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Presiding officer of the House of Commons of Canada

The speaker of the House of Commons is the presiding officer of the lower house of the Parliament of Canada. A member of Parliament (MP), they are elected at the beginning of each new parliament by fellow MPs. The speaker's role in presiding over Canada's House of Commons is similar to that of speakers elsewhere in other countries that use the Westminster system. The 38th Speaker of the House of Commons is Greg Fergus, who assumed the role on October 3, 2023, following the resignation of the 37th speaker, Anthony Rota. He is the first person of colour to be elected speaker. The speaker with the longest tenure is Peter Milliken who was elected for four consecutive terms lasting 10 years, 124 days.

In Canada it is the speaker's responsibility to manage the House of Commons and supervise its staff. It is also the speaker's duty to act as a liaison with the Senate and the Crown. They are to rule over the house and have the government answer questions during the question period as well as keep decorum with the house. The speaker receives a salary of CA$274,500 ($185,800 as an MP in addition to $88,700 as speaker) and has use of a small apartment, in the House of Commons, and an official residence, The Farm, an estate located at Kingsmere in Gatineau Park, Quebec, across the river from Ottawa. The term "speaker" originates from the British parliamentary tradition. The French term now used in Canada is (president, chairperson, or presiding officer); the term , a calque (literal translation) of "speaker" and formerly the term used in France for the Speaker of the House of Commons of the United Kingdom, was used until the early 1980s. The speaker and their deputies preside over debates of the House of Commons, invite particular members to speak, maintain order and decorum (including reproving members who misbehave), and make rulings on points of order and points of privilege. By parliamentary rule and tradition, all statements in the House are addressed to the speaker, never to another member. For example, one does not say, "Prime Minister, will you explain to this House ", or "Thank you for the question." Instead, one would say, "Mr. Speaker, will the Prime Minister explain to this House " or "Madam Speaker, I thank the honourable member for her question." Members are not allowed to speak while the speaker is speaking, and must sit down when the speaker rises to speak. By convention, speakers are normally addressed in Parliament as "Mr. Speaker" (monsieur le président) for a man, and "Madam Speaker" (madame la présidente) for a woman; the speaker has also been addressed using the Inuktitut term ᐅᖃᖅᑎᑦᑎᔨ (Uqaqtittiji). Deputies of the speaker who are presiding at a given time are also addressed as "Mr./Madam Speaker."

Although the Constitution requires that the speaker be elected by the House of Commons, traditionally this amounted to the rubber stamp approval of an MP nominated by the prime minister. The winner is escorted to the speaker's chair by the prime minister and leader of the Official Opposition. The newly elected speaker, by tradition, feigns reluctance as they are "dragged" to the chair in a practice dating from the days when British speakers risked execution if the news they reported to the king was displeasing. On June 2, 2011, Conservative Andrew Scheer (Regina—Qu'Appelle) was elected speaker, defeating the following MPs over the course of six ballots: New Democrat Denise Savoie (Victoria) and Conservatives Dean Allison (Niagara West—Glanbrook), Barry Devolin (Haliburton—Kawartha Lakes—Brock), Ed Holder (London West), Lee Richardson (Calgary Centre), Bruce Stanton (Simcoe North), and Merv Tweed (Brandon—Souris). At the age of , Scheer was the youngest Speaker in Canadian history. On December 2, 2015, Liberal Geoff Regan was elected speaker by members of the 42nd Parliament over fellow Liberal candidates Denis Paradis, Yasmin Ratansi and Conservative Bruce Stanton. He was the first speaker from Atlantic Canada or Nova Scotia in nearly a hundred years since Edgar Nelson Rhodes in 1922. Anthony Rota was elected as 37th speaker on December 5, 2019, by winning a ranked ballot between himself, Joël Godin, Carol Hughes, Geoff Regan (the speaker during the previous Parliament), and Bruce Stanton. Following Rota's win, the Conservatives said that he had them to thank for his new election, after they decided in a Conservative caucus meeting to unseat Regan as a show of strength to the Liberal minority government that had obtained from the election that October 21. They did so by ranking Regan lower on the ranked ballot.

The speaker usually comes from among MPs of the governing party. But because they cannot vote unless their vote would break a tie and by convention must vote to maintain the status quo (which includes voting confidence in the government), a minority government can slightly weaken the opposition's power by electing an opposition speaker. Speakers have been elected from opposition parties during the 1926 tenure of Arthur Meighen's Conservative ministry, the 1979 ministry of Progressive Conservative Joe Clark, and Stephen Harper's Conservative Ministry from 2006 to 2011. In the 39th Parliament, opposition members Peter Milliken, Diane Marleau, and Marcel Proulx ran for speaker. In 1957, when John Diefenbaker took power with a minority Progressive Conservative government, he offered the speaker's chair to Stanley Knowles of the opposition Co operative Commonwealth Federation (the precursor to the New Democratic Party, or NDP) who declined. So far, every speaker from an opposition party has been a Liberal. Louis Plamondon, who became interim speaker on September 28, 2023 following the resignation of Anthony Rota and will serve until the election of a new speaker in early October, is a member of the Bloc Québécois.

