monarch, on the advice of the prime minister | 105 | 318,825 | |||
 | National Assembly (Portuguese: {{Not a typo|Asembleia) | Unicameral | 5 | Closed list proportional representation with the D'Hondt method in constituencies | 72 | 4,990 | ||
 | National Assembly (French: Assemblée nationale) | Unicameral | 5 | Two-round system | 131 | 38,951 | ||
 | National Assembly (French: Assemblée nationale / Arabic: الجمعية الوطنية,) | Unicameral | 4 | Block voting If no list obtains an absolute majority, the seats are allocated through proportional representation | 188 | 66,640 | ||
 | National Congress (Spanish; Castilian: Congreso Nacional) | Chamber of Deputies (Spanish; Castilian: Cámara de Diputados) | Lower | 4 | Binomial voting system (To become open list proportional representation with the D'Hondt method in constituencies by the next election) | 155 | 145,021 | |
| Senate of the Republic (Spanish; Castilian: Senado de la República) | Upper | 8 | Binomial voting system | 38 | 457,963 | |||
| National People's Congress (Chinese: 全国人民代表大会,) | Unicameral | 5 | Elected by municipal, regional and provincial congresses, and People's Liberation Army | 2,980 | 448,518 | |||
 | Congress (Spanish; Castilian: Congreso) | Chamber of Representatives (Spanish; Castilian: Cámara de Representantes) | Lower | 4 | Open or closed list proportional representation (depending on the political party) with the D'Hondt method by state | 166 | 279,556 | |
| Senate (Spanish; Castilian: Senado) | Upper | 4 | Open or closed list proportional representation (depending on the political party) with the D'Hondt method nationwide with a 3% threshold | 102 | 454,964 | |||
 | Assembly of the Union (French: Assemblée de l'Union) | Unicameral | 5 | Two-round system, and elected by the local assemblies | 33 | 24,181 | ||
| Congo, Democratic Republic of the | Parliament (French: Parlement) | National Assembly (French: Assemblée nationale) | Lower | 5 | Parallel voting Open list proportional representation with the largest remainder method in constituencies and first-past-the-post voting | 500 | 143,425 | |
| Senate (French: Sénat) | Upper | 5 | Elected by the provincial assemblies | 108 | 664,008 | |||
| Congo, Republic of the | Parliament (French: Parlement) | National Assembly (French: Assemblée nationale) | Lower | 5 | Two-round system | 151 | 28,537 | |
| Senate (French: Sénat) | Upper | 5 | Elected by district, local, and regional councils | 52 | 83,966 | |||
 | Legislative Assembly (Spanish; Castilian: Asamblea Legislativa) | Unicameral | 4 | Closed list proportional representation with the largest remainder method by province | 57 | 75,468 | ||
 | Croatian Assembly (Croatian: Hrvatski sabor) | Unicameral | 4 | Open list proportional representation with the D'Hondt method in constituencies with a 5% threshold | 151 | 28,414 | ||
 | National Assembly of People's Power (Spanish; Castilian: Asamblea Nacional del Poder Popular) | Unicameral | 5 | Popular vote and approval by special candidacy commissions | 605 | 18,308 | ||
 | House of Representatives (Greek, Modern (1453-);: Βουλή των Αντιπροσώπων, / Turkish: Temsilciler Meclisi) | Unicameral | 5 | Open list proportional representation with the largest remainder method by constituency | 56 | 18,632 | ||
 | Parliament of the Czech Republic (Czech: Parlament České republiky) | Chamber of Deputies (Czech: Poslanecká sněmovna) | Lower | 4 | Open list proportional representation with the D'Hondt method by region with a 5% threshold | 200 | 52,811 | |
| Senate (Czech: Senát) | Upper | 6 | Two-round system (staggered elections) | 81 | 130,397 | |||
 | People's Assembly (Danish: Folketinget) | Unicameral | 4 | Open list proportional representation with the D'Hondt method in constituencies with a 2% threshold including the Faroe Islands and Greenland seats | 179 | 30,969 | ||
 | National Assembly (French: Assemblée nationale / Arabic: الجمعية الوطنية,) | Unicameral | 5 | Block vote and closed list proportional representation by constituencies: The list obtaining an absolute or relative majority of votes is allocated 80% of the seats; the remainder is allocated to the other best-placed lists which obtained at least 10% of the valid votes through proportional representation; if no other list obtains 10% of the valid votes, the remaining seats will be allocated to the party which won the majority or relative majority of the valid votes | 65 | 12,587 | ||
 | House of Assembly | Unicameral | 5 | First-past-the-post voting, and appointed by the President | 32 | 3,394 | ||
 | National Congress (Spanish; Castilian: Congreso Nacional) | Chamber of Deputies (Spanish; Castilian: Cámara de Diputados) | Lower | 4 | Open list proportional representation with the D'Hondt method by province and nationwide with a 1% threshold for the nationwide seats | 190 | 51,520 | |
| Senate (Spanish; Castilian: Senado) | Upper | 4 | First-past-the-post voting | 32 | 293,088 | |||
| National Parliament (Tetum: Parlamentu Nasionál / Portuguese: Parlamento Nacional) | Unicameral | 5 | Closed list proportional representation with the D'Hondt method nationwide with a 3% threshold | 65 | 16,408 | |||
