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{{short description|Parliamentary system of government}}
{{Use dmy dates|date=November 2019}}
[[File:London Parlament-20090730-RM-110352.jpg|alt=The Houses of Parliament in Westminster|thumb|The [[Palace of Westminster]], after which the Westminster system is named. It is the home of the [[Parliament of the United Kingdom|UK Parliament]].]]
{{Executive}}
The '''Westminster system''', or '''Westminster model''', is a type of [[parliamentary system|parliamentary]] government that incorporates a series of [[Parliamentary procedure|procedures]] for operating a [[legislature]], first developed in [[England]]. Key aspects of the system include an [[executive branch]] made up of members of the legislature, and that is [[responsible government|responsible]] to the legislature; the presence of [[parliamentary opposition]] parties; and a ceremonial [[head of state]] who is separate from the [[head of government]]. The term derives from the [[Palace of Westminster]], which has been the seat of the [[Parliament of the United Kingdom|Westminster Parliament]] in England and later the United Kingdom since the 13th century. The Westminster system is often contrasted with the [[presidential system]] that originated in the [[United States]],<ref>{{Cite book|title=Political Representation|publisher=Cambridge University Press|year=2010|isbn=978-0521128650|chapter=Varieties of public representation}}</ref> or with the [[semi-presidential]] system, based on the government of [[France]].

The Westminster system is used, or was once used, in the national and [[Administrative division|subnational]] legislatures of most [[List of former European colonies|former colonies]] of the [[British Empire]], upon gaining [[self-governing colony|self-government]] (with the exception of the [[Politics of the United States|United States]] and [[Politics of Cyprus|Cyprus]]),<ref>{{cite book|editor1-last=Arjomand|editor1-first=Saïd Amir|title=Constitutionalism and political reconstruction|date=2007|publisher=Brill|isbn=978-9004151741|pages=92–94|chapter-url=https://books.google.com/books?id=kYmmnYKEvE0C&pg=PA94|author1=Julian Go|chapter=A Globalizing Constitutionalism?, Views from the Postcolony, 1945–2000}}</ref><ref>{{cite web|title=How the Westminster Parliamentary System was exported around the World|url=http://www.cam.ac.uk/research/features/how-the-westminster-parliamentary-system-was-exported-around-the-world|publisher=University of Cambridge|access-date=16 December 2013|date=2 December 2013}}</ref> beginning with the first of the [[Canada under British Imperial control (1764-1867)#Act of Union (1840)|Canadian provinces]] in 1848 and the six [[History of Australia#Colonial self-government and the gold rushes|Australian colonies]] between 1855 and 1890.<ref name=seidle03>{{cite book|last1=Seidle|first1=F. Leslie|last2=Docherty|first2=David C.|title=Reforming parliamentary democracy|date=2003|publisher=McGill-Queen's University Press|isbn=9780773525085|page=3|url=https://books.google.com/books?id=i6je60BF-3sC&pg=PA3}}</ref><ref>{{cite book|last1=Johnston|first1=Douglas M.|last2=Reisman|first2=W. Michael|title=The Historical Foundations of World Order|date=2008|publisher=Martinus Nijhoff Publishers|location=Leiden|isbn=978-9047423935|page=571|url=https://books.google.com/books?id=dVuwCQAAQBAJ&pg=PA571}}</ref><ref>{{cite book|last1=Fieldhouse|first1=David|last2=Madden|first2=Frederick|title=Settler self-government, 1840–1900 : the development of representative and |date=1990|publisher=Greenwood Press|location=New York|isbn=9780313273261|page=xxi|edition=1. publ.|url=https://books.google.com/books?id=nZHdAZDr-kYC&pg=PR21}}</ref> It is the form of government bequeathed to [[New Zealand]],<ref name=seidle03/> and former [[British Hong Kong]].<ref name="cooray19">{{cite book |last1=Cooray |first1=Anton |title=Constitutional Law in Hong Kong |date=2019 |publisher=Kluwer Law International B.V. |chapter-url=https://books.google.com/books?id=kmfIDwAAQBAJ&pg=PT89 |chapter=5: Customary Law, Unwritten Law, and General Principles of Law|isbn=9789403518213 }}</ref><ref name="yu15">{{cite book |last1=Yu |first1=Gu |title=Hong Kong's Legislature under China's Sovereignty: 1998–2013 |date=2015 |chapter=8: Conclusion|page=215|publisher=Hotei Publishing |isbn=9789004276284 |chapter-url=https://books.google.com/books?id=9TdzBwAAQBAJ&pg=PA215}}</ref> [[Israel]] adopted a largely Westminster-inspired [[Israeli system of government|system of government]] upon [[Israeli Declaration of Independence|declaring independence]] from the [[Mandatory Palestine|British Mandate of Palestine]]. However, some former colonies have since adopted either the [[presidential system]] ([[Nigeria]] for example) or a hybrid system (like [[South Africa]]) as their form of government.

==Characteristics==
The Westminster system of government may include some of the following features:<ref>{{Cite web|url=https://www.psc.nsw.gov.au/employmentportal/ethics-conduct/behaving-ethically/behaving-ethically-guide/section-1/the-westminster-system|title=The Westminster System – Public Service Commission|website=www.psc.nsw.gov.au|language=en|access-date=22 August 2017}}</ref>