The speaker is required to perform their office impartially, but does not resign from their party membership upon taking office, as is done in the United Kingdom. Speaker Lucien Lamoureux, the 27th holder, decided to follow the custom of the Speaker of the House of Commons of the United Kingdom and ran in the 1968 election as an independent. Both the Liberal Party and the Progressive Conservative Party agreed not to run candidates against him. The New Democratic Party, however, declined to withdraw their candidate. Lamoureux was re elected and continued to serve as speaker. However, in the 1972 election, the opposition parties did not come to an agreement and ran candidates against him. Lamoureux was again returned but no subsequent speakers have repeated his attempt to run as an independent. The opposition parties may have chosen not to follow the 1968 precedent because of how close the election was: it produced a Liberal minority government with just two more seats than the Conservatives.

On May 19, 2005, Speaker Peter Milliken was required to cast the tie breaking vote during a confidence measure for the first time in Canadian history. Faced with the defeat of Paul Martin's minority government, Milliken voted in favour of the NDP budget amendment. Despite popular belief that the speaker, as a Liberal MP, would automatically support the government, his vote was pre determined by other factors. As speaker, Milliken's vote must be cast to allow the continuation of debate, or to maintain the status quo, a reflection of Speaker Denison's rule practiced in the British House of Commons. Thus, the speaker voted in favour of second reading, "to allow the House time for further debate so that it can make its own decision at some future time." The bill would later pass third reading without the need for Milliken's vote. Speakers have only needed to vote in order to break a tie 11 times in Canadian parliamentary history. Milliken did so on five occasions, almost more than all previous speakers combined.

In addition to the speaker, a deputy speaker, also known as the Chair of Committees (of the whole), is elected at the beginning of each parliament to act in place of the speaker when the latter is unavailable. Under the Standing Orders, the speaker, after consulting with each of the party leaders, nominates a candidate for deputy speaker to the House, which then votes on that nomination. The deputy speaker presides over daily sessions of the House when the speaker is not in the chair. The deputy speaker also chairs the House when it sits as a Committee of the Whole. Other presiding officers, the deputy chair of committees and the assistant deputy chair of committees, are chosen each session to occupy the chair when the speaker and deputy speaker are not available. The deputy speaker and the other presiding officers are members of the Panel of Chairs, and can therefore be selected by the speaker to chair legislative committees. Like the speaker, the deputy speaker has a role in administering the House. The deputy speaker of the 44th Canadian Parliament was Chris d'Entremont (Conservative); and the assistant deputy speaker was Carol Hughes (NDP). The Chair of Committees is vested by Subsection 43(1) of the Parliament of Canada Act with full and adequate authority to address matters in the titular Speaker's absence: "Whenever the House of Commons is informed of the unavoidable absence of the Speaker thereof by the Clerk at the table, the Chairman of Committees, if present, shall take the chair and perform the duties and exercise the authority of Speaker in relation to all the proceedings of the House, as Deputy Speaker."

Most former speakers retire from Parliament after their tenure as speaker, sometimes after returning to the backbench for a period. Several have been appointed to diplomatic positions, summoned to the Senate, or appointed to a vice regal position such as lieutenant governor of a province or, in two cases, governor general of Canada (Roland Michener and Jeanne Sauvé). While several former Cabinet ministers have served as speaker or stood for the position, no former speakers have subsequently been appointed to Cabinet. One speaker, Andrew Scheer, has gone on to assume a front bench position in the House of Commons: Scheer became leader of the Conservative Party of Canada in 2017 and served as leader of the Opposition from 2017 to 2020.

The resignation of Speaker Anthony Rota on September 27, 2023, led to an unprecedented situation in which there was no Speaker while the House had several sitting days already planned. To give time for the election of a new Speaker to be organized, the House moved on September 27 to name Louis Plamondon of the Bloc Québécois as interim Speaker until the election. He was chosen as interim speaker by virtue of his status as Dean of the House, the longest serving MP who is not a cabinet member or party leader; the Dean of the House is in any event in charge of presiding over the election of a Speaker at the beginning of a new Parliament.

On March 9, 2016 Liberal MP Mauril Bélanger served as honorary speaker for about an hour to honour his years of service. Speaker Regan resumed his duties for the remainder of the sitting of the House. Mauril Bélanger had initially been considered a front runner for the post of Speaker the previous year, but had withdrawn due to his being diagnosed with amyotrophic lateral sclerosis. Bélanger died on August 15, 2016, five months after being named honorary speaker.