 | National Assembly (Spanish; Castilian: Asamblea Nacional) | Unicameral | 4 | Parallel voting Closed list proportional representation in a nationwide constituency and first-past-the-post voting | 137 | 116,802 | ||
 | Parliament (Arabic: برلمان,) | Senate (Arabic: مجلس الشيوخ,) | Upper | 5 | 300 | 375,722 | ||
| House of Representatives (Arabic: مجلس النواب,) | Lower | 5 | Parallel voting First-past-the-post voting, block vote, and appointed by the President | 596 | 150,983 | |||
 | Legislative Assembly (Spanish; Castilian: Asamblea Legislativa) | Unicameral | 3 | Open list proportional representation with the largest remainder method by department and nationwide | 84 | 68,382 | ||
 | Parliament (Spanish; Castilian: Parlamento / French: Parlement / Portuguese: Parlamento) | Chamber of Deputies (Spanish; Castilian: Cámara de los Diputados / French: Chambre des députés / Portuguese: Câmara dos Deputados) | Lower | 5 | Closed list proportional representation in constituencies with a 10% threshold | 100 | 16,220 | |
| Senate (Spanish; Castilian: Senado / French: Sénat / Portuguese: Senado) | Upper | Closed list proportional representation with a 10% threshold, and appointed by the President | 70 | 23,171 | ||||
 | National Assembly (Tigrinya: ሃገራዊ ባይቶ,) | Unicameral | 5 | Popular vote | 104 | 50,878 | ||
 | State Assembly (Estonian: Riigikogu) | Unicameral | 4 | Open list proportional representation with the D'Hondt method in constituencies with a 5% threshold | 101 | 12,814 | ||
| Parliament (Swati: Liblanda) | House of Assembly (Swati: Indlu yeMalunga) | Lower | 5 | majority | 55 | 22,181 | ||
| Senate (Swati: Indlu yeTimphunga) | Upper | Appointed by the King | 30 | 40,666 | ||||
 | Parliament (Amharic: የፌዴራል ፓርላማ ምክር ቤት,) | House of Peoples' Representatives (Amharic: የሕዝብ ተወካዮች ምክር ቤት,) | Lower | 5 | First-past-the-post voting | 547 | 135,134 | |
| House of Federation (Amharic: የፌዴሬሽን ምክር ቤት,) | Upper | 5 | Elected by State Councils | 112 | 659,986 | |||
| Congress | Unicameral | 4 | First-past-the-post voting | 14 | 7,642 | |||
 | Parliament | Unicameral | 4 | Open list proportional representation with the D'Hondt method nationwide with a 5% threshold | 50 | 16,745 | ||
 | Parliament (Finnish: Eduskunta / Swedish: Riksdagen) | Unicameral | 4 | Open list proportional representation with the D'Hondt method in constituencies, and first-past-the-post for Åland's lone seat | 200 | 25,900 | ||
 | Parliament (French: Parlement) | National Assembly (French: Assemblée nationale) | Lower | 5 | Two-round system | 577 | 113,258 | |
| Senate (French: Sénat) | Upper | 6 | Elected indirectly by officials including regional councilors, department councilors, mayors, city councilors, and members of the National Assembly; two-round or proportional by department depending on the number of seats. | 348 | 187,787 | |||
 | Parliament (French: Parlement) | National Assembly (French: Assemblée nationale) | Lower | 5 | First-past-the-post voting, and appointed by the President | 121 | 12,190 | |
| Senate (French: Sénat) | Upper | 6 | Indirectly elected by local and départemental councillors | 102 | 14,460 | |||
| National Assembly | Unicameral | 5 | First-past-the-post voting, and appointed by the President | 58 | 25,673 | |||
 | Parliament of Georgia (Georgian: საქართველოს პარლამენტი,) | Unicameral | 4 | Parallel voting Closed list proportional representation in a nationwide constituency with a 5% threshold, and first-past-the-post | 150 | 29,794 | ||
 | Federal Diet (German: Bundestag) | Lower | 4 | Closed list mixed-member proportional representation with the Sainte-Laguë method by state with a 5% threshold, and first-past-the-post | 736 | 113,031 | ||
| Federal Council (German: Bundesrat) | Upper | Dependent on individual state elections | Delegated from state governments | 69 | 1,185,501 | |||
 | Parliament | Unicameral | 4 | First-past-the-post voting | 275 | 106,286 | ||
 | Hellenic Parliament (Greek, Modern (1453-);: Βουλή των Ελλήνων, Greek, Modern (1453-);: Vouli ton Ellinon) | Unicameral | 4 | Open list reinforced proportional representation with the D'Hondt method in constituencies with a 3% threshold | 300 | 35,958 | ||
 | Parliament | House of Representatives | Lower | 5 | First-past-the-post voting | 15 | 7,333 | |
| Senate | Upper | 5 | Appointed by the government and by the leader of opposition | 13 | 8,461 | |||
 | Congress of the Republic (Spanish; Castilian: Congreso de la República) | Unicameral | 4 | proportional closed list | 160 | 80,557 | ||
| valign=top |  | National Assembly (French: Assemblée nationale) | Unicameral | 5 | proportional closed list | 114 | 88,227 | |
 | National People's Assembly (Portuguese: Assembleia Nacional Popular) | Unicameral | 4 | proportional closed list | 100 | 13,454 | ||
 | National Assembly | Unicameral | 5 | popular vote and appointed by the President | 65 | 11,583 | ||
 | National Assembly (French: Assemblée nationale / Haitian; Haitian Creole: Asanble Nasyonal) | Chamber of Deputies (French: Chambre des députés / Haitian; Haitian Creole: Chanm Depite) | Lower | 4 | proportional | 119 | 98,181 | |
| Senate (French: Sénat / Haitian; Haitian Creole: Sena) | Upper | 6 | 30 | 323,997 | ||||