* A [[sovereignty|sovereign]] or [[head of state]] who functions as the nominal or legal and constitutional holder of executive power, and holds numerous [[reserve power]]s, but whose daily duties mainly consist of performing ceremonial functions. Examples include King [[Charles III]], the [[Governor-general|governors-general]] in the [[Commonwealth realms]], or the presidents of many countries, and [[State (country subdivision)|state or provincial]] [[governor]]s in [[Federalism|federal systems]]. Exceptions to this are [[President of Ireland|Ireland]] and [[President of Israel|Israel]], whose presidents are de jure and de facto ceremonial, and the [[President of Israel|latter]] possesses no reserve powers whatsoever.
* A [[head of government]] (or head of the executive), known as the [[prime minister]] (PM), [[premier]], [[chief minister]] or [[first minister]]. While the head of state appoints the head of government, constitutional convention suggests that a majority of elected members of parliament must support the person appointed.<ref name="oba">{{cite web|url=http://www.oba.org/En/ccl_en/newsletter_en/v13n1.aspx#Article_3|title=OBA.org – Articles|website=www.oba.org}}</ref> If more than half of elected parliamentarians belong to the same political party, then the parliamentary [[leader]] of that party typically is appointed.<ref name=oba/>
* An [[Executive (government)|executive branch]] led by the head of government usually made up of members of the legislature with the senior members of the executive in a [[Cabinet (government)|cabinet]] adhering to the principle of [[cabinet collective responsibility]]; such members execute executive authority on behalf of the nominal or theoretical executive authority.
* An independent, non-partisan [[civil service]] that advises on, and implements, decisions of the elected government. Civil servants hold permanent appointments and can expect merit-based selection processes and continuity of employment when governments change.<ref name=apsc>{{cite web|url=http://www.apsc.gov.au/publications-and-media/current-publications/reinvigorating-the-westminster-tradition|title=Reinvigorating The Westminster Tradition|access-date=28 February 2013|archive-url=https://web.archive.org/web/20130327121023/http://www.apsc.gov.au/publications-and-media/current-publications/reinvigorating-the-westminster-tradition|archive-date=27 March 2013|url-status=dead}}</ref>
* A [[Opposition (parliamentary)|parliamentary opposition]] (in a [[multi-party system]]) with an official [[leader of the opposition]], which generally takes on an adversarial role,<ref>{{cite web |title= The Role of the Opposition|url=https://academic.oup.com/book/8812/chapter-abstract/154988816?redirectedFrom=fulltext |website=academic.oup.com |access-date=18 October 2023}}</ref> presenting arguments against the government's policies. In certain countries, the [[leader of the opposition]] is expected to be ready to form a government if the office of head of government becomes vacant.
* A legislature, often [[Bicameralism|bicameral]], with at least one elected house—although [[Unicameralism|unicameral]] systems also exist. Traditionally, the lower house is elected using [[first-past-the-post]] from single-member districts, which is still more common, although some use a system of [[proportional representation]] (e.g. [[Politics of Israel|Israel]], [[Politics of New Zealand|New Zealand]], [[Politics of Denmark|Denmark]]), [[parallel voting]] (e.g. [[Politics of Japan|Japan]], [[Politics of Italy|Italy]]), or [[instant-runoff voting|preferential voting]] (e.g. [[Politics of Papua New Guinea|Papua New Guinea]], [[Politics of Australia|Australia]]).
* A [[lower house]] of parliament with an ability to dismiss a government by "[[Loss of supply|withholding (or blocking) supply]]" (rejecting a budget), passing a [[motion of no confidence]], or defeating a [[Motion of Confidence|confidence motion]].
* A parliament that can be [[dissolution of parliament|dissolved]] and [[snap election]]s called at any time.
* [[Parliamentary privilege]], which allows the legislature to discuss any issue it deems relevant without fear of consequences stemming from defamatory statements or records thereof.
* Minutes of meetings, often known as [[Hansard]], including an ability for the legislature to strike discussion from these minutes.
* The ability of courts to address silence or ambiguity in the [[statutory law]] through the development of [[common law]]. Another parallel system of legal principles also exists known as [[Equity (legal concept)|equity]]. Exceptions to this include India, Quebec in Canada, and Scotland in the UK, among other countries who mix common law with other legal systems.

Most of the procedures of the Westminster system originated with the [[Convention (norm)|conventions]], practices, and [[precedent]]s of the [[Parliament of the United Kingdom]], which form a part of what is known as the [[Constitution of the United Kingdom]]. Unlike the [[uncodified constitution|uncodified]] British constitution, most countries that use the Westminster system have [[Codification (law)|codified]] the system, at least in part, in a written [[constitution]].

However, uncodified conventions, practices, and precedents continue to play a significant role in most countries, as many constitutions do not specify important elements of procedure. For example, some older constitutions using the Westminster system do not mention the existence of the cabinet or the prime minister, because these offices were taken for granted by the authors of these constitutions. Sometimes these conventions, [[reserve powers]], and other influences collide in times of crisis and in such times the weaknesses of the unwritten aspects of the Westminster system, as well as the strengths of the Westminster system's flexibility, are put to the test. As an illustrative example, in the [[1975 Australian constitutional crisis|Australian constitutional crisis of 1975]], the Governor-General of Australia, [[Sir John Kerr]], dismissed Prime Minister [[Gough Whitlam]] and replaced him with opposition leader [[Malcolm Fraser]].

=== Summary of the typical structure of the Westminster model ===

{| class="wikitable"
|- 
! rowspan=2 | Type 
| rowspan=2 | Bicameral (unicameral in some circumstances) || Elected or appointed upper house to approve and/or scrutinise laws.

* Senate, Legislative Council, House of Lords
|-
| Elected lower house to represent the people and (normally) initiate legislation.

* House of Commons, House of Representatives, Legislative Assembly
|- 
! rowspan=4 | Leadership
| Head of state || Monarch (sometimes represented by a [[vice-regal]] representative, such as a governor or governor-general) or ceremonial president.
|- 
| Head of government ||
Usually the leader of the largest party in the lower house (legislature if unicameral).  

* Prime minister in a sovereign state/country 
* Premier/chief minister in provinces, states, or territories.  
* Other titles include first minister, chief executive, president of the council of ministers.
|-
| rowspan=2 | Presiding officers of legislative chambers || Speaker of the upper house
|-
| Speaker of the lower house
|- 
! rowspan=4 | General
| Government ||
Formed by the largest party/coalition in the lower house (legislature if unicameral), and led by the  head of government.

* Executive ministers are chosen (normally) from members of the government party or coalition, by the head of government.  They may be from either house in bicameral systems.
* A Cabinet is formed from the most senior ministers, but may include some civil servants.  
* In parliaments without political parties, ministers are either chosen by the prime minister or elected by members at large.
* Government sits in and is responsible to the legislature, to which it reports and is accountable (in particular, to the lower house, if bicameral).
|- 
| Opposition || Led by the leader of the opposition. A shadow cabinet is formed out of the elected members of the largest party or coalition in the legislature not in government, chosen by the party leader (the leader of the opposition).
|- 
| Public service || Politically independent and available to the people of the state, that will work for various government organisations (health, housing, education, defence).
|- 
| Armed forces || Defensive organisation of the state/country.
|}

==Operation==
The pattern of executive functions within a Westminster system is quite complex. In essence, the [[Head of State|head of state]], usually a [[monarch]] or president, is a ceremonial figurehead who is the theoretical, nominal or {{Lang|la|[[de jure]]}} source of executive power within the system. In practice, such a figure does not actively exercise executive powers, even though executive authority is nominally exercised in their name.

The [[head of government]], usually called the [[prime minister]] or [[premier]], will ideally have the support of a majority in the responsible house, and must, in any case, be able to ensure the existence of no [[Majority|absolute majority]] against the government. If the parliament passes a [[motion of no confidence]], or refuses to pass an important [[Bill (law)|bill]] such as the [[budget]], then the government must either resign so that a different government can be appointed or seek a [[dissolution of parliament|parliamentary dissolution]] so that new general elections may be held in order to re-confirm or deny the government's mandate.

Executive authority within a Westminster system is de jure exercised by the cabinet as a whole, along with more junior [[minister (government)|minister]]s, however, in effect, the head of government dominates the executive as the head of government is ultimately the person from whom the [[head of state]] will take [[Advice (constitutional)|advice]] (by constitutional convention) on the exercise of [[executive power]], including the appointment and dismissal of cabinet members. This results in the situation where individual cabinet members in effect serve at the pleasure of the prime minister. Thus the cabinet is strongly subordinate to the prime minister as they can be replaced at any time, or can be moved ("demoted") to a different portfolio in a [[cabinet reshuffle]] for "underperforming".

In the United Kingdom, the sovereign theoretically holds executive authority, even though the [[Prime Minister of the United Kingdom|prime minister]] and the [[Cabinet of the United Kingdom|cabinet]] effectively implement executive powers. In a [[parliamentary republic]] like India, the [[President of India|president]] is the {{Lang|la|de jure}} executive, even though executive powers are essentially instituted by the [[Prime Minister of India|prime minister]] and the [[Indian Cabinet Ministers|Council of Ministers]]. In [[Israel]], however, executive power is vested {{Lang|la|de jure}} and {{Lang|la|de facto}} in the cabinet and the [[President of Israel|president]] is {{Lang|la|de jure}} and {{Lang|la|de facto}} a ceremonial figurehead.

