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The list of Quebec by-elections includes every by-election held in the Canadian province of Quebec since Confederation. By-elections occur whenever there is a vacancy in the National Assembly (known as the Legislative Assembly until 1968), although an imminent general election may allow the vacancy to remain until the dissolution of parliament.

A by-election occurs whenever there is a vacancy in the Quebec legislature. Vacancies can occur for the following reasons:

• Death of a member.
• Resignation of a member.
• Voided results
• Expulsion from the legislature.
• Ineligibility to sit.
• Appointment to the Legislative Council, Quebec's appointed upper house, which was abolished in 1968.
• Appointment to the cabinet. Until 1927 incumbent members recontested their seats upon being appointed to Cabinet. These Ministerial by-elections were almost always uncontested.

By-election	Date	Incumbent	Party		Winner	Party		Cause	Retained
Terrebonne	TBA	Pierre Fitzgibbon		Coalition Avenir Québec	TBD		TBD	Resignation	TBD
Jean-Talon	October 2, 2023	Joëlle Boutin		Coalition Avenir Québec	Pascal Paradis		Parti Québécois	Resignation	No
Saint-Henri—Sainte-Anne	March 13, 2023	Dominique Anglade		Liberal	Guillaume Cliche-Rivard		Québec solidaire	Resigned as Liberal leader and MNA.	No

By-election	Date	Incumbent	Party		Winner	Party		Cause	Retained
Marie-Victorin	April 11, 2022	Catherine Fournier		Parti Québécois	Shirley Dorismond		Coalition Avenir Québec	Resigned to run for Mayor of Longueuil; elected.	No
Jean-Talon	December 2, 2019	Sébastien Proulx		Liberal	Joëlle Boutin		Coalition Avenir Québec	Resignation	No
Roberval	December 10, 2018	Philippe Couillard		Liberal	Nancy Guillemette		Coalition Avenir Québec	Resignation	No

By-election	Date	Incumbent	Party		Winner	Party		Cause	Retained
Louis-Hebert	October 2, 2017	Sam Hamad		Liberal	Geneviève Guilbault		Coalition Avenir Québec	Resignation	No
Gouin	May 29, 2017	Françoise David		Québec solidaire	Gabriel Nadeau-Dubois		Québec solidaire	Resignation	Yes
Arthabaska	December 5, 2016	Sylvie Roy		Coalition Avenir Québec	Éric Lefebvre		Coalition Avenir Québec	Death	Yes
Marie-Victorin	December 5, 2016	Bernard Drainville		Parti Québécois	Catherine Fournier		Parti Québécois	Resignation	Yes
Saint-Jérôme	December 5, 2016	Pierre Karl Péladeau		Parti Québécois	Marc Bourcier		Parti Québécois	Resignation	Yes
Verdun	December 5, 2016	Jacques Daoust		Liberal	Isabelle Melançon		Liberal	Resignation	Yes
Chicoutimi	April 11, 2016	Stéphane Bédard		Parti Québécois	Mireille Jean		Parti Québécois	Resignation	Yes
Beauce-Sud	November 9, 2015	Robert Dutil		Liberal	Paul Busque		Liberal	Resignation	Yes
Fabre	November 9, 2015	Gilles Ouimet		Liberal	Monique Sauvé		Liberal	Resignation	Yes
René-Lévesque	November 9, 2015	Marjolain Dufour		Parti Québécois	Martin Ouellet		Parti Québécois	Resignation	Yes
Saint-Henri–Sainte-Anne	November 9, 2015	Marguerite Blais		Liberal	Dominique Anglade		Liberal	Resignation	Yes
Chauveau	June 8, 2015	Gérard Deltell		Coalition Avenir Québec	Véronyque Tremblay		Liberal	Resignation to contest the 2015 federal election	No
Jean-Talon	June 8, 2015	Yves Bolduc		Liberal	Sébastien Proulx		Liberal	Resignation	Yes
Richelieu	March 9, 2015	Élaine Zakaïb		Parti Québécois	Sylvain Rochon		Parti Québécois	Resignation	Yes
Lévis	October 20, 2014	Christian Dubé		Coalition Avenir Québec	François Paradis		Coalition Avenir Québec	Resignation	Yes

By-election	Date	Incumbent	Party		Winner	Party		Cause	Retained
Viau	December 9, 2013	Emmanuel Dubourg		Liberal	David Heurtel		Liberal	Resignation to contest a federal by-election	Yes
Outremont	December 9, 2013	Raymond Bachand		Liberal	Philippe Couillard		Liberal	Resignation after losing leadership convention to Couillard.	Yes

By-election	Date	Incumbent	Party		Winner	Party		Cause	Retained
LaFontaine	June 11, 2012	Tony Tomassi		Independent*	Marc Tanguay		Liberal	Resignation	Yes/No
Argenteuil	June 11, 2012	David Whissell		Liberal	Roland Richer		Parti Québécois	Resignation	No
Bonaventure	December 5, 2011	Nathalie Normandeau		Liberal	Damien Arsenault		Liberal	Resignation	Yes
Kamouraska-Témiscouata	November 29, 2010	Claude Béchard		Liberal	André Simard		Parti Québécois	Resignation	No
Saint-Laurent	September 13, 2010	Jacques Dupuis		Liberal	Jean-Marc Fournier		Liberal	Resignation	Yes
Vachon	July 5, 2010	Camil Bouchard		Parti Québécois	Martine Ouellet		Parti Québécois	Resignation	Yes
Rousseau	September 21, 2009	François Legault		Parti Québécois	Nicolas Marceau		Parti Québécois	Resignation	Yes
Rivière-du-Loup	June 22, 2009	Mario Dumont		ADQ	Jean D'Amour		Liberal	Resignation	No
Marguerite-Bourgeoys	June 22, 2009	Monique Jérôme-Forget		Liberal	Clément Gignac		Liberal	Resignation	Yes

* Tomassi was a former Liberal

By-election	Date	Incumbent	Party		Winner	Party		Cause	Retained
Jean-Talon	September 29, 2008	Philippe Couillard		Liberal	Yves Bolduc		Liberal	Resignation	Yes
Pointe-aux-Trembles	May 12, 2008	André Boisclair		Parti Québécois	Nicole Léger		Parti Québécois	Resignation	Yes
Hull	May 12, 2008	Roch Cholette		Liberal	Maryse Gaudreault		Liberal	Resignation	Yes
Bourget	May 12, 2008	Diane Lemieux		Parti Québécois	Maka Kotto		Parti Québécois	Resignation	Yes
Charlevoix	September 24, 2007	Rosaire Bertrand		Parti Québécois	Pauline Marois		Parti Québécois	Resignation to provide a seat for Marois	Yes

By-election	Date	Incumbent	Party		Winner	Party		Cause	Retained
Taillon	August 14, 2006	Pauline Marois		Parti Québécois	Marie Malavoy		Parti Québécois	Resignation	Yes
Pointe-aux-Trembles	August 14, 2006	Nicole Léger		Parti Québécois	André Boisclair		Parti Québécois	Resignation	Yes
Sainte-Marie–Saint-Jacques	April 10, 2006	André Boulerice		Parti Québécois	Martin Lemay		Parti Québécois	Resignation	Yes
Verchères	December 12, 2005	Bernard Landry		Parti Québécois	Stéphane Bergeron		Parti Québécois	Resignation	Yes
Outremont	December 12, 2005	Yves Séguin		Liberal	Raymond Bachand		Liberal	Resignation	Yes
Vanier	September 20, 2004	Marc Bellemare		Liberal	Sylvain Légaré		ADQ	Resignation	No
Nelligan	September 20, 2004	Russell Williams		Liberal	Yolande James		Liberal	Resignation	Yes
Laurier-Dorion	September 20, 2004	Christos Sirros		Liberal	Elsie Lefebvre		Parti Québécois	Resignation	No
Gouin	September 20, 2004	André Boisclair		Parti Québécois	Nicolas Girard		Parti Québécois	Resignation	Yes