 | National Congress (Spanish; Castilian: Congreso Nacional) | Unicameral | 4 | proportional open list | 128 | 58,823 | ||
 | National Assembly (Hungarian: Országgyűlés) | Unicameral | 4 | proportional open list and Scorporo | 199 | 25,860 | ||
 | Assembly of All (Icelandic: Alþingi) | Unicameral | 4 | proportional | 63 | 5,080 | ||
 | Parliament (Hindi: संसद,) | House of the People (Hindi: लोक सभा,) | Lower | 5 | First-past-the-post | 543 | 2,192,379 | |
| Council of States (Hindi: राज्य सभा,) | Upper | 6 | Single transferable vote (233 members are elected by the legislative assemblies of the States/Union territories, 12 members are nominated by the President) | 245 | 4,847,900 | |||
 | People's Consultative Assembly (Indonesian: Majelis Permusyawaratan Rakyat) | People's Representative Council (Indonesian: Dewan Perwakilan Rakyat) | Lower | 5 | proportional open list | 575 | 467,101 | |
| Regional Representative Council (Indonesian: Dewan Perwakilan Daerah) | Upper | 5 | Single non-transferable vote | 136 | 1,974,875 | |||
| Islamic Consultative Assembly (Persian: مجلس شورای اسلامی,) | Unicameral | 4 | popular vote | 290 | 259,136 | |||
 | Council of Representatives of Iraq (Arabic: مجلس النواب العراقي, / Kurdish: ئهنجومهنی نوێنهران,) | Unicameral | 4 | proportional open list | 329 | 95,782 | ||
 Ireland | Parliament (Irish: Oireachtas) | President of Ireland (Irish: Uachtarán) | President-in-Parliament | 7 | Instant-runoff voting | N/A | N/A | |
| House of Representatives of Ireland (Irish: Dáil Éireann) | Lower | 5 | Proportional Representation Single Transferable Vote | 160 | 27,640 | |||
| Senate of Ireland (Irish: Seanad Éireann) | Upper | 5 | Appointed by the prime minister, elected by local and national elected representatives, and elected by graduates of universities | 60 | 76,470 | |||
 | Assembly (Hebrew: כנסת,) | Unicameral | 4 | proportional closed list | 120 | 61,768 | ||
 | Parliament (Italian: Parlamento) | Chamber of Deputies (Italian: Camera dei Deputati) | Lower | 5 | parallel voting (245 seats by proportional representation, 147 seats by first past the post and 8 abroad by proportional representation) | 400 | 152,738 | |
| Senate of the Republic (Italian: Senato della Repubblica) | Upper | 5 | parallel voting (122 seats by proportional representation, 74 seats by first past the post and 4 abroad by proportional representation), 5 members appointed by the President and former Presidents by right | 200 | 296,580 | |||
| Parliament (French: Parlement) | National Assembly (French: Assemblée nationale) | Lower | 5 | majority | 255 | 294,529 | ||
| Senate (French: Sénat) | Upper | 5 | Elected by district and provincial councils, and appointed by the President | 120 | 197,837 | |||
 | Parliament | House of Representatives | Lower | 5 | First-past-the-post voting | 63 | 45,860 | |
| Senate | Upper | 5 | Appointed by the governor-general | 21 | 137,580 | |||
 | Diet (Japanese: 国会,) | House of Representatives (Japanese: 衆議院,) | Lower | 4 | proportional and First-past-the-post voting | 465 | 270,817 | |
| House of Councillors (Japanese: 参議院,) | Upper | 6 | proportional and Single non-transferable vote | 245 | 514,000 | |||
 | Parliament (Arabic: مجلس الأمة,) | House of Representatives (Arabic: مجلس النواب,) | Lower | 4 | Single non-transferable vote | 130 | 46,760 | |
| Senate (Arabic: مجلس الأعيان,) | Upper | 6 | Appointed by the monarch | 75 | 93,520 | |||
 | Parliament (Kazakh: Парламенті,) | Assembly (Kazakh: Мәжіліс,) | Lower | 5 | 107 | 207,854 | ||
| Senate (Kazakh: Сенаты,) | Upper | 6 | Appointed by the President and elected by local assemblies | 49 | 340,527 | |||
 | Parliament (Swahili: Bunge) | National Assembly (Swahili: Bunge la Taifa) | Lower | 5 | 349 | 126,182 | ||
| Senate (Swahili: Seneti) | Upper | 5 | Popular vote and appointed by the President | 67 | 657,278 | |||
 | House of Assembly (Gilbertese: Maneaba ni Maungatabu) | Unicameral | 4 | popular vote and appointed by Rabi Council of Leaders | 46 | 2,239 | ||
| Korea, North | Supreme People's Assembly (Korean: 최고인민회의 / Korean: 最高人民會議, Korean: Ch'oe-go In-min Hoe-ŭi) | Unicameral | 5 | popular vote | 687 | 36,390 | ||
| Korea, South | National Assembly (Korean: 국회 / Korean: 國會, Korean: Gukhoe) | Unicameral | 4 | majority and proportional | 300 | 166,691 | ||
 | National Assembly (Arabic: مجلس الأمة,) | Unicameral | 4 | popular vote and appointed by the emir | 50 | 71,328 | ||
 | Supreme Council (Kirghiz; Kyrgyz: Жогорку Кеңеш,) | Unicameral | 5 | popular vote | 90 | 44,690 | ||
| National Assembly (Lao: ສະພາແຫ່ງຊາດ,) | Unicameral | 5 | one-party state closed list | 115 | 48,148 | |||
 | Parliament (Latvian: Saeima) | Unicameral | 4 | proportional closed list | 100 | 20,703 | ||
 | Parliament (Arabic: مجلس النواب, / French: Chambre des Députés) Also: National Assembly (French: Assemblée nationale) | Unicameral | 4 | proportional/party list | 128 | 33,000 | ||
 | Parliament (Sotho, Southern: Palamente ea Lesotho) | National Assembly (Sotho, Southern: Lekhotleng la Sechaba) | Lower | 5 | popular vote and proportional | 120 | 16,927 | |
| Senate (Sotho, Southern: Ntlong ea Mahosana) | Upper | 5 | appointed by principal chiefs and by the ruling party | 33 | 61,556 | |||