As an example, the prime minister and cabinet (as the ''[[de facto]]'' executive body in the system) generally must seek the permission of the head of state when carrying out executive functions. If, for instance the [[Prime Minister of the United Kingdom|British prime minister]] wished to [[dissolution of parliament|dissolve Parliament]] in order for a [[general election]] to take place, the prime minister is constitutionally bound to request permission from the [[British monarchy|sovereign]] in order to attain such a wish. However, the sovereign in modern times has virtually always followed the advice of their prime minister without their own agency, this owes to the fact that the British sovereign is a [[constitutional monarch]]; he or she abides by the advice of his or her ministers, except when executing [[reserve power]]s in times of crisis. The sovereign's power to appoint and dismiss governments, appoint cabinet [[Minister (government)|minister]]s to serve in the government, appoint [[diplomat]]s, declare [[war]], and to sign [[treaty|treaties]] (among other powers de jure held by the sovereign) is known as the [[royal prerogative]], which in modern times is exercised by the sovereign solely on the [[Advice (constitutional)|advice]] of the Prime Minister.

This custom also occurs in other countries are regions around the world using the Westminster System, as a legacy of [[British colonial rule]]. In [[Commonwealth realm]]s such as Canada, Australia and New Zealand, the day-to-day functions that would be exercised by the sovereign personally in the United Kingdom are instead exercised by the [[governor-general]]. In such nations, the prime minister is obligated to formally seek permission from the [[governor-general]] when implementing executive decisions, in a manner similar to the British system.

An analogous scenario also exists in [[republics in the Commonwealth of Nations]], such as [[India]] or [[Trinidad and Tobago]], where there is a president who functions similarly to a governor-general.

An unusual case lies in [[Prime Minister of Israel|Israel]] and [[Prime Minister of Japan|Japan]], where the respective prime ministers have the full legal power to implement executive decisions, and [[President of Israel|presidential (in Israel)]] or [[Emperor of Japan|imperial (in Japan)]] approval is not required; the prime ministers of these nations are fully the ''de jure'' source of executive authority, and not the head of state.

The head of state will often hold meetings with the head of government and cabinet, as a means of keeping abreast of governmental policy and as a means of advising, consulting and warning ministers in their actions. Such a practice takes place in the United Kingdom and India. In the UK, the sovereign holds confidential weekly meetings with the prime minister to discuss governmental policy and to offer his or her opinions and advice on issues of the day. In India, the prime minister is constitutionally bound to hold regular sessions with the president, in a similar manner to the aforementioned British practice. In essence, the head of state, as the theoretical executive authority, "reigns but does not rule". This phrase means that the head of state's role in government is generally ceremonial and as a result does not directly institute executive powers. The [[reserve powers]] of the head of state are sufficient to ensure compliance with some of their wishes. However, the extent of such powers varies from one country to another and is often a matter of controversy.

Such an executive arrangement first emerged in the United Kingdom. Historically, the [[British Sovereign|British sovereign]] held and directly exercised all executive authority. [[George I of Great Britain]] (reigned 1714 to 1727) was the first British monarch to delegate some executive powers to a prime minister and a cabinet of the ministers,{{Citation needed|date=October 2009}} largely because he was also the monarch of [[Hanover]] in Germany and did not speak English fluently. Over time, further arrangements continued to allow the execution of executive authority on the sovereign's behalf and more and more de facto power ended up lying in the [[Prime Minister of the United Kingdom|Prime Minister's]] hands. Such a concept was reinforced in ''[[The English Constitution]]'' (1876) by [[Walter Bagehot]], who distinguished between the separate "dignified" and "efficient" functions of government. The sovereign should be a focal point for the [[nation]] ("dignified"), while the PM and cabinet actually undertook executive decisions ("efficient").<ref name="Bagehot-1867">{{cite book |last1=Bagehot |first1=Walter |title=The English Constitution |date=1876 |publisher=Chapman & Hall |location=London |edition=1st}}</ref>

== Electoral system, ministers and officials ==
The [[electoral system]] is often set out in a [[Representation of the People Act]].<ref>Alder and Syrett. Constitutional and Administrative Law. (Palgrave Law Masters). 11th Edition. 2017. [https://books.google.com/books?id=M9s1DwAAQBAJ&pg=PA294 p 294]. Birch. The British System of Government. 10th Edition. Routledge. 1998. Taylor & Francis e-Library. 2006. [https://books.google.com/books?id=41Cyb3HrkqYC&pg=PA17 p 17].</ref><ref>See, for example, the definition in [https://books.google.com/books?id=4jJHAQAAMAAJ&pg=PA7 section 8(1)] of the [[Representation of the People Act 1884]], read with the definition of the Registration Acts in section 8(2)</ref> Common ministerial titles include [[parliamentary secretary]] and [[Undersecretary|under-secretary]]. Ministers are supported by [[Private secretary|private secretaries]] and government departments are run by [[Permanent secretary|permanent secretaries]], [[Principal Secretary (disambiguation)|principal secretaries]] or [[Chief Secretary (disambiguation)|chief secretaries]].

==Role of the head of state==
The [[Head of State|head of state]] or their representative (such as a [[governor-general]]) formally appoints as the [[head of government]] whoever commands the [[Confidence and supply|confidence]] of the [[Lower house|lower]] or [[Unicameralism|sole house]] of the legislature and invites him or her to form a government. In the UK, this is known as [[kissing hands]]. Although the dissolution of the legislature and the call for new elections is formally performed by the head of state, the head of state, by convention, acts according to the wishes of the head of government.

A president, monarch, or governor-general might possess clearly significant [[reserve power]]s. Examples of the use of such powers include the [[Australian constitutional crisis of 1975]] and the Canadian [[King–Byng affair]] in 1926. The [[Lascelles Principles]] were an attempt to create a convention to cover similar situations, but have not been tested in practice. Because of differences in their written constitutions, the formal powers of monarchs, governors-general, and presidents vary greatly from one country to another. However, as sovereigns and governors-general are not elected, and some presidents may not be directly elected by the people, they are often shielded from any public disapproval stemming from unilateral or controversial use of their powers.

In many [[Commonwealth realms]] a governor-general formally represents the monarch, who is usually absent from the realm. In such countries, the identity of the "head of state" may be unclear.<ref>{{Cite journal|last=Ireland |first=Ian |title=Who is the Australian Head of State? |journal=Research Note |issue=1 |page=1 |publisher=Dept. of the Parliamentary Library |location=Canberra |date=28 August 1995 |url=http://www.aph.gov.au/library/pubs/rn/1995-96/96rn01.pdf |issn=1323-5664 |access-date=22 January 2011 |archive-url=https://web.archive.org/web/20110117075757/http://www.aph.gov.au/library/pubs/rn/1995-96/96rn01.pdf |archive-date=17 January 2011 |url-status=dead }}
</ref>

==Cabinet government==
{{main|Cabinet collective responsibility}}
In the book ''[[The English Constitution]]'', [[Walter Bagehot]] emphasised the divide of the constitution into two components, the Dignified (that part which is symbolic) and the Efficient (the way things actually work and get done), and called the Efficient "[[Cabinet Government]]".<ref name="Bagehot-1867" />

Members of the Cabinet are collectively seen as responsible for government policy, a policy termed [[cabinet collective responsibility]]. All Cabinet decisions are made by consensus, a vote is rarely taken in a Cabinet meeting. All ministers, whether senior and in the Cabinet, or junior ministers, must support the policy of the government publicly regardless of any private reservations. When a [[Cabinet reshuffle]] is imminent, a lot of time is taken up in the conversations of politicians and in the news media, speculating on who will, or will not, be moved in and out of the Cabinet by the Prime Minister, because the appointment of ministers to the Cabinet, and threat of dismissal from the Cabinet, is the single most powerful constitutional power which a Prime Minister has in the political control of the Government in the Westminster system.