By-election	Date	Incumbent	Party		Winner	Party		Cause	Retained
Vimont	June 17, 2002	David Cliche		Parti Québécois	François Gaudreau		ADQ	Resignation	No
Lac-Saint-Jean	June 17, 2002	Jacques Brassard		Parti Québécois	Stéphan Tremblay		Parti Québécois	Resignation	Yes
Joliette	June 17, 2002	Guy Chevrette		Parti Québécois	Sylvie Lespérance		ADQ	Resignation	No
Berthier	June 17, 2002	Gilles Baril		Parti Québécois	Marie Grégoire		ADQ	Resignation	No
Viger	April 15, 2002	Cosmo Maciocia		Liberal	Anna Mancuso		Liberal	Resignation to enter municipal politics in Montreal	Yes
Saguenay	April 15, 2002	Gabriel-Yvan Gagnon		Parti Québécois	François Corriveau		ADQ	Resignation	No
Anjou	April 15, 2002	Jean-Sébastien Lamoureux		Liberal	Lise Thériault		Liberal	Resignation due to a vote buying scandal causing doubt on the validity of his election	Yes
Laviolette	October 1, 2001	Jean-Pierre Jolivet		Parti Québécois	Julie Boulet		Liberal	Resignation	No
Labelle	October 1, 2001	Jacques Léonard		Parti Québécois	Sylvain Pagé		Parti Québécois	Resignation	Yes
Jonquière	October 1, 2001	Lucien Bouchard		Parti Québécois	Françoise Gauthier		Liberal	Resignation	No
Blainville	October 1, 2001	Céline Signori		Parti Québécois	Richard Legendre		Parti Québécois	Appointed to the Quebec Municipal Commission	Yes
Mercier	April 9, 2001	Robert Perreault		Parti Québécois	Nathalie Rochefort		Liberal	Resignation	No

By-election	Date	Incumbent	Party		Winner	Party		Cause	Retained
Argenteuil	June 1, 1998	Régent L. Beaudet		Liberal	David Whissell		Liberal	Resignation	Yes
Kamouraska-Témiscouata	October 6, 1997	France Dionne		Liberal	Claude Béchard		Liberal	Resignation to contest the 1997 federal election	Yes
Duplessis	October 6, 1997	Denis Perron		Parti Québécois	Normand Duguay		Parti Québécois	Death	Yes
Bourassa	October 6, 1997	Yvon Charbonneau		Liberal	Michèle Lamquin-Éthier		Liberal	Resignation to contest the 1997 federal election	Yes
Bertrand	October 6, 1997	Robert Therien		Independent*	Denis Chalifoux		Liberal	Void Election	Yes/No
Prévost	April 28, 1997	Daniel Paillé		Parti Québécois	Lucie Papineau		Parti Québécois	Resignation	Yes
Beauce-Sud	April 28, 1997	Paul-Eugène Quirion		Liberal	Diane Leblanc		Liberal	Death	Yes
Pointe-aux-Trembles	December 9, 1996	Michel Bourdon		Parti Québécois	Nicole Léger		Parti Québécois	Resignation	Yes
Outremont	June 10, 1996	Gérald Tremblay		Liberal	Pierre-Étienne Laporte		Liberal	Resignation	Yes
L'Assomption	June 10, 1996	Jacques Parizeau		Parti Québécois	Jean-Claude St-André		Parti Québécois	Resignation	Yes
La Prairie	February 19, 1996	Denis Lazure		Parti Québécois	Monique Simard		Parti Québécois	Resignation	Yes
Jonquière	February 19, 1996	Francis Dufour		Parti Québécois	Lucien Bouchard		Parti Québécois	Resignation to provide a seat for Bouchard	Yes

*Therien was a former Liberal

By-election	Date	Incumbent	Party		Winner	Party		Cause	Retained
Shefford	February 28, 1994	Roger Paré		Parti Québécois	Bernard Brodeur		Liberal	Resignation	No
Bonaventure	February 21, 1994	Gérard D. Levesque		Liberal	Marcel Landry		Parti Québécois	Death	No
Laval-des-Rapides	December 13, 1993	Guy Bélanger		Liberal	Serge Ménard		Parti Québécois	Resignation	No
Portneuf	July 5, 1993	Michel Pagé		Liberal	Roger Bertrand		Parti Québécois	Resignation	No
Anjou	January 20, 1992	René Serge Larouche		Independent*	Pierre Bélanger		Parti Québécois	Resignation	No
Montmorency	August 12, 1991	Yves Séguin		Liberal	Jean Filion		Parti Québécois	Resignation	No

*Larouche was a former Liberal

By-election	Date	Incumbent	Party		Winner	Party		Cause	Retained
Papineau	May 29, 1989	Mark Assad		Liberal	Norman MacMillan		Liberal	Resignation to contest the 1988 federal election	Yes
Hull	May 29, 1989	Gilles Rocheleau		Liberal	Robert LeSage		Liberal	Resignation to contest the 1988 federal election	Yes
Roberval	June 20, 1988	Michel Gauthier		Parti Québécois	Gaston Blackburn		Liberal	Resignation	No
Anjou	June 20, 1988	Pierre-Marc Johnson		Parti Québécois	René Serge Larouche		Liberal	Resignation	No
Notre-Dame-de-Grâce	September 14, 1987	Reed Scowen		Liberal	Harold Thuringer		Liberal	Resignation to become Delegate General	Yes
Saint-Laurent	January 20, 1986	Germain Leduc		Liberal	Robert Bourassa		Liberal	Resignation to provide a seat for Bourassa	Yes

By-election	Date	Incumbent	Party		Winner	Party		Cause	Retained
Trois-Rivières	June 3, 1985	Denis Vaugeois		Parti Québécois	Paul Philibert		Liberal	Resignation	No
L'Assomption	June 3, 1985	Jacques Parizeau		Parti Québécois	Jean-Guy Gervais		Liberal	Resignation	No
Bourget	June 3, 1985	Camille Laurin		Parti Québécois	Claude Trudel		Liberal	Resignation	No
Bertrand	June 3, 1985	Denis Lazure		Parti Québécois	Robert Bourassa		Liberal	Resignation	No
Saint-Jacques	November 26, 1984	Serge Champagne		Liberal	Jean-François Viau		Liberal	Death (car accident)	Yes
Sauvé	June 18, 1984	Jacques-Yvan Morin		Parti Québécois	Marcel Parent		Liberal	Resignation	No
Marie-Victorin	June 18, 1984	Pierre Marois		Parti Québécois	Guy Pratt		Liberal	Resignation	No
Marguerite-Bourgeoys	June 18, 1984	Fernand Lalonde		Liberal	Gilles Fortin		Liberal	Resignation	Yes
Mégantic-Compton	December 5, 1983	Fabien Bélanger		Liberal	Madeleine Bélanger		Liberal	Death	Yes
Jonquière	December 5, 1983	Claude Vaillancourt		Parti Québécois	Aline Saint-Amand		Liberal	Appointed a judge	No
Saint-Jacques	June 20, 1983	Claude Charron		Parti Québécois	Serge Champagne		Liberal	Resignation	No
Saguenay	June 20, 1983	Lucien Lessard		Parti Québécois	Ghislain Maltais		Liberal	Resignation	No
Charlesbourg	June 20, 1983	Denis de Belleval		Parti Québécois	Marc-Yvan Côté		Liberal	Resignation	No
Saint-Laurent	April 5, 1982	Claude Forget		Liberal	Germain Leduc		Liberal	Resignation	Yes
Louis-Hébert	April 5, 1982	Claude Morin		Parti Québécois	Réjean Doyon		Liberal	Resignation	No

By-election	Date	Incumbent	Party		Winner	Party		Cause	Retained
Outremont	November 17, 1980	André Raynauld		Liberal	Pierre Fortier		Liberal	Resignation	Yes
Mégantic-Compton	November 17, 1980	Fernand Grenier		Union Nationale	Fabien Bélanger		Liberal	Resignation to contest the 1980 federal election	No
Johnson	November 17, 1980	Maurice Bellemare		Union Nationale	Camille Picard		Liberal	Resignation	No
Brome-Missisquoi	November 17, 1980	Armand Russell		Union Nationale	Pierre Paradis		Liberal	Resignation to contest the 1980 federal election	No
D'Arcy-McGee	November 26, 1979	Victor Goldbloom		Liberal	Herbert Marx		Liberal	Resignation to become head of the Canadian Council of Christians and Jews	Yes
Prévost	November 14, 1979	Jean-Guy Cardinal		Parti Québécois	Solange Chaput-Rolland		Liberal	Death	No
Maisonneuve	November 14, 1979	Robert Burns		Parti Québécois	Georges Lalande		Liberal	Resignation (health reasons)	No
Beauce-Sud	November 14, 1979	Fabien Roy		Parti national populaire	Hermann Mathieu		Liberal	Resignation to contest the 1979 federal election	No
Jean-Talon	April 30, 1979	Raymond Garneau		Liberal	Jean-Claude Rivest		Liberal	Resignation	Yes
Argenteuil	April 30, 1979	Zoël Saindon		Liberal	Claude Ryan		Liberal	Resignation to provide a seat for Ryan	Yes
Notre-Dame-de-Grâce	July 5, 1978	Bryce Mackasey		Liberal	Reed Scowen		Liberal	Resignation	Yes

By-election	Date	Incumbent	Party		Winner	Party		Cause	Retained
Johnson	August 28, 1974	Jean-Claude Boutin		Liberal	Maurice Bellemare		Union Nationale	Sought re-election due to charges of illegally acting as a Crown prosecutor	No