 | Legislature | House of Representatives | Lower | 6 | majority | 73 | 47,624 | |
| Senate | Upper | 9 | majority | 30 | 115,896 | |||
 | House of Representatives (Arabic: مجلس النواب,) | Unicameral | Parallel voting First-past-the-post, single non-transferable vote, and proportional representation | 200 | 28,353 | |||
 | Diet (German: Landtag) | Unicameral | 4 | proportional closed list | 25 | 1,451 | ||
 | Parliament (Lithuanian: Seimas) | Unicameral | 4 | proportional | 141 | 21,658 | ||
 | Chamber of Deputies (Luxembourgish; Letzeburgesch: D'Chamber / French: Chambre des députés / German: Abgeordnetenkammer) | Unicameral | 5 | Open list proportional representation, allocated by the D'Hondt method in four constituencies | 60 | 11,013 | ||
 | Parliament (Malagasy: Palemanta / French: Parlement) | National Assembly (Malagasy: Antenimieram-Pirenena / French: Assemblée nationale) | Lower | 5 | 160 | 137,078 | ||
| Senate (Malagasy: Antenimierandoholona / French: Sénat) | Upper | 5 | 33 | 664,430 | ||||
 | National Assembly | Unicameral | 5 | First-past-the-post voting | 193 | 76,809 | ||
 | Parliament (Malay: Parlimen) | House of Representatives (Malay: Dewan Rakyat) | Lower | 5 | First-past-the-post voting | 222 | 127,631 | |
| Senate (Malay: Dewan Negara) | Upper | 3 | 26 appointed by the State Legislative Assemblies, 2 for each state and 44 appointed by the Yang di-Pertuan Agong, of which 4 are for the Federal Territories. | 70 | 404,773 | |||
 | People's Assembly | Unicameral | 5 | First-past-the-post voting | 85 | 4,266 | ||
 | National Assembly | Unicameral | 4 | 147 elected in single or multi-member constituencies, using a runoff system. 13 elected by overseas Malians. | 160 | 90,732 | ||
 | Parliament | President of Malta | President-in-Parliament | 5 | Appointed by the House of Representatives | N/A | N/A | |
| House of Representatives | Unicameral | 5 | Single transferable vote | 69 | 5,950 | |||
 | Legislature (Marshallese: Nitijeļā) | Unicameral | 4 | Single and multi-member constituencies | 33 | 2,060 | ||
 | Parliament (Arabic: البرلمان, / French: Parlement) | National Assembly (Arabic: الجمعية الوطنية, / , / French: Assemblée nationale) | Unicameral | 5 | Parallel voting 50% seats elected via closed list proportional representation with the largest remainder method across three national lists and some urban districts, 50% elected via a general ticket with a two-round system by electoral district | 176 | N/A | |
 | National Assembly (French: Assemblée nationale) | Unicameral | 5 | 65 | 17,614 | |||
 | Congress of the Union (Spanish; Castilian: Congreso de la Unión) | Chamber of Deputies (Spanish; Castilian: Cámara de Diputados) | Lower | 3 | Parallel voting Largest remainder method (Hare quota) (200 seats) / FPTP (300 seats) | 500 | 227,821 | |
| Chamber of Senators (Spanish; Castilian: Cámara de Senadores) | Upper | 6 | Parallel voting | 128 | 889,926 | |||
| Parliament (Romanian; Moldavian; Moldovan: Parlamentul) | Unicameral | 4 | 101 | 33,498 | ||||
 | National Council (French: Conseil National) | Unicameral | 5 | Panachage under party-list proportional representation (16), party-list proportional representation (8) | 24 | 1,473 | ||
 | State Great Assembly (Mongolian: Улсын Их Хурал,) | Unicameral | 4 | Plurality-at-large voting | 76 | 36,245 | ||
 | Assembly (Skupština,) | Unicameral | 4 | Closed list proportional representation using the D'Hondt method in a single nationwide constituency with a 3% electoral threshold with lower thresholds for minority groups under certain circumstances | 81 | 7,719 | ||
 | Parliament (Arabic: البرلمان المغربي, / Berber languages: ⴰⴱⵕⵍⴰⵎⴰⵏ ⴰⵎⵖⵔⵉⴱⵉ / French: Parlement< | --While French is not official it is de facto in large currency http://web.archive.org/web/20200626055023/https://www.cia.gov/library/publications/the-world-factbook/geos/mo.html and see Languages of Morocco -->) | House of Representatives (Arabic: مجلس النواب, / Berber languages: ⴰⴳⵔⴰⵡ ⵉⵎⴰⵔⴰⵢⴻⵏ, / French: Chambre des représentants) | Lower | 5 | Mixed member majoritarian Single non-transferable vote for 305 seats, 60 seats reserved for women and 30 seats reserved for young people under 40 by proportional representation | 395 | 100,444 |
| House of Councillors (Arabic: مجلس المستشارين, / Berber languages: ⴰⵙⵇⵇⵉⵎ ⵏ ⵉⵏⵙⴼⴰⵡⵏ, / French: Chambre des conseillers) | Upper | 6 | Indirect election 72 members are elected at the Kingdom's regional level, 20 in each region by a single electoral college made up of all those in the relevant region that have been elected to specific professional associations, 8 in each region by an electoral college made up of those elected from the most representative employers' professional organizations, 20 by a nationwide electoral college made up of employees | 270 | 120,905 | |||
 | Assembly of the Republic (Portuguese: Assembleia da República) | Unicameral | 5 | proportional party list | 250 | 85,588 | ||
 (Burma) | Assembly of the Union (Burmese: ပြည်ထောင်စုလွှတ်တော်,) | House of Representatives (Burmese: ပြည်သူ့လွှတ်တော်,) | Lower | 5 | popular vote and appointed by the military | 440 | 137,000 | |
| House of Nationalities (Burmese: အမျိုးသားလွှတ်တော်,) | Upper | 5 | popular vote and appointed by the military | 224 | 269,107 | |||