The [[Official Opposition]] and other major political parties not in the Government, will mirror the governmental organisation with their own [[Shadow Cabinet]] made up of [[Shadow Minister]]s.

==Bicameral and unicameral parliaments==
[[File:Canadian Parliament at night.jpg|thumb|Canadian Parliament at night]]
[[File:Glimpses of the new Parliament Building, in New Delhi (2).jpg|thumb|right|The [[Parliament House (India)|Sansad Bhavan]] (Parliament House) building in [[New Delhi, India]]]] 
[[File:Knesset Building (South Side).JPG|thumb|right|[[Knesset|Knesset Building]], [[Jerusalem]]]]

In a Westminster system, some members of parliament are elected by popular vote, while others are appointed. Nearly all Westminster-based parliaments have a [[lower house]] with powers based on those of the [[British House of Commons|House of Commons]] (under various names), comprising local, elected representatives of the people (with [[Knesset|the only exception]] being elected entirely by nationwide Proportional Representation). Most also have a smaller upper house, which is made up of members chosen by various methods:
* Termless appointees, either lifetime or retiring, from successive prime ministers (such as the [[Senate of Canada]])
* Appointees of the premier and the opposition leader (such as the [[Jamaican Senate]])
* Direct election (such as the [[Australian Senate]])
* Election by electoral colleges or sub-national legislatures (such as the Indian [[Rajya Sabha]])
* Hereditary nobility (such as the British [[House of Lords]] until the [[House of Lords Act 1999]])
* Any combination of the above (such as the Malaysian [[Dewan Negara|Senate]])

In the UK, the lower house is the {{Lang|la|de facto}} legislative body, while the upper house practices restraint in exercising its constitutional powers and serves as a consultative body. In other Westminster countries, however, the upper house can sometimes exercise considerable power, as is the case for the Australian Senate.

Some Westminster-derived parliaments are [[unicameral]] for two reasons:

* The [[New Zealand Parliament]], [[Parliament of Queensland]], and the parliaments of the Canadian provinces of [[Legislative Council of Manitoba|Manitoba]], [[New Brunswick Legislative Council|New Brunswick]], [[Legislative Council of Nova Scotia|Nova Scotia]], [[Legislative Council of Prince Edward Island|Prince Edward Island]], and [[Québec|Quebec]] have abolished their upper houses.<ref>{{Cite web|url=http://www.aph.gov.au/sitecore/content/Home/About_Parliament/Senate/Powers_practice_n_procedures/hamer/chap02|title=Chapter 2: The development of the Westminster system|author=<!--Not stated-->|website=Parliament of Australia |language=en-AU|access-date=22 August 2017}}</ref>
* The parliaments of all other Canadian provinces, the [[Parliament of Malta]], the [[National Parliament of Papua New Guinea|Papua New Guinea Parliament]], the [[Legislative Council of Hong Kong]] and the [[Knesset|Israeli Parliament]] never had upper houses.

[[Hong Kong]], a former British [[crown colony]] and currently a [[Special administrative regions of China|special administrative region]] of the [[China|People's Republic of China]], has a unicameral [[Legislative Council of Hong Kong|Legislative Council]]. While the Legislative Councils in British Australasian and North American colonies were unelected upper houses and some of them had since abolished themselves, the Legislative Council of Hong Kong has remained the sole chamber and had in 1995 evolved into a fully elected house, yet only part of the seats are returned by universal suffrage. Responsible government was never granted during British colonial rule, and the [[Governor of Hong Kong|Governor]] remained the [[head of government]] until the transfer of sovereignty in 1997, when the role was replaced by the [[Chief Executive (Hong Kong)|Chief Executive]]. Secretaries had remained to be chosen by the Chief Executive not from the Legislative Council, and their appointments need not be approved by the Legislative Council. Although essentially more presidential than parliamentary, the Legislative Council had inherited many elements of the Westminster system, including parliamentary powers, privileges and immunity, and the right to conduct inquiries, amongst others. Minutes are known as Hansards, and the theme colour of the meeting chamber is red as in other upper houses. Government secretaries and other officials are seated on the right hand side of the [[President of the Legislative Council of Hong Kong|President]] in the chamber. The Chief Executive may dissolve the Legislative Council under certain conditions, and is obliged to resign, e.g., when a re-elected Legislative Council passes again a bill that he or she had refused to sign.

== "Washminster system" ==
[[File:Australian Senate - Parliament of Australia.jpg|thumb|The [[Australian Senate]]|alt=]]
{{blockquote|text=The waters of the [[River Thames|Thames]] and of the [[Potomac River|Potomac]] both flow into [[Lake Burley Griffin]].|author=[[James Killen]]|source=[https://www.youtube.com/watch?v=flzQwp8_y7g&t=637s Farewell Parliament House - Sunday May 8, 1988]}}
[[Australian constitutional law]] is, in many respects, a unique hybrid with influences from the [[United States Constitution]] as well as from the traditions and conventions of the Westminster system and some indigenous features. Australia is exceptional because the government faces a fully elected upper house, the [[Australian Senate|Senate]], which must be willing to pass all its legislation. Although government is formed in the lower house, the House of Representatives, the support of the Senate is necessary in order to govern.<ref>{{Cite book |last=Aroney |first=Nicholas |url=https://www.cambridge.org/core/books/constitution-of-a-federal-commonwealth/E685089E543B0D14B22136FD7FEA922D#fndtn-information |title=The constitution of a federal commonwealth : the making and meaning of the Australian constitution |date=2009 |publisher=Cambridge University Press |isbn=978-1-139-12968-8 |location=Cambridge, UK |oclc=774393122}}</ref><ref>{{cite book |last1=Williams |first1=George |title=Blackshield and Williams Australian Constitutional Law and Theory |last2=Brennan |first2=Sean |last3=Lynch |first3=Andrew |publisher=Federation Press |year=2014 |isbn=978-1-86287-918-8 |edition=6 |location=Leichhardt, NSW |pages=77–88}}</ref><ref>{{Cite news |last1=Aroney |first1=Nicholas |last2=Kincaid |first2=John |title=Analysis {{!}} Comparing Australian and American federal jurisprudence |language=en-US |newspaper=Washington Post |url=https://www.washingtonpost.com/news/volokh-conspiracy/wp/2017/05/12/comparing-australian-and-american-federal-jurisprudence/ |access-date=2020-11-04 |issn=0190-8286}}</ref><ref>James A. Thomson, [https://repository.jmls.edu/cgi/viewcontent.cgi?article=1673&context=lawreview American and Australian Constitutions: Continuing Adventures in Comparative Constitutional Law], 30 J. Marshall L. Rev. 627 (1997)</ref><ref>Zelman Cowan, [https://digitalcommons.law.buffalo.edu/buffalolawreview/vol4/iss2/2 A Comparison of the Constitutions of Australia and the United States], 4 Buff. L. Rev. 155 (1955).</ref><ref>{{Cite web |last=Evans |first=Harry |date=December 2009 |title=The Other Metropolis: The Australian Founders' Knowledge of America |url=https://www.aph.gov.au/About_Parliament/Senate/Powers_practice_n_procedures/pops/~/link.aspx?_id=62157B3AE2F04D79A23615AA882A326B&_z=z |access-date=2020-11-04 |website=Papers on Parliament No. 52 |language=en-AU}}</ref>