By-election	Date	Incumbent	Party		Winner	Party		Cause	Retained
Gatineau	November 15, 1972	Michel Gratton		Liberal	Michel Gratton		Liberal	Void Election	Yes
Gatineau	October 11, 1972	Roy Fournier		Liberal	Michel Gratton		Liberal	Appointed a judge	Yes
Duplessis	October 11, 1972	Henri-Laurier Coiteux		Liberal	Donald Gallienne		Liberal	Death	Yes
Chambly	February 8, 1971	Pierre Laporte		Liberal	Jean Cournoyer		Liberal	Death (murdered)	Yes

Upon the abolition of the Legislative Council on December 31, 1968, the Legislative Assembly of Quebec is renamed the National Assembly of Quebec

By-election	Date	Incumbent	Party		Winner	Party		Cause	Retained
Vaudreuil-Soulanges	October 8, 1969	Paul Gérin-Lajoie		Liberal	François-Édouard Belliveau		Union Nationale	Resignation	No
Trois-Rivières	October 8, 1969	Yves Gabias		Union Nationale	Gilles Gauthier		Union Nationale	Appointed a judge	Yes
Saint-Jacques	October 8, 1969	Paul Dozois		Union Nationale	Jean Cournoyer		Union Nationale	Appointed to the Board of Hydro-Québec	Yes
Sainte-Marie	October 8, 1969	Edgar Charbonneau		Union Nationale	Jean-Jacques Croteau		Union Nationale	Resignation	Yes
Dorion	March 3, 1969	François Aquin		Independent*	Mario Beaulieu		Union Nationale	Resignation	No
Notre-Dame-de-Grâce	December 4, 1968	Eric Kierans		Liberal	William Tetley		Liberal	Resignation to contest the 1968 federal election	Yes
Bagot	December 4, 1968	Daniel Johnson		Union Nationale	Jean-Guy Cardinal		Union Nationale	Death	Yes

* Aquin was a former Liberal

By-election	Date	Incumbent	Party		Winner	Party		Cause	Retained
Terrebonne	January 18, 1965	Lionel Bertrand		Liberal	Denis Hardy		Liberal	Appointed to the Legislative Council	Yes
Saint-Maurice	January 18, 1965	René Hamel		Liberal	Jean-Guy Trépanier		Liberal	Appointed a judge	Yes
Saguenay	October 5, 1964	Rodrigue Thibault		Liberal	Pierre-Willie Maltais		Liberal	Death	Yes
Montréal-Verdun	October 5, 1964	George O'Reilly		Liberal	Claude Wagner		Liberal	Appointed to the Legislative Council	Yes
Matane	October 5, 1964	Philippe Castonguay		Liberal	Jacques Bernier		Liberal	Death	Yes
Dorchester	October 5, 1964	Joseph-Armand Nadeau		Union Nationale	Francis O'Farrell		Liberal	Death	No
Montréal–Notre-Dame-de-Grâce	September 25, 1963	Paul Earl		Liberal	Eric Kierans		Liberal	Death	Yes

By-election	Date	Incumbent	Party		Winner	Party		Cause	Retained
Jacques-Cartier	December 14, 1961	Charles-Aimé Kirkland		Liberal	Marie-Claire Kirkland		Liberal	Death	Yes
Chambly	December 14, 1961	Robert Théberge		Liberal	Pierre Laporte		Liberal	Death	Yes
Rouville	November 23, 1960	Laurent Barré		Union Nationale	François Boulais		Liberal	Resignation	No
Joliette	November 23, 1960	Antonio Barrette		Union Nationale	Gaston Lambert		Liberal	Resignation	No

By-election	Date	Incumbent	Party		Winner	Party		Cause	Retained
Lac-Saint-Jean	September 16, 1959	Antonio Auger		Union Nationale	Jean-Paul Levasseur		Union Nationale	Appointed to the Legislative Council	Yes
Labelle	September 16, 1959	Pierre Bohémier		Union Nationale	Fernand Lafontaine		Union Nationale	Death	Yes
Roberval	October 15, 1958	Paul-Henri Spence		Union Nationale	Jean-Joseph Turcotte		Union Nationale	Resignation	Yes
Labelle	October 15, 1958†	Albiny Paquette		Union Nationale	Pierre Bohémier		Union Nationale	Appointed to the Legislative Council	Yes
Matane	July 2, 1958	Onésime Gagnon		Union Nationale	Benoît Gaboury		Union Nationale	Appointed Lieutenant Governor	Yes
Vaudreuil-Soulanges	September 18, 1957	Joseph-Édouard Jeannotte		Union Nationale	Loyola Schmidt		Union Nationale	Death	Yes
Mégantic	September 18, 1957	Tancrède Labbé		Union Nationale	Joseph-Émile Fortin		Union Nationale	Death (car accident)	Yes
Compton	September 18, 1957	Fabien Gagnon		Liberal	Claude-Gilles Gosselin		Union Nationale	Death	No
Châteauguay	September 18, 1957	Arthur Laberge		Union Nationale	Joseph-Maurice Laberge		Union Nationale	Death	Yes

† Won by acclamation

By-election	Date	Incumbent	Party		Winner	Party		Cause	Retained
Westmount–Saint-Georges	July 6, 1955	George Carlyle Marler		Liberal	John Richard Hyde		Liberal	Resignation to enter federal politics	Yes
Saint-Hyacinthe	July 6, 1955	Ernest-Joseph Chartier		Union Nationale	Pierre-Jacques-François Bousquet		Union Nationale	Death	Yes
Montréal-Laurier	July 6, 1955	Paul Provençal		Union Nationale	Arsène Gagné		Union Nationale	Death	Yes
Compton	September 15, 1954	Charles Daniel French		Union Nationale	John William French		Union Nationale	Death	Yes
Portneuf	July 9, 1953	Bona Dussault		Union Nationale	Rosaire Chalifour		Union Nationale	Death	Yes
Montréal-Outremont	July 9, 1953	Henri Groulx		Liberal	Georges-Émile Lapalme		Liberal	Death	Yes
Matapédia	July 9, 1953	Philippe Cossette		Union Nationale	Clovis Gagnon		Union Nationale	Death (car accident)	Yes

By-election	Date	Incumbent	Party		Winner	Party		Cause	Retained
Lévis	February 16, 1949	Joseph-Théophile Larochelle		Union Nationale	Joseph-Albert Samson		Union Nationale	Appointed to the Legislative Council	Yes
Brome	December 7, 1948†	Jonathan Robinson		Union Nationale	Charles James Warwick Fox		Union Nationale	Death	Yes

† Won by acclamation

By-election	Date	Incumbent	Party		Winner	Party		Cause	Retained
Huntingdon	July 23, 1947	Dennis James O'Connor		Liberal	John Gillies Rennie		Union Nationale	Death	No
Bagot	December 18, 1946	Cyrille Dumaine		Liberal	Daniel Johnson		Union Nationale	Death	No
Compton	July 3, 1946	William James Duffy		Liberal	Charles Daniel French		Union Nationale	Death	No
Beauce	November 21, 1945	Édouard Lacroix		Bloc populaire canadien	Georges-Octave Poulin		Union Nationale	Resignation	No

By-election	Date	Incumbent	Party		Winner	Party		Cause	Retained
Westmount–Saint-Georges	March 23, 1942	George Gordon Hyde		Liberal	George Carlyle Marler		Liberal	Appointed to the Legislative Council	Yes
Richelieu-Verchères	March 23, 1942	Félix Messier		Liberal	Joseph-Willie Robidoux		Liberal	Appointed to the Legislative Council	Yes
Montréal–Saint-Jacques	March 23, 1942	Joseph-Roméo Toupin		Liberal	Claude Jodoin		Liberal	Death	Yes
Montréal–Sainte-Anne	March 23, 1942	Francis Lawrence Connors		Liberal	Thomas Guérin		Liberal	Appointed to the Legislative Council	Yes
Saint-Jean–Napierville	October 6, 1941	Alexis Bouthillier		Liberal	Jean-Paul Beaulieu		Union Nationale	Death	No
Huntingdon	October 6, 1941	James Walker Ross		Liberal	Dennis James O'Connor		Liberal	Death	Yes
Terrebonne	November 19, 1940	Athanase David		Liberal	Damase Perrier		Liberal	Appointed to the Senate	Yes
Mégantic	November 19, 1940	Louis Houde		Liberal	Tancrède Labbé		Union Nationale	Resignation to be appointed a judge	No