 | Parliament | National Assembly | Lower | 5 | Closed list proportional representation and appointments by the President | 104 | 26,923 | |
| National Council | Upper | 6 | Indirect election by Regional Councils | 26 | 80,769 | |||
 | Parliament (Nauru: Naoero parliament) | Unicameral | 3 | Dowdall system | 19 | 521 | ||
 | Federal Parliament (Nepali: संघीय संसद,) | House of Representatives (Nepali: प्रतिनिधि सभा,) | Lower | 5 | Mixed member majoritarian (165 members elected through First-past-the-post voting and 110 elected through proportional representation voting method) | 275 | 105,392 | |
| National Assembly (Nepali: राष्ट्रिय सभा,) | Upper | 6 | Indirect single transferable vote and 3 members appointed by the President | 59 | 491,233 | |||
 | States General (Dutch; Flemish: Staten-Generaal) | House of Representatives (Dutch; Flemish: Tweede Kamer,) | Lower | 4 | Party-list proportional representation | 150 | 111,533 | |
| Senate (Dutch; Flemish: Eerste Kamer,) | Upper | 4 | Indirect party-list proportional (by members of the states-provincial and the Caribbean Electoral colleges for the Senate) | 75 | 223,066 | |||
 | Parliament (Maori: Pāremata) | House of Representatives (Maori: Whare o ngā Māngai) | Unicameral | 3 | Closed list mixed-member proportional representation with a 5% threshold | 120 | 33,566 | |
 | National Assembly (Spanish; Castilian: Asamblea Nacional) | Unicameral | 5 | 90 | 64,034 | |||
 | National Assembly (French: Assemblée nationale) | Unicameral | 5 | 171 | 139,210 | |||
 | National Assembly | House of Representatives | Lower | 4 | 360 | 388,898 | ||
| Senate | Upper | 4 | 109 | 1,284,436 | ||||
| Assembly (Macedonian: Собрание,) | Unicameral | 4 | 120 | 16,736 | ||||
 | Great Assembly (Norwegian: Stortinget) | Unicameral | 4 | proportional mixed | 169 | 29,785 | ||
 | Council of Oman (Arabic: مجلس عُـمان,) | Consultative Assembly (Arabic: مجلس الشورى,) | Lower | 4 | 84 | 33,017 | ||
| Council of State (Arabic: مجلس الدولة,)[7] | Upper | 4 | 85 | 32,628 | ||||
 | Parliament of Pakistan (Urdu: پارلیمنٹ, or Urdu: مجلسِ شوریٰ,,) | National Assembly (Urdu: ایوان زیریں,,) | Lower | 5 | 342 | 537,023 | ||
| Senate (Urdu: ایوانِ بالا,,) | Upper | 6 | 104 | 1,735,000 | ||||
 | National Congress (Palauan: Olbiil era Kelulau) | House of Delegates | Lower | 4 | majority | 16 | 1,309 | |
| Senate | Upper | 4 | majority | 13 | 2,328 | |||
| Legislative Council (Arabic: المجلس التشريعي,) | Unicameral | 132 | 32,277 | |||||
 | National Assembly (Spanish; Castilian: Asamblea Nacional) | Unicameral | 5 | 71 | 47,969 | |||
 | National Parliament | Unicameral | 5 | 109 | 56,766 | |||
 | Congress (Spanish; Castilian: Congreso) | Chamber of Deputies (Spanish; Castilian: Cámara de Diputados) | Lower | 5 | 80 | 80,681 | ||
| Chamber of Senators (Spanish; Castilian: Cámara de Senadores) | Upper | 5 | 45 | 143,434 | ||||
 | Congress of the Republic (Spanish; Castilian: Congreso de la República / Guarani: Rimana Wasin) | Unicameral | 5 | 130 | 217,082 | |||
 | Congress (Filipino; Pilipino: Kongreso) | House of Representatives (Filipino; Pilipino: Kapulungan ng mga Kinatawan or Filipino; Pilipino: Mababang Kapulungan, / Spanish; Castilian: Cámara de Representantes) | Lower | 3 | Parallel voting Largest remainder method via closed lists with a three-seat cap (20% of seats), and first-past-the-post voting (80% of seats) | 304 | 341,364 | |
| Senate (Filipino; Pilipino: Senado or Filipino; Pilipino: Mataas na Kapulungan,) | Upper | 6 | bloc voting. Voter is allocated 12 votes. 1/2 of the seats are contested every 3 years with the 12 elected senators having the largest portion of the National Popular Vote | 24 | 4,323,958 | |||
 | Parliament of Poland (Polish: Parlament) National Assembly (Polish: Zgromadzenie Narodowe) | Sejm (Polish: Sejm) | Lower | 4 | proportional open list | 460 | 83,697 | |
| Senate (Polish: Senat) | Upper | 4 | majority | 100 | 385,010 | |||
 | Assembly of the Republic (Portuguese: Assembleia da República) | Unicameral | 4 | proportional party list | 230 | 45,920 | ||
 | Consultative Assembly (Arabic: مجلس الشورى,) | Unicameral | 35 | 52,958 | ||||
 | Parliament (Romanian; Moldavian; Moldovan: Parlamentul) | Chamber of Deputies (Romanian; Moldavian; Moldovan: Camera Deputaților) | Lower | 4 | 329 | 58,416 | ||
| Senate (Romanian; Moldavian; Moldovan: Senat) | Upper | 4 | 137 | 139,005 | ||||
| Federal Assembly (Russian: Федеральное Собрание,) | State Duma (Russian: Государственная Дума,) | Lower | 5 | parallel (First-past-the-post voting for 225 members and proportional party list for 225 members) | 450 | 318,000 | ||
| Federation Council (Russian: Совет Федерации,) | Upper | dependent on individual elections in the federal subjects (4 or 5) | senators are delegated from the executive and legislative bodies of the federal subjects | 170 | 862,048 | |||
 | Parliament (Kinyarwanda: Inteko Ishinga Amategeko / French: Parlement) | Chamber of Deputies (Kinyarwanda: Umutwe w'Abadepite / French: Chambre des députés) | Lower | 5 | 80 | 146,121 | ||
| Senate Kinyarwanda: (Umutwe wa Sena / French: Sénat) | Upper | 8 | 26 | 449,603 | ||||
 | National Assembly | Unicameral | 5 | 15 | 3,686 | |||