The Australian Senate is unusual in that it maintains an ability to [[loss of supply|withhold supply]] from the government of the day – a power similar to that held in the UK [[Parliament Act 1911|until 1911 by the House of Lords]], which has since then been impossible, in the Westminster system. A government that has lost supply is severely restricted in its abilities to act; unless a solution can be negotiated and supply can be restored, such an occurrence would normally trigger a federal election. Since the [[Governor-General of Australia|governor-general]], technically speaking, can dismiss a federal government at any time, loss of supply is sometimes, controversially, considered a suitable trigger for a dismissal (such as with the [[1975 Australian constitutional crisis]]). This is controversial because it conflicts with the Westminster tradition of government by a party with the confidence of the lower house (not an upper house like the Senate). Some political scientists have held that the [[Politics of Australia|Australian system of government]] was consciously devised as a blend or hybrid of the Westminster and the [[Federal Government of the United States|United States systems of government]], especially since the Australian Senate is a powerful upper house like the US Senate; this notion is expressed in the nickname "the Washminster mutation".<ref>{{cite journal |last1=Thompson |first1=Elaine | journal = Politics|title=The 'Washminster' mutation |date=1980 |volume=15 |issue=2 |pages=32–40 |doi=10.1080/00323268008401755}}</ref> The ability of upper houses to block supply also features in the [[Parliaments of the Australian states and territories|parliaments of most Australian states]].

The Australian system has also been referred to as a [[semi-parliamentary system]].<ref name=Ganghof>{{cite journal |last1=Ganghof |first1=S|title=A new political system model: Semi-parliamentary government |journal=European Journal of Political Research |date=May 2018 |volume=57 |issue=2 |pages=261–281 |doi=10.1111/1475-6765.12224 |doi-access=free }}</ref>

==Ceremonies==
The Westminster system has a very distinct appearance when functioning, with many British customs incorporated into day-to-day government function. A Westminster-style parliament is usually a long, rectangular room, with two rows of seats and desks on either side. Many chambers connect the opposing rows, either with a perpendicular row of seats and desks at the furthermost point from the Speaker's Chair at the opposite end of the chamber (e.g. UK House of Lords or Israel Knesset) or the rows of chairs and desks are rounded at the end, opposite to the Speaker's Chair (e.g. Australian chambers, Ireland, South Africa, India). The chairs in which both the government and opposition sit, are positioned so that the two rows are facing each other. This arrangement is said to have derived from an early Parliament which was held in a [[Church (building)|church]] [[Choir (architecture)|choir]]. Traditionally, the opposition parties will sit in one row of seats, and the government party will sit in the other. In some countries, the mace will face the government’s side whilst lying on the table of the House. In most [[Majority government|majority governments]], the number of government-party MPs is so large that it must use the "opposition" seats as well. In the lower house at Westminster (the UK's House of Commons) there are lines on the floor in front of the government and opposition benches that members may cross only when exiting the chamber. 

At one end of the room sits a large chair, for the [[Speaker of the House of Commons (United Kingdom)|Speaker of the House]]. The speaker usually wears black robes, and in some countries, a [[Wig (hair)|wig]]. Robed parliamentary [[Clerk (legislature)|clerks]] often sit at narrow tables between the two rows of seats, as well. These narrow tables in the centre of the chamber, is usually where ministers or members of the house come to speak.

Other ceremonies sometimes associated with the Westminster system include an annual [[Speech from the Throne]] (or equivalent thereof) in which the head of state gives a special address (written by the government) to parliament about what kind of policies to expect in the coming year, and lengthy [[State Opening of Parliament]] ceremonies that often involve the presentation of a large [[ceremonial mace]]. Some legislatures retain Westminster's colour-coded chambers, with the upper houses associated with the colour red (after the House of Lords) and the lower with green (after the House of Commons). This is the case in India, Australia, Canada, New Zealand, and Barbados.

==Current countries==
Countries that use variations on the theme of the Westminster system, as of 2023, include the following:

{| class="wikitable sortable"
|-
!scope="col" |Country
!scope="col" |Legislature
!scope="col" |System of {{abbr|govt.|government}}
!scope="col" |Notes/Differences from the standard Westminster model
|-
| {{flagicon|Antigua and Barbuda}} [[Politics of Antigua and Barbuda|Antigua and Barbuda]]
| [[Parliament of Antigua and Barbuda|Parliament]]:<br />[[Senate (Antigua and Barbuda)|Senate]]<br />[[House of Representatives (Antigua and Barbuda)|House of Representatives]]
| [[Monarchy of Antigua and Barbuda|Monarchy]]
| 
|-
| {{flagicon|AUS}} [[Politics of Australia|Australia]]
| [[Parliament of Australia|Parliament]]:<br />[[Australian Senate|Senate]]<br />[[Australian House of Representatives|House of Representatives]]
| [[Monarchy of Australia|Monarchy]]
| [[Federation|Federated nation]], meaning that the power to govern the country and its people is shared and divided between national and state governments.<br/>Lower house is elected using [[instant-runoff voting]]. Upper house is elected by [[single transferable vote]] (a form of [[proportional representation]]) with each state and territory treated as individual electorates. [[Queensland]] has a unicameral [[Parliament of Queensland|state parliament]] while all other states have bicameral parliaments. The [[Australian Capital Territory Legislative Assembly|Australian Capital Territory]] and the [[Northern Territory Legislative Assembly|Northern Territory]] have unicameral legislatures.
|-
| {{flagicon|The Bahamas}} [[Politics of the Bahamas|The Bahamas]]
| [[Parliament of the Bahamas|Parliament]]:<br />[[Parliament of the Bahamas#Senate|Senate]]<br />[[Parliament of the Bahamas#House of Assembly|House of Assembly]]
| [[Monarchy of The Bahamas|Monarchy]]
|
|-
| {{flagicon|BAN}} [[Politics of Bangladesh|Bangladesh]]
| [[Jatiya Sangsad]]
| Republic
|
|-
| {{flagicon|BRB}} [[Politics of Barbados|Barbados]]
| [[Parliament of Barbados|Parliament]]:<br />[[Senate of Barbados|Senate]]<br />[[House of Assembly of Barbados|House of Assembly]]
| Republic
|
|-
| {{flagicon|BLZ}} [[Politics of Belize|Belize]]
| [[National Assembly (Belize)|National Assembly]]:<br />[[Senate (Belize)|Senate]]<br />[[House of Representatives (Belize)|House of Assembly]]
| [[Monarchy of Belize|Monarchy]]
|
|-
| {{flagicon|CAN}} [[Politics of Canada|Canada]]
| [[Parliament of Canada|Parliament]]:<br />[[Senate of Canada|Senate]]<br />[[House of Commons of Canada|House of Commons]]
| [[Monarchy of Canada|Monarchy]]
| [[Federation|Federated nation]], meaning that the power to govern the country and its people is shared and divided between national and provincial governments.<br/>Caucuses require [[official party status]] for some parliamentary privileges.<br/>Two of its territorial parliaments operate [[Consensus government in Canada|without any caucuses]] other than cabinet, and therefore have no leader of the opposition.
|-
| {{flagicon|CAY}} [[Politics of the Cayman Islands|Cayman Islands]]
| [[Parliament of the Cayman Islands|Parliament]]
| [[Monarchy of the United Kingdom|Monarchy]]
|[[British Overseas Territories|British Overseas Territory]], meaning ultimate authority for its government resides with the UK Parliament in Westminster
|-
|{{flagicon|DEN}} [[Denmark]]
|[[Folketing]]
|[[Monarchy of Denmark|Monarchy]]
|Essentially identical to the Westminster system in function, but developed independently, though with inspiration from the UK. [[Proportional representation]] is used to elect the [[Folketing]].
One of five countries other than the UK to use a Westminster system with [[Frederik X|a native monarch]], along with Japan, Lesotho, Malaysia, and Thailand.
|-
| {{flagicon|Dominica}} [[Politics of Dominica|Dominica]]
| [[House of Assembly of Dominica|House of Assembly]]
| Republic
|
|-
| {{flagicon|Fiji}} [[Politics of Fiji|Fiji]]
| [[Parliament of Fiji|Parliament]]
| Republic
|
|-
| {{flagicon|GRN}} [[Politics of Grenada|Grenada]]
| [[Parliament of Grenada|Parliament]]:<br />[[Parliament of Grenada#Senate|Senate]]<br />[[Parliament of Grenada#House of Representatives|House of Representatives]]
| [[Monarchy of Grenada|Monarchy]]
|
|-
| {{flagicon|IND}} [[Politics of India|India]]
| [[Parliament of India|Parliament]]:<br />[[Rajya Sabha]]<br />[[Lok Sabha]]
| Republic
|[[Federation|Federated nation]], meaning that the power to govern the country and its people is shared and divided between national and state governments. The [[Lok Sabha]] (lower house) is popularly elected via first past the post. The [[Rajya Sabha]] (upper house) is mostly elected by the members of state/union territory legislatures using [[single transferable vote]] with a handful of members being appointed by the [[President of India]].
|-
| {{flagicon|IRL}} [[Politics of the Republic of Ireland|Ireland]]
| [[Oireachtas]]:<br />[[Seanad Éireann]]<br />[[Dáil Éireann]]
| Republic
| Dáil Éireann (the lower house) is elected by universal suffrage by single transferable vote from constituencies of 3 to 5 members. [[President of Ireland|President]] is directly elected using instant-runoff voting. The Head of government has the title of [[Taoiseach]] (in the [[Irish language]] meaning roughly "captain" or "leader") and is appointed by the president on the nomination of the Dáil.
|-
| {{flagicon|ITA}} [[Politics of Italy|Italy]]
| [[Italian Parliament]]:<br />[[Senate of the Republic (Italy)|Senate of the Republic]]<br />[[Chamber of Deputies (Italy)|Chamber of Deputies]]
| Republic
| Very similar to the Westminster system but developed independently, though with inspiration from the UK. Notably, the [[Italian Parliament]] employs [[Perfect bicameral system|perfect bicameralism]], with the [[Senate of the Republic (Italy)|Senate of the Republic]] and [[Chamber of Deputies (Italy)|Chamber of Deputies]] exercising identical powers; thus, a government must maintain majorities in both. The Chamber of Deputies and most of the Senate are directly elected through [[parallel voting]]. Five people appointed by the [[President of Italy]], as well as previous Presidents of Italy, serve as [[Senators for life in Italy|senators for life]].
|-
| {{flagicon|ISR}} [[Politics of Israel|Israel]]
| [[Knesset]]
| Republic
| Modified Westminster system: Powers which would have been exercised by the [[President of Israel]] are divided between the [[Prime Minister of Israel|Prime Minister]], the Cabinet, and the speaker of the legislature.<br/>The Prime Minister was directly elected from 1996 to 2001.<ref>{{cite journal |last1=Arian |first1=Asher |last2=Shamir |first2=Michal |title=A Decade Later, the World Had Changed, the Cleavage Structure Remained |journal=Party Politics |date=November 2008 |volume=14 |issue=6 |pages=685–705 |doi=10.1177/1354068808093406|s2cid=144231226 }}</ref> [[Closed list]] [[party-list proportional representation]] is used to elect members to the Knesset.
|-
| {{flagicon|Japan}} [[Politics of Japan|Japan]]
| [[National Diet]]:<br />[[House of Councillors (Japan)|House of Councillors]]<br />[[House of Representatives (Japan)|House of Representatives]]