By-election	Date	Incumbent	Party		Winner	Party		Cause	Retained
Stanstead	November 2, 1938	Rouville Beaudry		Union Nationale	Henri Gérin		Union Nationale	Resignation	Yes
Montréal–Saint-Louis	November 2, 1938	Peter Bercovitch		Liberal	Louis Fitch		Union Nationale	Resignation to enter federal politics	No
Chicoutimi	May 25, 1938	Arthur Larouche		Union Nationale	Antonio Talbot		Union Nationale	Resignation	Yes
Bagot	February 16, 1938	Cyrille Dumaine		Liberal	Philippe Adam		Union Nationale	Void Election	No
Beauce	March 17, 1937	Raoul Poulin		Union Nationale	Joseph-Emile Perron		Union Nationale	Resignation	Yes

no by-elections

By-election	Date	Incumbent	Party		Winner	Party		Cause	Retained
Jacques-Cartier	November 25, 1933†	Victor Marchand		Liberal	Joseph-Théodule Rhéaume		Liberal	Appointed to the Legislative Council	Yes
Wolfe	November 14, 1933	Cyrénus Lemieux		Liberal	Thomas Hercule Lapointe		Liberal	Appointed Sheriff	Yes
Nicolet	November 7, 1933†	Joseph-Alcide Savoie		Liberal	Alexandre Gaudet		Liberal	Death	Yes

† Won by acclamation

By-election	Date	Incumbent	Party		Winner	Party		Cause	Retained
Maskinongé	November 4, 1930	Joseph-William Gagnon		Liberal	Louis-Joseph Thisdel		Liberal	Death	Yes
Huntingdon	November 4, 1930	Andrew Philps		Liberal	Martin Bettie Fisher		Conservative	Death	No
Deux-Montagnes	November 4, 1930	Arthur Sauvé		Conservative	Paul Sauvé		Conservative	Resignation to contest the 1930 federal election	Yes
Bellechasse	October 20, 1930	Antonin Galipeault		Liberal	Robert Taschereau		Liberal	Appointed a judge	Yes
Beauce	December 9, 1929†	Joseph-Hugues Fortier		Liberal	Joseph-Édouard Fortin		Liberal	Appointed a judge	Yes
Montcalm	November 16, 1929	Joseph-Ferdinand Daniel		Liberal	Joseph-Léonide Perron		Liberal	Appointed to the Legislative Council	Yes
Richelieu	October 28, 1929	Jean-Baptiste Lafrenière		Liberal	Avila Turcotte		Liberal	Appointed Chairman of the Commission of Agricultural Credit	Yes
Compton	September 30, 1929	Jacob Nicol		Liberal	Andrew Ross McMaster		Liberal	Appointed to the Legislative Council	Yes
L'Islet	May 13, 1929†	Élisée Thériault		Liberal	Adélard Godbout		Liberal	Appointed to the Legislative Council	Yes
Québec-Est	October 24, 1928	Louis-Alfred Létourneau		Liberal	Oscar Drouin		Liberal	Appointed to the Legislative Council	Yes
Montréal–Sainte-Marie	October 24, 1928	Joseph Gauthier		Liberal	Camillien Houde		Conservative	Void Election	No
Îles-de-la-Madeleine	July 14, 1928†	Joseph-Édouard Caron		Liberal	Amédée Caron		Liberal	Appointed to the Legislative Council	Yes
Portneuf	October 31, 1927	Édouard Hamel		Liberal	Victor Marchand		Liberal	Appointed Registrar	Yes
Kamouraska	October 31, 1927	Nérée Morin		Liberal	Pierre Gagnon		Liberal	Death	Yes

† Won by acclamation

By-election	Date	Incumbent	Party		Winner	Party		Cause	Retained
Jacques-Cartier	November 30, 1925	Esioff-Léon Patenaude		Conservative	Victor Marchand		Liberal	Resignation to contest the 1925 federal election	No
Champlain	November 30, 1925	Bruno Bordeleau		Liberal	William-Pierre Grant		Liberal	Appointed registrar	Yes
Berthier	November 30, 1925	Siméon Lafrenière		Liberal	Amédée Sylvestre		Liberal	Appointed registrar	Yes
Argenteuil	November 30, 1925	John Hay		Liberal	Joseph-Léon Saint-Jacques		Conservative	Death	No
Témiscamingue	November 28, 1924	Télesphore Simard		Liberal	Joseph Miljours		Liberal	Death	Yes
Sherbrooke	November 5, 1924	Moïse O'Bready		Conservative	Armand-Charles Crépeau		Conservative	Death	Yes
Saint-Maurice	November 5, 1924	Léonide-Nestor-Arthur Ricard		Liberal	Alphonse-Edgar Guillemette		Liberal	Death (car accident)	Yes
Québec-Comté	November 5, 1924	Aurèle Leclerc		Liberal	Ludger Bastien		Conservative	Appointed registrar	No
Montréal–Sainte-Anne	November 5, 1924	William James Hushion		Liberal	Joseph Henry Dillon		Liberal	Resignation to enter federal politics	Yes
Bonaventure	November 5, 1924	Joseph-Fabien Bugeaud		Liberal	Pierre-Émile Côté		Liberal	Appointed a judge	Yes
Yamaska	October 22, 1923	Édouard Ouellette		Liberal	David Laperrière		Liberal	Appointed to the Legislative Council	Yes
Richmond	October 22, 1923	Georges-Ervé Denault		Liberal	Stanislas-Edmond Desmarais		Liberal	Death	Yes
Brome	October 22, 1923	William Robert Oliver		Liberal	Carlton James Oliver		Liberal	Death	Yes
Abitibi	October 22, 1923	Joseph-Édouard Perrault		Liberal	Hector Authier		Liberal	Chose to sit for Arthabaska	Yes

By-election	Date	Incumbent	Party		Winner	Party		Cause	Retained
Sherbrooke	September 7, 1922†	Joseph-Henri Lemay		Liberal	Ludger Forest		Liberal	Appointed a judge	Yes
Labelle	August 17, 1922	Honoré Achim		Liberal	Désiré Lahaie		Liberal	Appointed a judge	Yes
Verchères	December 22, 1921	Adrien Beaudry		Liberal	Jean-Marie Richard		Liberal	Appointed Chairman of the Public Services Commission	Yes
Témiscouata	December 22, 1921	Louis-Eugène-Aduire Parrot		Liberal	Eugène Godbout		Liberal	Resignation	Yes
Montréal–Ste-Marie	December 22, 1921	Napoléon Séguin		Liberal	Joseph Gauthier		Parti ouvrier	Appointed Governor of Bordeaux Prison	No
Wolfe	December 15, 1921†	Joseph-Eugène Rhéault		Liberal	Cyrinus Lemieux		Liberal	Death	Yes
Trois-Rivières	December 15, 1921†	Joseph-Adolphe Tessier		Liberal	Louis-Philippe Mercier		Liberal	Appointed Chairman of the Running Streams Commission	Yes
Richmond	December 15, 1921†	Walter George Mitchell		Liberal	Jacob Nicol		Liberal	Resignation to contest the 1921 federal election	Yes
Beauce	December 15, 1921†	Arthur Godbout		Liberal	Joseph-Hughes Fortier		Liberal	Appointed a judge	Yes
Saint-Maurice	October 19, 1920	Georges-Isidore Delisle		Liberal	Léonide-Nestor-Arthur Ricard		Liberal	Death	Yes
Kamouraska	October 19, 1920	Charles-Adolphe Stein		Liberal	Nérée Morin		Liberal	Resignation to enter federal politics	Yes
Portneuf	October 11, 1920†	Lomer Gouin		Liberal	Édouard Hamel		Liberal	Appointed to the Legislative Council	Yes
Terrebonne	September 6, 1919†	Athanase David		Liberal	Athanase David		Liberal	Sought re-election upon appointment as Provincial Secretary	Yes
Bellechasse	September 6, 1919†	Antonin Galipeault		Liberal	Antonin Galipeault		Liberal	Sought re-election upon appointment as Minister of Public Works and Labour	Yes
Arthabaska	September 6, 1919†	Joseph-Édouard Perrault		Liberal	Joseph-Édouard Perrault		Liberal	Sought re-election upon appointment as Minister of Colonization, Mines and Fisheries	Yes

† Won by acclamation

By-election	Date	Incumbent	Party		Winner	Party		Cause	Retained
Napierville	December 27, 1918	Cyprien Doris		Liberal	Amédée Monet		Liberal	Death	Yes
Montréal-St-Laurent	December 27, 1918	John Thomas Finnie		Liberal	Henry Miles		Liberal	Appointed Collector of Provincial Revenue	Yes
Matane	December 27, 1918	Donat Caron		Liberal	Octave Fortin		Liberal	Death	Yes
Ottawa	December 15, 1917†	Ferdinand-Ambroise Gendron		Liberal	Joseph Caron		Liberal	Death	Yes
Nicolet	December 15, 1917†	Arthur Trahan		Liberal	Joseph-Alcide Savoie		Liberal	Resignation to contest the 1917 federal election	Yes
Labelle	December 15, 1917†	Hyacinthe-Adélard Fortier		Liberal	Honoré Achim		Liberal	Resignation to contest the 1917 federal election	Yes
Dorchester	December 15, 1917†	Lucien Cannon		Liberal	Ernest Ouellet		Liberal	Resignation to enter federal politics	Yes
Montcalm	November 12, 1917†	Joseph-Alcide Dupuis		Liberal	Joseph-Ferdinand Daniel		Liberal	Death	Yes
Brome	November 12, 1917†	William Frederick Bilas		Liberal	William Robert Oliver		Liberal	Appointed to the Legislative Council	Yes