 Saint Lucia | Parliament | House of Assembly | Lower | 5 | 17 | 10,221 | ||
| Senate | Upper | 11 | 15,796 | |||||
 | House of Assembly | Unicameral | 5 | 21 | 5,714 | |||
 | Parliament (Samoan: Palemene) | Legislative Assembly (Samoan: Fono Aoao Faitulafono) | Unicameral | 5 | 51 | 3,916 | ||
 | Grand and General Council (Italian: Consiglio Grande e Generale) | Unicameral | 5 | 60 | 536 | |||
| National Assembly (Portuguese: Assembleia Nacional) | Unicameral | 4 | 55 | 3,330 | ||||
 | Consultative Assembly (Arabic: مجلس الشورى,) | non-parliamentary | 4 | Appointed by the King | 150 | 220,000 | ||
 | National Assembly (French: Assemblée nationale) | Unicameral | 5 | 150 | 85,701 | |||
 | National Assembly (Serbian: Народна скупштина / Serbian: Narodna skupština) | Unicameral | 4 | 250 | 28,482 | |||
 | National Assembly (French: Assemblée nationale / Lasanble Nasyonal) | Unicameral | 5 | 31 | 2,709 | |||
 | Parliament | Unicameral | 5 | 146 | 40,136 | |||
 | Parliament (Malay: Parlimen / Chinese: 国家议会, / Tamil: நாடாளுமன்றம்,) | Unicameral | 5 | First-past-the-post voting (MP) (in single member constituencies), Party block voting (in group representation constituencies), and appointed by the President (NMP) | 103 | 52,360 | ||
 | National Council (Slovak: Národná rada) | Unicameral | 4 | 150 | 35,980 | |||
 | Parliament (Slovenian: Državni zbor Republike Slovenije) | National Assembly (Slovenian: Državni zbor) | Lower | 4 | Open list proportional representation with a 4% election threshold | 90 | 22,779 | |
| National Council (Slovenian: Državni svet)[8] | Upper | 5 | First-past-the-post indirect elections held within 'functional' interest organisations and 'local' interest communities by electoral bodies (electors). | 40 | 51,254 | |||
 | National Parliament | Unicameral | 4 | 50 | 10,460 | |||
 | Federal Parliament (Somali: Baarlamaanka Federaalka / Arabic: لبرلمان الاتحادي,) | House of the People | Lower | 4 | Appointed by president | 275 | 36,675 | |
| Senate (Somali: Aqalka Sare) | Upper | 4 | majority | 54 | 180,100 | |||
 | Parliament | National Assembly | Lower | 5 | 400 | 126,466 | ||
| National Council of Provinces | Upper | 90 | 562,075 | |||||
| National Legislature | National Legislature Assembly | Lower | 170 | 48,591 | ||||
| Council of States | Upper | Appointed by President | 50 | 165,210 | ||||
 | General Courts (Spanish; Castilian: Cortes Generales) | Congress of Deputies (Spanish; Castilian: Congreso de los Diputados) | Lower | 4, unless elections are called earlier. | proportional closed list | 350 | 131,894 | |
| Senate (Spanish; Castilian: Senado) | Upper | 4, unless elections are called earlier. | 208 are appointed through general election and 57 when regional legislatures are renewed, which not always happens at the same date | 265 | 173,545 | |||
 | Parliament (Sinhala; Sinhalese: පාර්ලිමේන්තුව, / Tamil: பாராளுமன்றம்,) | Unicameral | 5 | 225 | 90,122 | |||
 | National Legislature (Arabic: المجلس التشريعي,) | National Assembly (Arabic: المجلس الوطني, | Lower | 6 | 426 | 68,653 | ||
| Council of States (Arabic: المجلس الولايات,) | Upper | 6 | 50 | 617,880 | ||||
 | National Assembly (Dutch; Flemish: Nationale Assemblée) | Unicameral | 5 | 51 | 10,470 | |||
 | Parliament (Swedish: Riksdagen) | Unicameral | 4 | Open list[9] proportional representation through the Sainte-Laguë method with a 4% election threshold[10] in constituencies based upon the Counties of Sweden | 349 | 27,286 | ||
| People's Assembly (Arabic: مجلس الشعب,) | Unicameral | 4 | 250 | 86,964 | ||||
 | Federal Assembly (German: Bundesversammlung / French: Assemblée fédérale / Italian: Assemblea federale / Romansh: Assamblea federala) | National Council (German: Nationalrat / French: Conseil national / Italian: Consiglio nazionale / Romansh: Cussegl naziunal) | Lower | 4 | Open-list proportional with panachage and apparentment by canton.[11] | 200 | 40,000 | |
| Council of States (German: Ständerat / French: Conseil des États / Italian: Consiglio degli Stati / Romansh: Cussegl dals chantuns) | Upper | 4 | Each canton has one or two seats, two-round or proportional representation depending on the canton. | 46 | 173,913 | |||
 | Supreme Assembly (Tajik: Маҷлиси Олии,) | Assembly of Representatives (Tajik: Маҷлиси намояндагон,) | Lower | 5 | 63 | 123,809 | ||
| National Assembly (Tajik: Маҷлиси миллии,) | Upper | 5 | 33 | 236,363 | ||||
| National Assembly (Swahili: Bunge) | Unicameral | 5 | 384 | 120,974 | ||||
 | National Assembly (Thai: รัฐสภา,) | House of Representatives (Thai: สภาผู้แทนราษฎร,) | Lower | 4 | mixed-member proportional representation, 350 are first-past-the-post and 150 is party-list | 500 | 140,997 | |
| Senate (Thai: วุฒิสภา,) | Upper | 5 | indirect limited voting with self-nomination | 200 | - | |||
 | National Assembly (French: Assemblée nationale) | Unicameral | 5 | 91 | 76,434 | |||
 | Legislative Assembly (Tonga (Tonga Islands);: Fale Alea) | Unicameral | 4, Unless elections are called early | Single non-transferable vote | 25 | 3,962 | ||
 | Parliament | House of Representatives | Lower | 5 | 41 | 32,139 | ||
| Senate | Upper | 31 | 42,506 | |||||