| [[Emperor of Japan|Monarchy]]
| Modified Westminster system: many non-[[reserve powers]] which would have been exercised by the [[Emperor of Japan]] on the advice of the [[Cabinet of Japan|Cabinet]] in an unmodified system are exercised directly by the [[Prime Minister of Japan|Prime Minister]], and Imperial [[reserve powers]] do not exist. Both houses of the [[National Diet]] are elected using [[parallel voting]].
One of five countries other than the UK to use a Westminster system with [[Naruhito|a native monarch]], along with Denmark, Lesotho, Malaysia, and Thailand.
|-
| {{flagicon|JAM}} [[Politics of Jamaica|Jamaica]]
| [[Parliament of Jamaica|Parliament]]:<br />Senate<br />House of Representatives
| [[Monarchy of Jamaica|Monarchy]]
|
|-
| {{flagicon|Lesotho}} [[Politics of Lesotho|Lesotho]]
| [[Parliament of Lesotho|Parliament]]:<br />[[Senate of Lesotho|Senate]]<br />[[National Assembly (Lesotho)|National Assembly]]
| [[List of monarchs of Lesotho|Monarchy]]
| Constitutional monarchy that operates under a Westminster system.
One of five countries other than the UK to use a Westminster system with [[Letsie III|a native monarch]], along with Denmark, Japan, Malaysia, and Thailand.
|-
| {{flagicon|MAS}} [[Politics of Malaysia|Malaysia]]
| [[Parliament of Malaysia|Parliament]]:<br />[[Dewan Negara]]<br />[[Dewan Rakyat]]
| [[Monarchies of Malaysia|Monarchy (elective)]]
| [[Federation|Federated nation]], meaning that the power to govern the country and its people is shared and divided between national and state governments.<br/>The Yang-di-Pertuan Agong shares characteristics of heads of state in both monarchies and republics.
|-
| {{flagicon|MLT}} [[Politics of Malta|Malta]]
| [[Parliament of Malta|Parliament]]
| Republic
|
|-
| {{flagicon|MRI}} [[Politics of Mauritius|Mauritius]]
| [[National Assembly (Mauritius)|National Assembly]]
| Republic
|
|-
| {{flagicon|NEP}} [[Politics of Nepal|Nepal]]
| [[Federal Parliament of Nepal|Parliament]]:<br />[[National Assembly (Nepal)|National Assembly]]<br />[[House of Representatives (Nepal)|House of Representatives]]
| Republic<ref>{{cite web |url=http://constitution.org.np/userfiles/constitution%20of%20nepal%202072-en.pdf |title=CONSTITUTION OF NEPAL 2015 |access-date=18 February 2016 |url-status=dead |archive-url=https://web.archive.org/web/20151223153410/http://constitution.org.np/userfiles/constitution%20of%20nepal%202072-en.pdf |archive-date=23 December 2015  }}</ref>
| [[Federation|Federated nation]], meaning that the power to govern the country and its people is shared and divided between national and state governments.
|-
| {{flagicon|NZL}} [[Politics of New Zealand|New Zealand]]
| [[New Zealand Parliament|Parliament]]
| [[Monarchy of New Zealand|Monarchy]]
| Uses [[mixed-member proportional representation]] to elect members to its unicameral Parliament. [[Maori electorates|Several seats]] in NZ Parliament are [[Reserved political positions|reserved]] for election by Indigenous [[Māori people|Māori]] voters.
|-
| {{flagicon|PAK}} [[Politics of Pakistan|Pakistan]]
| [[Parliament of Pakistan|Parliament]]:<br />[[Senate of Pakistan|Senate]]<br />[[National Assembly (Pakistan)|National Assembly]]
| Republic 
|[[Federation|Federated nation]], meaning that the power to govern the country and its people is shared and divided between national and provincial governments.
|-
| {{flagicon|PNG}} [[Politics of Papua New Guinea|Papua New Guinea]]
| [[National Parliament of Papua New Guinea|Parliament]]
| [[Monarchy of Papua New Guinea|Monarchy]]
| One significant deviation it has from the traditional Westminster model is that a person is nominated for the position of [[Governor-General of Papua New Guinea|Governor-General]] not by the [[Prime Minister of Papua New Guinea|Prime Minister]] but by a majority vote in Parliament, then they are appointed by the monarch. Members are elected to the Parliament by instant-runoff voting. 
|-
| {{flagicon|SKN}} [[Politics of Saint Kitts and Nevis|Saint Kitts and Nevis]]
| [[National Assembly (Saint Kitts and Nevis)|National Assembly]]
| [[Monarchy of Saint Kitts and Nevis|Monarchy]]
| [[Federation|Federated nation]], meaning that the power to govern the country and its people is shared and divided between national and subnational governments.
|-
| {{flagicon|Saint Lucia}} [[Politics of Saint Lucia|Saint Lucia]]
| [[Parliament of Saint Lucia|Parliament]]:<br />[[Senate of Saint Lucia|Senate]]<br />[[House of Assembly of Saint Lucia|House of Assembly]]
| [[Monarchy of Saint Lucia|Monarchy]]
|
|-
| {{flagicon|Saint Vincent and the Grenadines}} [[Politics of Saint Vincent and the Grenadines|Saint Vincent and the Grenadines]]
| [[House of Assembly of Saint Vincent and the Grenadines|House of Assembly]]
| [[Monarchy of Saint Vincent and the Grenadines|Monarchy]]
|
|-
| {{flagicon|Samoa}} [[Politics of Samoa|Samoa]]
| [[Legislative Assembly of Samoa|Legislative Assembly]]
| Republic
|
|-
| {{flagicon|SIN}} [[Politics of Singapore|Singapore]]
| [[Parliament of Singapore|Parliament]]
| Republic
| [[President of Singapore|President]] is directly elected by [[first-past-the-post]] voting.
|-
| {{flagicon|Solomon Islands}} [[Politics of Solomon Islands|Solomon Islands]]
| [[National Parliament of Solomon Islands|Parliament of the Solomon Islands]]
| [[Monarchy of the Solomon Islands|Monarchy]]
| One significant deviation it has from the traditional Westminster model is that a person is nominated for the position of [[Governor-General of the Solomon Islands|Governor-General]] not by the [[Prime Minister of the Solomon Islands|Prime Minister]] but by a majority vote in Parliament, then they are appointed by the monarch, similar to neighboring Papua New Guinea.
|-
| {{flagicon|Thailand}} [[Politics of Thailand|Thailand]]
| [[National Assembly of Thailand|National Assembly]]:<br />[[Senate of Thailand|Senate]]<br />[[House of Representatives of Thailand|House of Representatives]]
| [[Monarchy of Thailand|Monarchy]]
|One of five countries other than the UK to use a Westminster system with [[Vajiralongkorn|a native monarch]], along with Denmark, Japan, Lesotho, and Malaysia.
|-
| {{flagicon|TRI}} [[Politics of Trinidad and Tobago|Trinidad and Tobago]]
| [[Parliament of Trinidad and Tobago|Parliament]]:<br />[[Senate (Trinidad and Tobago)|Senate]]<br />[[House of Representatives (Trinidad and Tobago)|House of Representatives]]
| Republic
|
|-
| {{flagicon|Tuvalu}} [[Politics of Tuvalu|Tuvalu]]
| [[Parliament of Tuvalu|Parliament]]
| [[Monarchy of Tuvalu|Monarchy]]
|
|-
| {{flagicon|UK}} [[Politics of the United Kingdom|United Kingdom]]
| [[Parliament of the United Kingdom|Parliament]]:<br />[[House of Lords]]<br />[[House of Commons of the United Kingdom|House of Commons]]
| [[Monarchy of the United Kingdom|Monarchy]]
|Between 2011 ([[Fixed-term Parliaments Act 2011]]) and 2022 ([[Dissolution and Calling of Parliament Act 2022]]), the Prime Minister did not have the ability to call early elections.
|-
| {{flagicon|Vanuatu}} [[Politics of Vanuatu|Vanuatu]]
| [[Parliament of Vanuatu|Parliament]]
| Republic
|
|}