† Won by acclamation

By-election	Date	Incumbent	Party		Winner	Party		Cause	Retained
Richmond	November 21, 1914†	Peter Samuel George Mackenzie		Liberal	Walter George Mitchell		Liberal	Death	Yes
Châteauguay	May 9, 1914†	Honoré Mercier Jr.		Liberal	Honoré Mercier Jr.		Liberal	Sought re-election upon appointment as Minister of Colonization, Mines and Fisheries	Yes
Bonaventure	May 7, 1914†	John Hall Kelly		Liberal	Joseph-Fabien Bugeaud		Liberal	Appointed to the Legislative Council	Yes
Trois-Rivières	March 18, 1914	Joseph-Adolphe Tessier		Liberal	Joseph-Adolphe Tessier		Liberal	Sought re-election upon appointment as Minister of Highways	Yes
St-Jean	November 10, 1913	Lomer Gouin		Liberal	Marcellin Robert		Liberal	Chose to sit for Portneuf	Yes
Huntingdon	November 10, 1913	William H. Walker		Liberal	Andrew Philps		Liberal	Death	Yes
Nicolet	June 2, 1913	Charles Ramsay Devlin		Liberal	Laetare Roy		Liberal	Chose to sit for Témiscamingue	Yes
Dorchester	June 2, 1913	Alfred Morissett		Liberal	Lucien Cannon		Liberal	Appointed Clerk of the Executive Council	Yes
Stanstead	January 16, 1913†	Prosper-Alfred Bissonnet		Liberal	Alfred-Joseph Bissonnett		Liberal	Appointed Collector of Revenue	Yes
Bagot	January 16, 1913†	Frédéric-Hector Daigneault		Liberal	Joseph-Émery Phaneuf		Liberal	Appointed Inspector of Asylums and Prisons	Yes
Verchères	October 16, 1912†	Amédée Geoffrion		Liberal	Joseph-Léonide Perron		Liberal	Appointed Recorder of Montreal	Yes

† Won by acclamation

By-election	Date	Incumbent	Party		Winner	Party		Cause	Retained
Lévis	September 21, 1911	Jean-Cléophas Blouin		Liberal	Laetare Roy		Liberal	Appointed Sheriff	Yes
Sherbrooke	August 17, 1911†	Jean-Marie-Joseph-Pantaléon Pelletier		Liberal	Calixte-Émile Therrien		Liberal	Appointed Agent-General in London	Yes
St. Jean	December 29, 1910	Gabriel Marchand		Liberal	Marcellin Robert		Liberal	Death	Yes
Drummond	March 5, 1910	Joseph Laferté		Liberal	Jules Allard		Liberal	Void Election	Yes
Argenteuil	March 5, 1910	William Alexander Weir		Liberal	John Hay		Liberal	Appointed a judge	Yes
Gaspé	February 17, 1910	Louis-Joseph Lemieux		Liberal	Joseph-Léonide Perron		Liberal	Appointed Sheriff	Yes
Richmond	January 27, 1910†	Peter Samuel George Mackenzie		Liberal	Peter Samuel George Mackenzie		Liberal	Sought re-election upon appointment as Provincial Treasurer	Yes
Kamouraska	December 6, 1909†	Louis-Rodolphe Roy		Liberal	Louis-Auguste Dupuis		Liberal	Appointed a judge	Yes
L'Islet	November 29, 1909†	Joseph-Édouard Caron		Liberal	Joseph-Édouard Caron		Liberal	Sought re-election upon appointment as Minister of Agriculture	Yes
St. Sauveur	November 12, 1909	Charles-Eugene Côté		Liberal	Joseph-Alphonse Langlois		Parti ouvrier	Appointed registrar	No
Montréal division no. 2	November 12, 1909	Henri Bourassa		Ligue nationaliste canadienne	Clement Robillard		Liberal	Chose to sit for St. Hyacinthe	No
Chambly	November 12, 1909	Maurice Perrault		Liberal	Lesieur Desaulniers		Liberal	Death	Yes
Hochelaga	February 2, 1909†	Louis-Jérémie Décarie		Liberal	Louis-Jérémie Décarie		Liberal	Sought re-election upon appointment as Minister of Agriculture	Yes
Bellechasse	February 2, 1909†	Adélard Turgeon		Liberal	Antonin Galipeault		Liberal	Appointed to the Legislative Council	Yes
Montréal division no. 6	December 28, 1908	Denis Tansey		Conservative	Michael James Walsh		Liberal	Void Election	No
Laval	December 28, 1908	Joseph-Wenceslas Lévesque		Liberal	Joseph-Wenceslas Lévesque		Liberal	Void Election	Yes
Châteauguay	December 28, 1908	Hospice Dumtremble		Conservative	Honoré Mercier Jr.		Liberal	Void Election	No
Québec Centre	December 23, 1908	Amédée Robitaille		Liberal	Eugène Leclerc		Liberal	Appointed a prothonotary	Yes
Montréal division no. 1	December 21, 1908†	Georges-Albini Lacombe		Liberal	Napoléon Séguin		Liberal	Appointed registrar	Yes
Rouville	October 26, 1908	Alfred Girard		Liberal	Joseph-Edmond Robert		Liberal	Appointed a prothonotary	Yes
Lac-Saint-Jean	October 14, 1908†	Theodore-Louis-Antoine Broet		Liberal	Jean-Baptiste Carbonneau		Liberal	Death (railroad accident)	Yes

† Won by acclamation

By-election	Date	Incumbent	Party		Winner	Party		Cause	Retained
Châteauguay	December 16, 1907	François-Xavier Dupuis		Liberal	Honoré Mercier Jr.		Liberal	Appointed Recorder of the Municipal Court of Montreal	Yes
Rimouski	November 4, 1907	Auguste Tessier		Liberal	Pierre-Émile D'Anjou		Liberal	Appointed a judge	Yes
Nicolet	November 4, 1907	Alfred Marchildon		Liberal	Charles Ramsey Devlin		Liberal	Resignation pending appointment as a judge	Yes
Montmorency	November 4, 1907	Louis-Alexandre Taschereau		Liberal	Louis-Alexandre Taschereau		Liberal	Sought re-election upon appointment as Minister of Public Works and Labor	Yes
Bellechasse	November 4, 1907	Adélard Turgeon		Liberal	Adélard Turgeon		Liberal	Sought re-election against Henri Bourassa	Yes
Montréal division no. 5	January 24, 1907	Christopher Benfield Carter		Liberal	Charles Ernest Gault		Conservative	Death	No
Îles-de-la-Madeleine	November 20, 1906	Robert Jamieson Leslie		Liberal	Louis-Albin Thériault		Liberal	Death (shipwreck)	Yes
Iberville	November 5, 1906	François Gosselin		Liberal	Joseph-Aldéric Benoit		Liberal	Appointed to the Legislative Council	Yes
L'Assomption	October 29, 1906†	Joseph-Edouard Duhamel		Liberal	Louis-Joseph Gauthier		Liberal	Appointed Inspector of the Registration Office	Yes
Brome	September 10, 1906†	John Charles McCorkill		Liberal	William Frederick Vilas		Liberal	Appointed a judge	Yes
Argenteuil	September 10, 1906†	William Alexander Weir		Liberal	William Alexander Weir		Liberal	Sought re-election upon appointment as Minister of Public Works and Labor	Yes
Napierville	December 14, 1905	Dominique Monet		Liberal	Cyprien Dorris		Liberal	Appointed Protonotary	Yes
St. Sauveur	October 14, 1905	Simon-Napoléon Parent		Liberal	Charles-Eugène Côté		Liberal	Resignation to be appointed Chairman of the Transcontinental Railway Commission	Yes
Montréal division no. 4	October 7, 1905†	James Cochrane		Liberal	George Washington Stephens, Jr.		Liberal	Death	Yes
Terrebonne	July 17, 1905†	Jean Prévost		Liberal	Jean Prévost		Liberal	Sought re-election upon appointment as Minister of Colonization, Mines and Fisheries	Yes
Yamaska	June 20, 1905†	Jules Allard		Liberal	Guillaume-Édouard Ouellet		Liberal	Appointed to the Legislative Council	Yes
Montréal division no. 2	April 10, 1905	Lomer Gouin		Liberal	Lomer Gouin		Liberal	Sought re-election upon appointment as Premier and Attorney General	Yes
Rimouski	April 3, 1905†	Auguste Tessier		Liberal	Auguste Tessier		Liberal	Sought re-election upon appointment as Minister of Agriculture	Yes
Kamouraska	April 3, 1905†	Louis-Rodolphe Roy		Liberal	Louis-Rodolphe Roy		Liberal	Sought re-election upon appointment as Provincial Secretary	Yes
Bellechasse	April 3, 1905†	Adélard Turgeon		Liberal	Adélard Turgeon		Liberal	Sought re-election upon appointment as Minister of Lands, Mines and Fisheries	Yes