 | Assembly of the Representatives of the People (Arabic: مجلس نواب الشعب, / French: Assemblée des représentants du peuple, ARP) | Unicameral | 5 | 217 | 49,188 | |||
 | Grand National Assembly | Unicameral | 5 | Closed list proportional representation D'Hondt method with a 7% electoral threshold for political parties or political alliances | 600 | 135,862 | ||
 | Assembly (Turkmen: Mejlis) | Unicameral | 5 | majority voting in single member constituencies. | 125 | 41,360 | ||
 | Parliament (Tuvalu: Palamene) | Unicameral | 4 | 15 | 666 | |||
 | Parliament (Swahili: Bunge) | Unicameral | 5 | 529 | 87,839 | |||
 | Supreme Council (Ukrainian: Верховна Рада,) | Unicameral | 5 | 450 | 101,248 | |||
 | Federal National Assembly (Arabic: المجلس الوطني الإتحادي,) | Unicameral | 4 | 40 | 206,601 | |||
 | Parliament | House of Commons | Lower | 5, unless elections are called earlier. | First-past-the-post voting in single member constituencies. | 650 | 95,787 | |
| House of Lords | Upper | Life (life and hereditary peers)Until end of religious term(bishops) | Life peers appointed by the Sovereign on advice of prime minister. 92 are elected by and from hereditary peers using preferential voting. 26 Lords Spiritual are bishops of the Church of England, chosen by the Church mainly based on seniority (except that female bishops are appointed regardless of seniority). | 86,700 | ||||
 | Congress | House of Representatives | Lower | 2 | Depends on the state, mainly First-past-the-post voting, in single-member constituencies. | 435 | 722,636 | |
| Senate | Upper | 6 | Depends on the state, mainly First-past-the-post voting. One-third of the Senate goes up for election every two years. Each state has two senators. | 100 | N/A | |||
 | General Assembly (Spanish; Castilian: Asamblea General) | Chamber of Representatives (Spanish; Castilian: Cámara de Representantes) | Lower | 5 | 99 | 33,195 | ||
| Chamber of Senators (Spanish; Castilian: Cámara de Senadores) | Upper | 5 | 30 | 109,543 | ||||
 | Supreme Assembly (Uzbek: Oliy Majlis, Uzbek: Олий Мажлис) | Legislative Chamber (Uzbek: Qonunchilik palatasi, Uzbek: Қонунчилик палатаси) | Lower | 5 | 150 | 194,156 | ||
| Senate (Uzbek: Senati, Uzbek: Сенати) | Upper | 5 | 100 | 291,234 | ||||
 | Parliament (Bislama: Palamen / French: Parlement) | Unicameral | 4 | 52 | 4319 | |||
| /Holy See | Pontifical Commission (Latin: Pontificia Commissione / Italian: Pontificia Commissio) | Unicameral | 5 | 7 | 114 | |||
| National Assembly (Spanish; Castilian: Asamblea Nacional) | Unicameral | 5 | 277 | 175,430 | ||||
| National Assembly (Vietnamese: Quốc hội) | Unicameral | 5 | 500 | 176,385 | ||||
 | Parliament | House of Representatives (Arabic: مجلس النواب,) | Lower | 6 | 301 | 81,485 | ||
| Shura Council (Arabic: مجلس الشورى,)[12] | Upper | Life | 111 | 220,963 | ||||
 | National Assembly | Unicameral | 5 | 166 | 87,284 | |||
 | Parliament | National of Assembly | Lower | 5 | 210 | 61,971 | ||
| Senate | Upper | 5 | 40 | 325,350 | ||||
| Region or territory | Overall name of legislature | Name of house | House level | Term (years) | Voting system | Seats | Population per seat | |
|---|---|---|---|---|---|---|---|---|
| Supreme Council of the Autonomous Republic of Adjara (აჭარის ავტონომიური რესპუბლიკის უმაღლესი საბჭო) | Unicameral | 4 | 21 | 16,619 | ||||
| Legislative Assembly (Lagtinget) | Unicameral | 4 | 30 | 945 | ||||
| States (États) | Unicameral | 4 | 10 | 240 | ||||
 | Legislative Assembly (Fono) | House of Representatives | Lower | 2 | 21 | 2,643 | ||
| Senate | Upper | 4 | 18 | 3,084 | ||||
 | House of Assembly | Unicameral | 5 | 11 | 1,222 | |||
| Regional Council (Consiglio regionale/Conseil) | Unicameral | 5 | 35 | 3,597 | ||||
 | Estates (Staten) | Unicameral | 4 | 21 | 4,832 | |||
| Legislative Assembly (Assembleia Legislativa) | Unicameral | 4 | 57 | 4,311 | ||||
| Bangsamoro | Parliament | Unicameral | 3 | Parallel voting | 80 | 53,414 | ||
| Parliament | Unicameral | 4 | Closed party lists in three 25-seat constituencies, with seats allocated using the D'Hondt method | 75 | 29,194 | |||
 | Parliament | House of Assembly | Lower | 5 | 36 | 1,784 | ||
| Senate | Upper | 11 | 5,839 | |||||
| House of Assembly | Unicameral | 4 | 15 | 1,969 | ||||
| Parliament (Parlamento de Canarias) | Unicameral | 4 | 70 | 35,000 | ||||
| Parliament (Parlament de Catalunya) | Unicameral | 4 | 135 | 55,723 | ||||
 | Legislative Assembly | Unicameral | 4 | 18 | 3,080 | |||
 | Parliament | Unicameral | 4 | 24 | 875 | |||
| Corsican Assembly (Assemblea di Corsica / Assemblée de Corse) | Unicameral | 6 | 63 | 5,238 | ||||
| Crimea | State Council (Верховна Рада / Верховный Совет / Yuqarı Radası) | Unicameral | 100 | 22,840 | ||||
| Estates (Staten) | Unicameral | 4 | 21 | 7,571 | ||||
| Legislative Assembly | Unicameral | 4 | 11 | 272 | ||||
 | Law Assembly (Løgtingið) | Unicameral | 4 | 33 | 1,467 | |||
 | Assembly (Assemblée de la Polynésie française) | Unicameral | 5 | At-large two-round in 8 sections, 19 seats plurality and 38 proportional, 12.5% or top-2 threshold for qualification. | 57 | 4,859 | ||
| Parliament (Parlamento da Galiza/Galicia) | Unicameral | 4 | 75 | 36,649 | ||||
 | Parliament | Unicameral | 4 | 17 | 1,750 | |||