==Former countries==
The Westminster system was adopted by a number of countries which subsequently evolved or reformed their system of government departing from the original model. In some cases, certain aspects of the Westminster system were retained or codified in their constitutions. For instance [[Government of South Africa|South Africa]] and [[Politics of Botswana|Botswana]], unlike Commonwealth realms or parliamentary republics such as India, have a combined head of state and head of government but the President remains responsible to the lower house of parliament; it elects the President at the beginning of a new Parliament, or when there is a vacancy in the office, or when the sitting President is defeated on a vote of confidence. If the Parliament cannot elect a new President within a short period of time (a week to a month) the lower house is dissolved and new elections are called.

* {{flag|Union of South Africa}} between 1910 and 1961, and the {{flag|Republic of South Africa|1928}} between 1961 and 1984. The 1983 constitution abolished the Westminster system in South Africa.
* {{flag|Dominion of Newfoundland}} between 1907 and 1934, the year self-government was suspended and the [[Newfoundland Commission of Government|Commission of Government]] assumed direct rule from London. Use of the Westminster system resumed in 1949 when [[Newfoundland and Labrador|Newfoundland]] became a [[Provinces and territories of Canada|province]] of [[Canada]].
* {{Flag|Rhodesia}} between 1965 and 1979, and {{Flag|Zimbabwe}} between 1980 and 1987. The 1987 constitution abolished the Westminster system.
* {{flag|Federation of Nigeria|name=Nigeria}} following the end of British colonial rule in 1960, which resulted in the appointment of a Governor-General and then a President, [[Nnamdi Azikiwe]]. The system ended with the [[1966 Nigerian coup d'état|military coup of 1966]].
* {{flag|Ceylon|1951}} between 1948 and 1972, and {{Flag|Sri Lanka}} from 1972 until 1978 when the constitution was remodelled into an Executive presidential system.
* {{flag|Union of Burma|name=Burma}} following independence in 1948 until the 1962 military coup d'état.
* {{flag|Dominion of Ghana|name=Ghana}} between 1957 and 1960, then 1969 and 1972.
* {{flagicon image|Flag of Somalia.svg}} [[State of Somaliland]] during its brief independence in 1960, with [[Muhammad Haji Ibrahim Egal]] as its first and only Prime Minister.
* {{flag|Eswatini}} (then known as Swaziland) between 1968 and 1973.
* {{flagcountry|Tanganyika (1961–1964)}} between 1961 and 1962.
* {{flag|Sierra Leone (1961–1971)|name=Sierra Leone}} between 1961 and 1971.
* {{flag|Uganda (1962–1963)|name=Uganda}} between 1962 and 1963.
* {{flag|Indonesia|name=Indonesia}} between 1945 and 1966.
* {{flag|Kenya (1963–1964)|name=Kenya}} between 1963 and 1964.
* {{flag|Malawi (1964–1966)|name=Malawi}} between 1964 and 1966.
* {{flag|The Gambia (1965–1970)|name=The Gambia}} between 1965 and 1970.
* {{flag|Guyana}} between 1966 and 1980.
* {{flag|Kingdom of Iraq}} between 1921 and 1958; during the monarchy, the Parliament of Iraq was a bicameral parliament made of an upper house of lords and a lower house of commons and was modelled after the Westminster system with some adjustments.
* {{flag|Kingdom of Egypt}} between 1923 and 1953; after the [[1919 Egyptian Revolution]] the Parliament of Egypt was made to follow the exact model of the Westminster system.
* {{flag|Kingdom of Afghanistan}} between 1964 and [[1973 Afghan coup d'état|the end of the monarchy in 1973]].
* {{flag|Empire of Japan}} between 1890 and 1940; under the [[Meiji Constitution]] the [[Diet of Japan]] was a bicameral legislature modelled after both the German ''[[Reichstag (German Empire)|Reichstag]]'' and the Westminster system.<ref>{{cite book|last1=Hein|first1=Patrick|title=How the Japanese became foreign to themselves : the impact of globalization on the private and public spheres in Japan|date=2009|publisher=Lit|location=Berlin|isbn=978-3643100856|page=72|url=https://books.google.com/books?id=5QJsvhHwjVMC&pg=PA72}}</ref> Influence from the Westminster system remained in Japan's [[Constitution of Japan|Postwar Constitution]].<ref>{{cite book|last1=Moore|first1=Ray A.; Robinson, Donald L.|title=Partners for democracy : crafting the new Japanese state under MacArthur|date=2004|publisher=Oxford University Press|isbn=978-0195171761|page=85|url=https://books.google.com/books?id=Ku1iq--PxN4C&pg=PA85}}</ref><ref>{{cite book|editor-last=Hook|editor-first=Glenn D.|title=Contested governance in Japan : sites and issues|date=2005|publisher=RoutledgeCurzon|location=London|isbn=978-0415364980|page=55|url=https://books.google.com/books?id=cSiOHT0xf8kC&pg=PA55}}</ref><ref>{{cite journal|title=Special Issue Constitutional Law in Japan and the United Kingdom|journal=King's Law Journal|date=2015|volume=2|issue=2|url=http://www.tandfonline.com/toc/rklj20/26/2}}</ref>

==See also==
* [[Bill of Rights 1689]]
* [[English Civil War]]
* [[Glorious Revolution]]
* [[His Majesty's Government (term)|His Majesty's Government]]
* [[History of parliamentarism]]

* [[History of the constitution of the United Kingdom#Worldwide influence|History of the constitution of the United Kingdom § Worldwide influence]]

* [[Loyal opposition]]
* [[Magna Carta]]
* [[Parliamentary system]] 
* [[Parliament in the Making]]
* [[Parliament of England]]
* [[Petition of Right]]
* [[Presidential system]]
*[[Representation of the People Act]]

==References==
{{reflist|30em}}

==Bibliography==
* {{cite book|last1=Rhodes|first1=R. A.W.|last2=Wanna|first2=John|last3=Weller|first3=Patrick|title=Comparing Westminster|date=2009|publisher=Oxford University Press|isbn=978-0191609817|url=https://books.google.com/books?id=8TP_MFqp0iwC}}
* {{cite book|editor1-last=Galligan|editor1-first=Brian|editor2-last=Brenton|editor2-first=Scott|title=Constitutional Conventions in Westminster Systems|date=2015|publisher=Cambridge University Press|isbn=978-1107100244|url=https://books.google.com/books?id=paQyCgAAQBAJ}}
* ''The English Constitution'', [[Walter Bagehot]], 1876. {{ISBN|0-521-46535-4}}. {{ISBN|0-521-46942-2}}.
* ''British Cabinet Government'', Simon James, Pub Routledge, 1999. {{ISBN|0-415-17977-7}}.
* ''Prime Minister & Cabinet Government'', Neil MacNaughton, 1999. {{ISBN|0-340-74759-5}}.
* ''[https://www.amazon.co.uk/Westminster-Legacies-Democracy-Responsible-Government/dp/0868408484 Westminster Legacies: Democracy and Responsible Government in Asia and the Pacific]'', Haig Patapan, John Wanna, Patrick Weller, 2005. {{ISBN|0-868-40848-4}}.

==External links==
* ''[http://www.cam.ac.uk/research/features/how-the-westminster-parliamentary-system-was-exported-around-the-world How the Westminster parliamentary system was exported around the world]'' University of Cambridge.
* ''[https://web.archive.org/web/20160304072715/http://parliamentary-democracy.athabascau.ca/chapters/index.html Module on Parliamentary Democracy]'' [[Commonwealth Parliamentary Association]].
* ''[https://web.archive.org/web/20050524173625/http://ksghome.harvard.edu/~pnorris/Acrobat/APSA%202000%20bpg%20Twilight.pdf The Twilight of Westminster? Electoral Reform & its Consequences]'', Pippa Norris, 2000.
* ''[https://web.archive.org/web/20160304120951/https://www.ucl.ac.uk/americas/caribbean-studies/Networks/westminster-in-the-caribbean Westminster in the Caribbean: History, Legacies, Challenges]'' University College London.
* ''[https://www.youtube.com/watch?v=svMxNNBNisQ What is the Westminster System?]'' Parliament of Victoria video.

{{DEFAULTSORT:Westminster System}}
[[Category:Westminster system| ]]
[[Category:Constitution of the United Kingdom]]
[[Category:Constitution of Canada]]
[[Category:Constitution of Australia]]
[[Category:Constitution of New Zealand]]
[[Category:Political systems]]
[[Category:Western culture]]