† Won by acclamation

By-election	Date	Incumbent	Party		Winner	Party		Cause	Retained
Shefford	March 10, 1904	Tancrède Boucher de Grandbois		Liberal	Auguste Mathieu		Liberal	Resignation	Yes
Portneuf	March 10, 1904	Jules Tessier		Liberal	Damase-Épiphane Naud		Conservative	Appointed to the Senate	No
Maskinongé	March 10, 1904	Hector Caron		Liberal	Georges Lafontaine		Conservative	Appointed Superintendent of Game and Fisheries	No
Berthier	March 10, 1904	Cuthbert-Alphonse Chênevert		Liberal	Joseph Lafontaine		Liberal	Appointed Recorder for the Quebec Court of Appeal	Yes
Brome	October 29, 1903	Henry Thomas Duffy		Liberal	John Charles McCorkill		Liberal	Death	Yes
Stanstead	October 3, 1902	Moodie Brock Lovell		Liberal	Georges-Henri Saint-Pierre		Conservative	Death	No
Soulanges	October 3, 1902	Avila-Gonzague Bourbonnais		Liberal	Arcand-Momer Bissonnette		Conservative	Death	No
L'Islet	September 26, 1902†	François-Gilbert Miville Dechêne		Liberal	Joseph-Édouard Caron		Liberal	Death	Yes
Québec Centre	July 11, 1902†	Amédée Robitaille		Liberal	Amédée Robitaille		Liberal	Sought re-election upon appointment as Provincial Secretary	Yes
Beauce	January 31, 1902	Henri Sévérin Béland		Liberal	Arthur Godbout		Liberal	Resignation to enter federal politics	Yes
Vaudreuil	October 31, 1901	Émery Lalonde		Liberal	Hormidas Pilon		Liberal	Appointed Registar	Yes
Québec Comté	October 31, 1901	Némèse Garneau		Liberal	Cyrille-Fraser Delâge		Liberal	Appointed to the Legislative Council	Yes
Drummond	October 31, 1901	William John Watts		Liberal	Joseph Laferté		Liberal	Appointed Registrar	Yes
Lévis	October 24, 1901†	Charles Langelier		Liberal	Jean-Cléophas Blouin		Liberal	Appointed Sheriff	Yes

† Won by acclamation

By-election	Date	Incumbent	Party		Winner	Party		Cause	Retained
Matane	January 11, 1899	Louis-Félix Pinault		Liberal	Donat Caron		Liberal	Appointed Deputy Minister of Militia	Yes
Verchères	December 19, 1898	Étienne Blanchard		Liberal	Étienne Blanchard		Liberal	Void Election	Yes
Missisquoi	December 19, 1898	John Charles McCorkill		Liberal	Cedric Lemoine Cotton		Liberal	Appointed to the Legislative Council	Yes
Lévis	December 19, 1898	Nazaire-Nicolas Olivier		Liberal	Charles Langelier		Liberal	Death	Yes
Beauharnois	December 19, 1898	Élie-Hercule Bisson		Liberal	Arthur Plante		Conservative	Appointed Prothonotary for Beauharnois	No
Bonaventure	December 22, 1897	Victor Gladu		Liberal	Jules Allard		Liberal	Death	Yes
Lévis	December 22, 1897	François-Xavier Lemieux		Liberal	Nazaire-Nicolas Olivier		Liberal	Appointed a judge	Yes
Bonaventure	December 22, 1897	François-Xavier Lemieux		Liberal	William Henry Clapperton		Liberal	Appointed a judge	Yes
Yamaska	November 16, 1897	Albéric-Archie Mondou		Conservative	Victor Gladu		Liberal	Void Election	No
Brome	June 19, 1897	Henry Thomas Duffy		Liberal	Henry Thomas Duffy		Liberal	Sought re-election upon appointment as Commissioner of Public Works	Yes
St. Sauveur	June 12, 1897†	Simon-Napoléon Parent		Liberal	Simon-Napoléon Parent		Liberal	Sought re-election upon appointment as Commissioner of Lands, Forests and Fisheries	Yes
St. Jean	June 12, 1897†	Félix-Gabriel Marchand		Liberal	Félix-Gabriel Marchand		Liberal	Sought re-election upon appointment as Premier and Provincial Treasurer	Yes
L'Islet	June 12, 1897†	François-Gilbert Miville Dechêne		Liberal	François-Gilbert Miville Dechêne		Liberal	Sought re-election upon appointment as Commissioner of Agriculture	Yes
Châteauguay	June 12, 1897†	Joseph-Émery Robidoux		Liberal	Joseph-Émery Robidoux		Liberal	Sought re-election upon appointment as Provincial Secretary	Yes
Bellechasse	June 12, 1897†	Adélard Turgeon		Liberal	Adélard Turgeon		Liberal	Sought re-election upon appointment as Commissioner of Colonization and Mines	Yes

† Won by acclamation

By-election	Date	Incumbent	Party		Winner	Party		Cause	Retained
Montmorency	June 23, 1896	Thomas Chase-Casgrain		Conservative	Édouard Bouffard		Conservative	Resignation to contest the 1896 federal election	Yes
Montréal division no. 4	June 4, 1896†	Alexander Webb Morris		Conservative	Albert William Atwater		Conservative	Resignation to provide a seat for Atwater	Yes
Montréal division no. 6	October 22, 1895	Patrick Kennedy		Conservative	James John Edmund Guerin		Liberal	Death	No
Stanstead	March 21, 1895	Michael Felix Hackett		Conservative	Michael Felix Hackett		Conservative	Sought re-election upon appointment as President of the Executive Council	Yes
Bonaventure	December 11, 1894	Honoré Mercier		Liberal	François-Xavier Lemieux		Liberal	Death	Yes
Compton	October 19, 1894	John McIntosh		Conservative	Charles McClary		Conservative	Appointed Sheriff	Yes
Chambly	December 31, 1892†	Louis-Olivier Taillon		Conservative	Louis-Olivier Taillon		Conservative	Sought re-election upon appointment as Premier	Yes
Trois-Rivières	November 3, 1892	Télesphore-Eusèbe Normand		Conservative	Télesphore-Eusèbe Normand		Conservative	Void Election	Yes
Matane	November 3, 1892	Edmund James Flynn		Conservative	Louis-Félix Pinault		Liberal	Chose to sit for Gaspé	No
Beauharnois	June 7, 1892	Moïse Plante		Conservative	Élie-Hercule Bisson		Liberal	Death	No

† Won by acclamation

By-election	Date	Incumbent	Party		Winner	Party		Cause	Retained
Vaudreuil	November 22, 1890	Émery Lalonde		Liberal	Émery Lalonde		Liberal	Void Election	Yes
Montmorency	July 12, 1890†	Charles Langelier		Liberal	Charles Langelier		Liberal	Sought re-election upon appointment as President of the Executive Council	Yes