 | Parliament (Inatsisartut) | Unicameral | 4 | 31 | 1,830 | |||
 | Legislature (Liheslaturan Guåhan) | Unicameral | 4 | 15 | 10,623 | |||
| States (États) | Unicameral | 4 | 45 | 1,387 | ||||
 | Legislative Council (立法會) | Unicameral | 4 | Proportional representation using the Hare quota and the largest remainder method for the geographical constituencies and functional constituencies elected by their respective electorates | 70 | 101,481 | ||
| Tynwald (Tinvaal) | House of Keys (Kiare as Feed) | Lower | 5 | Plurality (2 members from each constituency) | 24 | 3,520 | ||
| Legislative Council (Yn Choonceil Slattyssagh) | Upper | 5 | Most members indirectly elected by the House of Keys | 11 | 7,681 | |||
| States Assembly (Assemblée des États) | Unicameral | 4 | Mixed plurality block voting and first-past-the-post voting | 49 | 2,107 | |||
| Kurdistan Region Parliament (پەرلەمانی کوردستان) | Unicameral | 5 | 111 | 53,109 | ||||
| Legislative Assembly (立法會, Assembleia Legislativa) | Unicameral | 4 | Proportional representation, functional constituencies and appointed by the Chief Executive | 29 | 19,610 | |||
| Legislative Assembly (Assembleia Legislativa) | Unicameral | 4 | 47 | 5,698 | ||||
 | Legislative Assembly | Unicameral | 5 | 9 | 546 | |||
| Supreme Assembly (Ali Məclisi) | Unicameral | 5 | 45 | 10,063 | ||||
 | Congress (Congrès Territorial) | Unicameral | 5 | Closed-list proportional representation by province with 5% (of registered voters) threshold | 54 | 4,547 | ||
| Northern Ireland Assembly (Tionól Thuaisceart Éireann) | Unicameral | 5 | Single transferable vote | 90[13] | 16,767 | |||
 | Commonwealth Legislature | House of Representatives | Lower | 2 | 20 | 2,694 | ||
| Senate | Upper | 2 | 10 | 5,388 | ||||
 | Assembly | Unicameral | 3 | 20 | 69 | |||
| Island Council | Unicameral | 3 | 10 | 6 | ||||
 | Legislative Assembly (Asamblea Legislativa) | House of Representatives (Cámara de Representantes) | Lower | 4 | First-past-the-post voting | 51 | 63,172 | |
| Senate (Senado) | Upper | 4 | Majority | 27 | 119,326 | |||
| Territorial Council | Unicameral | 5 | At-large two-round, 7 seats by plurality and 12 seats proportional, 10% or top-2 threshold for qualification. | 19 | 488 | |||
| Legislative Council | Unicameral | 4 | 21 | 1,266 | ||||
| (conseil territorial) | Unicameral | 6 | At-large two-round, 8 seats by plurality and 15 seats proportional, 10% or top-2 threshold for qualification. | 23 | 1,578 | |||
 | Territorial Council | Unicameral | 6 | At-large two-round, 10 seats by plurality and 9 seats proportional, 10% or top-2 threshold for qualification. | 19 | 320 | ||
| Regional Council (Consiglio regionale) | Unicameral | 5 | 60 | 27,470 | ||||
| Chief Pleas | Unicameral | 12 | 50 | |||||
| Scottish Parliament (Pàrlamaid na h-Alba, Scots Pairlament) | Unicameral | 5 | Additional member system | 129 | 40,734 | |||
| Regional Assembly (Assemblea Regionale) | Unicameral | 5 | 70 | 71,675 | ||||
| Estates (Staten) | Unicameral | 4 | 15 | 2,495 | ||||
| Landtag | Unicameral | 5 | 35 | 14,621 | ||||
 | Parliament | Unicameral | 3 | 20 | 70 | |||
| Council (Consiglio) | Unicameral | 5 | 35 | 15,405 | ||||
 | House of Assembly | Unicameral | 4 | 21 | 1,498 | |||
| Legislature | Unicameral | 2 | 15 | 7,093 | ||||
| Assembly (Скупштина / Skupština / Képviselőháza / Adunarea / Zhromaždenie) | Unicameral | 4 | Proportional representation in a single constituency with a 5% threshold and seats being allocated using d'Hondt method | 120 | 16,098 | |||
| Senedd (Welsh Parliament / Senedd Cymru) | Unicameral | 5 | Closed-list[14] | 60 | 51,066 | |||
 | Territorial Assembly (Assemblée Territoriale) | Unicameral | 5 | Proportional representation by constituency | 20 | 650 | ||
| House of Representatives (Baraza la Wawakilishi) | Unicameral | 5 | First-past-the-post voting | 88 | 17,086 | |||
| non-UN state | Overall name of legislature | Name of house | House level | Term (years) | Voting system | Seats | Population per seat | |
|---|---|---|---|---|---|---|---|---|
| People's Assembly (Жәлар Реизара, Zhelar Reizara) | Unicameral | 5 | 35 | 6,877 | ||||
| Azad Kashmir | Azad Kashmir Legislative Assembly | Unicameral | 5 | First past the post | 53 | 1200 | ||
| Assembly of Kosovo (Albanian: Kuvendi i Kosovës, Serbian Cyrillic: Serbian: Скупштина Косова) | Unicameral | 4 | 120 | 15,493 | ||||
| Assembly of the Republic (Cumhuriyet Meclisi) | Unicameral | 5 | 50 | 5,898 | ||||
| Sahrawi National Council (المجلس الوطني الصحراوي Al-Majlis al-Watani al-Sahrawi) | Unicameral | 2 | 53 | |||||
| Parliament (Baarlamaanka) | House of Representatives (Golaha Wakiilada) | Lower | 5 | 82 | 42,682 | |||
| House of Elders (Golaha Guurtida) | Upper | 6 | 82 | 42,682 | ||||
| Parliament | Unicameral | 5 | 34 | 2,117 | ||||
| Legislative Yuan (立法院 Lìfǎ Yùan) | Unicameral | 4 | First-past-the-post voting, Closed party-list proportional representation and indigenous seats with single non-transferable vote | 113 | 208,754 | |||
| Central Tibetan Administration (in exile) | Parliament of the Central Tibetan Administration (གྲོས་ཚོགས་ཐོག་གསུང་བཤད།) | Unicameral | 5 | 43 | 73,953 | |||
| Supreme Council[15] (Верховный Совет, Verkhovny Sovet) | Unicameral | 5 | 33 | |||||