† Won by acclamation

By-election	Date	Incumbent	Party		Winner	Party		Cause	Retained
Berthier	January 15, 1890	Louis Sylvestre		Liberal	Omer Dostaler		Liberal	Resignation to be appointed to the Legislative Council	Yes
Québec Ouest	December 30, 1889	Owen Murphy		Liberal	Owen Murphy		Liberal	Void Election	Yes
Rimouski	December 4, 1889	Édouard-Onésiphore Martin		Liberal	Auguste Tessier		Liberal	Death	Yes
Brome	November 28, 1889	William Warren Lynch		Conservative	Rufus Nelson England		Conservative	Appointed a judge	Yes
Joliette	October 23, 1889	Louis Basinet		Liberal	Louis Basinet		Liberal	Void Election	Yes
Laprairie	January 24, 1889	Odilon Goyette		Parti national	Odilon Goyette		Parti national	Void Election	Yes
Mégantic	December 27, 1888	Andrew Stuart Johnson		Liberal	William Rhodes		Liberal	Void Election	Yes
L'Assomption	December 27, 1888	Ludger Forest		Liberal	Ludger Forest		Liberal	Void Election	Yes
Dorchester	December 20, 1888†	Louis-Napoléon Larochelle		Liberal	Louis-Philippe Pelletier		Nationalist Conservative	Appointed to the Legislative Council	No
Nicolet	July 17, 1888	Louis-Trefflé Dorais		Independent Conservative	Honoré Brunelle Tourigny		Conservative	Void Election	No
Chicoutimi et Saguenay	June 18, 1888	Élie Saint-Hilaire		Independent Conservative	Séverin Dumais		Parti national	Death	No
Trois-Rivières	May 25, 1888	Arthur Turcotte		Liberal	Arthur Turcotte		Liberal	Sought re-election upon appointment as Attorney General	Yes
Shefford	May 18, 1888	Thomas Brassard		Liberal	Tancrède Boucher de Grosbois		Liberal	Void Election	Yes
Laval	May 8, 1888	Pierre-Évariste Leblanc		Conservative	Pierre-Évariste Leblanc		Conservative	Void Election	Yes
Missisquoi	April 28, 1888	Elijah Edmund Spencer		Conservative	Elijah Edmund Spencer		Conservative	Void Election	Yes
Maskinongé	April 28, 1888	Édouard Caron		Conservative	Joseph-Hormisdas Legris		Parti national	Void Election	No
Hochelaga	April 28, 1888	Joseph-Octave Villeneuve		Conservative	Charles Champagne		Liberal	Void Election	No
Ottawa	September 14, 1887	Narcisse-Édouard Cormier		Conservative	Alfred Rochon		Liberal	Resignation in exchange for withdrawal of election petition	No
Laprairie	July 30, 1887	Léon-Benoît-Alfred Charlebois		Conservative	Odilon Goyette		Parti national	Death	No
St. Hyacinthe	February 12, 1887†	Honoré Mercier		Liberal	Honoré Mercier		Liberal	Sought re-election upon appointment as Premier and Attorney General	Yes
Québec Est	February 12, 1887†	Joseph Shehyn		Liberal	Joseph Shehyn		Liberal	Sought re-election upon appointment as Provincial Treasurer	Yes
Montréal Centre	February 12, 1887†	James McShane		Liberal	James McShane		Liberal	Sought re-election upon appointment as Commissioner of Agriculture and Public Works	Yes
Kamouraska	February 12, 1887†	Charles-Antoine-Ernest Gagnon		Liberal	Charles-Antoine-Ernest Gagnon		Liberal	Sought re-election upon appointment as Provincial Secretary	Yes
Iberville	February 12, 1887†	Georges Duhamel		Parti national	Georges Duhamel		Parti national	Sought re-election upon appointment as Solicitor General	Yes
Montcalm	December 11, 1886	Jean-Baptiste-Trefflé Richard		Conservative	Louis-Olivier Taillon		Conservative	Appointed crown lands agent	Yes
Iberville	December 11, 1886	Alexis-Louis Demers		Liberal	Georges Duhamel		Parti national*	Death	Yes

† Won by acclamation

* The Parti National was the official name of the Quebec Liberal Party during this period

By-election	Date	Incumbent	Party		Winner	Party		Cause	Retained
Verchères	May 5, 1886	Abraham Bernard		Liberal	Abraham Bernard		Liberal	Void Election	Yes
Drummond et Arthabaska	March 24, 1886	William John Watts		Liberal	Joseph-Éna Girouard		Liberal	Resignation over disagreement with his party over Louis Riel	Yes
Lotbinière	January 30, 1886	Henri-Gustave Joly de Lotbinière		Liberal	Édouard-Hippolyte Laliberté		Liberal	Resignation over disagreement with his party over Louis Riel	Yes
Joliette	September 24, 1885	Vincent-Paul Lavallée		Conservative	Joseph-Norbert-Alfred McConville		Conservative	Appointed to the Legislative Council	Yes
Mégantic	October 29, 1884	George Irvine		Liberal	John Whyte		Liberal	Appointed a judge	Yes
Laval	July 14, 1884	Amédée Gaboury		Liberal	Pierre-Évariste Leblanc		Conservative	Void Election	No
Vaudreuil	June 19, 1884†	François-Xavier Archambault		Conservative	Alfred Lapointe		Conservative	Void Election	Yes
Gaspé	April 2, 1884	Edmund James Flynn		Conservative	Edmund James Flynn		Conservative	Sought re-election upon appointment as Commissioner of Railways	Yes
Trois-Rivières	March 26, 1884	Sévère Dumoulin		Conservative	Arthur Turcotte		Independent Conservative	Void Election	No
Jacques Cartier	March 26, 1884	Joseph-Alfred Mousseau		Conservative	Arthur Boyer		Liberal	Appointed a judge	No
Deux-Montagnes	March 26, 1884	Benjamin Beauchamp		Conservative	Benjamin Beauchamp		Conservative	Void Election	Yes
Chateauguay	March 26, 1884	Édouard Laberge		Liberal	Joseph-Émery Robidoux		Liberal	Death	Yes
Sherbrooke	February 9, 1884†	Joseph Gibb Robertson		Conservative	Joseph Gibb Robertson		Conservative	Sought re-election upon appointment as Provincial Treasurer	Yes
Montreal Est	February 9, 1884†	Louis-Olivier Taillon		Conservative	Louis-Olivier Taillon		Conservative	Sought re-election upon appointment as Attorney General	Yes
Lévis	November 16, 1883	Étienne-Théodore Pâquet		Conservative	François-Xavier Lemieux		Liberal	Appointed Sheriff	No
Jacques Cartier	September 26, 1883	Joseph-Alfred Mousseau		Conservative	Joseph-Alfred Mousseau		Conservative	Void Election	Yes
Laval	June 13, 1883	Pierre-Évariste Leblanc		Conservative	Amédée Gaboury		Liberal	Void Election	No
Nicolet	February 5, 1883	Charles-Édouard Houde		Conservative	Louis-Trefflé Dorais		Independent Conservative	Void Election	No
Kamouraska	January 30, 1883	Charles-Antoine-Ernest Gagnon		Liberal	Charles-Antoine-Ernest Gagnon		Liberal	Void Election	Yes
Bonaventure	October 31, 1882†	Louis-Joseph Riopel		Conservative	Henri-Josué Martin		Conservative	Resignation to contest the 1882 federal election	Yes
Vaudreuil	October 30, 1882	Émery Lalonde		Conservative	François-Xavier Archambault		Conservative	Resignation upon appointment as an official at the Palace of Justice in Montreal	Yes
Laval	October 30, 1882	Louis-Onésime Loranger		Conservative	Pierre-Évariste Leblanc		Conservative	Appointed a judge	Yes
Deux-Montagnes	October 21, 1882	Charles Champagne		Conservative	Benjamin Beauchamp		Conservative	Sought re-election following dismissal of election petition	Yes
Jacques-Cartier	August 26, 1882	Narcisse Lecavalier		Conservative	Joseph-Alfred Mousseau		Conservative	Appointed Registrar	Yes
Terrebonne	August 19, 1882†	Joseph-Adolphe Chapleau		Conservative	Guillaume-Alphonse Nantel		Conservative	Resignation upon appointment to the federal cabinet	Yes
Beauce	August 14, 1880†	Jean Blanchet		Conservative	Jean Blanchet		Conservative	Sought re-election upon appointment as Provincial Secretary and Registrar	Yes
Pontiac	March 6, 1882	Thomas Bryson		Conservative	William Joseph Poupore		Conservative	Death	Yes
Yamaska	February 6, 1882†	Jonathan Saxton Campbell Würtele		Conservative	Jonathan Saxton Campbell Würtele		Conservative	Sought re-election upon appointment as Provincial Treasurer	Yes

† Won by acclamation

By-election	Date	Incumbent	Party		Winner	Party		Cause	Retained
Berthier	December 30, 1880	Joseph Robillard		Conservative	Joseph Robillard		Conservative	Void Election	Yes
L’Assomption	June 4, 1880	Onuphe Peltier		Conservative	Joseph Marion		Conservative	Death	Yes
Chicoutimi et Saguenay	March 27, 1880†	William Evan Price		Conservative	Joseph-Élisée Beaudet		Conservative	Resignation	Yes
Rimouski	March 3, 1880	Alexandre Chauveau		Liberal	Joseph Parent		Liberal	Appointed a judge	Yes
Gaspé	December 6, 1879†	Edmund James Flynn*		Conservative	Edmund James Flynn		Conservative	Sought re-election upon appointment as Commissioner of Crown Lands	Yes
Sherbrooke	November 20, 1879	Joseph Gibb Robertson		Conservative	Joseph Gibb Robertson		Conservative	Sought re-election upon appointment as Provincial Treasurer	Yes
Lévis	November 20, 1879	Étienne-Théodore Pâquet*		Conservative	Étienne-Théodore Pâquet		Conservative	Sought re-election upon appointment as Provincial Secretary and Registrar	Yes
Brome	November 20, 1879	William Warren Lynch		Conservative	William Warren Lynch		Conservative	Sought re-election upon appointment as Solicitor General	Yes
Terrebonne	November 13, 1879†	Joseph-Adolphe Chapleau		Conservative	Joseph-Adolphe Chapleau		Conservative	Sought re-election upon appointment as Premier and Commissioner of Agriculture and Public Works	Yes
Laval	November 13, 1879†	Louis-Onésime Loranger		Conservative	Louis-Onésime Loranger		Conservative	Sought re-election upon appointment as Attorney General	Yes
Verchères	July 17, 1879	Jean-Baptiste Brousseau		Liberal	Achille Larose		Liberal	Void Election	Yes
Chambly	June 26, 1879	Michel-Dosithée-Stanislas Martel		Conservative	Raymond Préfontaine		Liberal	Void Election	No
Rouville	June 18, 1879	Solime Bertrand		Conservative	Flavien-Guillaume Bouthillier		Liberal	Void Election	No
St. Hyacinthe	June 3, 1879	Pierre Bachand		Liberal	Honoré Mercier		Liberal	Death	Yes

† Won by acclamation

* Flynn and Pacquet were former Liberals who crossed the floor to topple the Joly government

By-election	Date	Incumbent	Party		Winner	Party		Cause	Retained
Québec Ouest	December 17, 1877	John Hearn		Conservative	Richard Alleyn		Conservative	Appointed to the Legislative Council	Yes
Gaspé	July 2, 1877	Pierre-Étienne Fortin		Conservative	Pierre-Étienne Fortin		Conservative	Void Election	Yes
Kamouraska	March 19, 1877	Charles-François Roy		Conservative	Joseph Dumont		Liberal	Resignation to enter federal politics	No
Bonaventure	February 22, 1877	Pierre-Clovis Beauchesne		Conservative	Joseph Israël Tarte		Conservative	Void Election	Yes
Montmagny	November 30, 1876	Auguste Charles Philippe Robert Landry		Conservative	Louis-Napoléon Fortin		Liberal	Void Election	No
Nicolet	August 18, 1876	François-Xavier-Ovide Méthot		Conservative	Charles-Édouard Houde		Conservative	Void Election	Yes
Bagot	July 7, 1876	Pierre-Samuel Gendron		Conservative	Flavien Dupont		Conservative	Resignation to become Prothonotary for the Quebec Superior Court in Montreal District	Yes
Huntingdon	April 24, 1876†	Alexander Cameron		Liberal	Alexander Cameron		Liberal	Void Election	Yes
Trois-Rivières	April 18, 1876	Henri-Gédéon Malhiot		Conservative	Arthur Turcotte		Independent Conservative	Appointed Commissioner of the Quebec, Montreal, Ottawa and Occidental Railway	No
Mégantic	April 18, 1876	George Irvine		Liberal	Andrew Kennedy		Conservative	Appointed Commissioner of the Quebec, Montreal, Ottawa and Occidental Railway	No
Deux-Montagnes	March 3, 1876	Gédéon Ouimet		Conservative	Charles Champagne		Conservative	Appointed Superintendent of Public Instruction	Yes
Terrebonne	February 10, 1876†	Joseph-Adolphe Chapleau		Conservative	Joseph-Adolphe Chapleau		Conservative	Sought re-election upon appointment as Provincial Secretary and Registrar	Yes
Missisquoi	February 10, 1876†	George Barnard Baker		Conservative	George Barnard Baker		Conservative	Sought re-election upon appointment as Solicitor General	Yes

† Won by acclamation

By-election	Date	Incumbent	Party		Winner	Party		Cause	Retained
Pontiac	October 26, 1874†	John Poupore		Conservative	Levi Ruggles Church		Conservative	Resignation to provide a seat for Church	Yes
Québec-Comté	October 5, 1874†	Pierre Garneau		Conservative	Pierre Garneau		Conservative	Sought re-election upon appointment as Commissioner of Agriculture and Public Works	Yes
Montmorency	October 5, 1874†	Auguste-Réal Angers		Conservative	Auguste-Réal Angers		Conservative	Sought re-election upon appointment as Solicitor General	Yes
Trois-Rivières	October 3, 1874†	Henri-Gédéon Malhiot		Conservative	Henri-Gédéon Malhiot		Conservative	Sought re-election upon appointment as Commissioner of Crown Lands	Yes
Bonaventure	August 4–5, 1874	Théodore Robitaille		Conservative	Pierre-Clovis Beauchesne		Conservative	Resignation upon abolition of the dual mandate	Yes
Huntingdon	May 30, 1874	Thomas Sanders		Conservative	Alexander Cameron		Conservative	Death	Yes
Chicoutimi et Saguenay	May 2, 1874†	Pierre-Alexis Tremblay		Liberal	Michel Guillaume Baby		Conservative	Resignation upon abolition of the dual mandate	No
Québec Est	April 16–17, 1874	Charles Alphonse Pantaléon Pelletier		Liberal	Pierre-Vincent Valin		Conservative	Resignation upon abolition of the dual mandate	No
Québec Centre	April 16–17, 1874	Hector-Louis Langevin		Conservative	Rémi-Ferdinand Rinfret		Conservative	Resignation upon abolition of the dual mandate	Yes
Montcalm	March 13, 1874	Firmin Dugas		Conservative	Louis-Gustave Martin		Conservative	Resignation upon abolition of the dual mandate	Yes
Beauce	February 24, 1874	Christian Pozer		Liberal	François-Xavier Dulac		Conservative	Resignation upon abolition of the dual mandate	No
Drummond-Arthabaska	February 20, 1874	Wilfrid Laurier		Liberal	William John Watts		Conservative	Resignation to contest the 1874 federal election	No
Yamaska	February 11–12, 1874	Charles-Ignace Gill		Conservative	Joseph Nestor Duguay		Conservative	Resignation to contest the 1874 federal election	Yes
Montmorency	February 10–11, 1874	Joseph-Édouard Cauchon		Conservative	Auguste-Réal Angers		Conservative	Resignation upon abolition of the dual mandate	Yes
Montréal Centre	February 6, 1874†	Luther Hamilton Holton		Liberal	Charles Alexander		Liberal	Resignation upon abolition of the dual mandate	Yes
Montmagny	December 16, 1873	Télesphore Fournier		Liberal	François Langelier		Liberal	Resignation following appointment to the federal cabinet	Yes
Montréal Ouest	August 22, 1873	Francis Cassidy		Conservative	John Wait McGauvran		Conservative	Death	Yes
Beauharnois	July 12, 1873	George-Étienne Cartier		Conservative	Élie-Hercule Bisson		Liberal	Death	No
Gaspé	April 7, 1873†	Pierre-Étienne Fortin		Conservative	Pierre-Étienne Fortin		Conservative	Sought re-election upon appointment as Commissioner of Crown Lands	Yes
Québec-Comté	March 21, 1873†	Pierre-Joseph-Olivier Chauveau		Conservative	Pierre Garneau		Conservative	Appointed to the Senate	Yes
Terrebonne	March 12, 1873†	Joseph-Adolphe Chapleau		Conservative	Joseph-Adolphe Chapleau		Conservative	Sought re-election upon appointment as Solicitor General	Yes
Québec-Est	March 3–4, 1873	Jacques-Philippe Rhéaume		Conservative	Charles Alphonse Pantaléon Pelletier		Liberal	Appointed an agent for the Seigneurial Commission	No
Montmorency	December 23, 1872†	Joseph-Édouard Cauchon		Conservative	Joseph-Édouard Cauchon		Conservative	Sought re-election due to a scandal involving an asylum in Beauport	Yes
Rimouski	April 29, 1872	Louis Honoré Gosselin		Conservative	Alexandre Chauveau		Conservative	Resignation	Yes

† Won by acclamation

By-election	Date	Incumbent	Party		Winner	Party		Cause	Retained
Napierville	October 11, 1870†	Pierre Benoit		Liberal	Laurent-David Lafontaine		Liberal	Death	Yes
Huntingdon	November 6, 1869	Julius Scriver		Conservative	William Cantwell		Conservative	Resignation to enter federal politics	Yes
Sherbrooke	November 5, 1869†	Joseph Gibb Robertson		Conservative	Joseph Gibb Robertson		Conservative	Sought re-election upon appointment as Provincial Treasurer	Yes
Richelieu	October 29, 1869	Joseph Beaudreau		Conservative	Pierre Gélinas		Conservative	Death	Yes
Trois-Rivières	October 19, 1869	Sévère Dumoulin		Conservative	Charles-Borromée Genest		Conservative	Appointed Sheriff	Yes
Kamouraska	February 11, 1869	Vacant			Charles-François Roy		Conservative	No Election held in 1867 due to riots	N/A
Trois-Rivières	October 16, 1868†	Louis-Charles Boucher de Niverville		Conservative	Sévère Dumoulin		Conservative	Resignation to become Sheriff	Yes
Champlain	December 16, 1867†	John Jones Ross		Conservative	Jean-Charles Chapais		Conservative	Appointed to the Legislative Council	Yes

† Won by acclamation

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• http://www.assnat.qc.ca/en/patrimoine/chronologie/index.html
• http://www.assnat.qc.ca/en/patrimoine/partielles.html
• http://www.assnat.qc.ca/en/patrimoine/resultatselec/index.html

• List of federal by-elections in Canada