By-elections to the 9th Canadian Parliament were held to elect members of the House of Commons of Canada between the 1900 federal election and the 1904 federal election. The Liberal Party of Canada led a majority government for the 9th Canadian Parliament.

The list includes Ministerial by-elections which occurred due to the requirement that Members of Parliament recontest their seats upon being appointed to Cabinet. These by-elections were almost always uncontested. This requirement was abolished in 1931. By-election Date Incumbent Party Winner Party Cause RetainedGuysboroughMarch 16, 1904Duncan Cameron Fraser    LiberalJohn Howard Sinclair    LiberalAppointed to Supreme Court of Nova ScotiaYesGaspéFebruary 20, 1904Rodolphe Lemieux    LiberalRodolphe Lemieux    LiberalRecontested upon appointment as Solicitor-GeneralYesLambton EastFebruary 16, 1904Oliver Simmons    ConservativeJoseph Elijah Armstrong    ConservativeDeathYesSt. HyacintheFebruary 16, 1904Michel Esdras Bernier    LiberalJean Baptiste Blanchet    LiberalAppointed a Railway CommissionerYesCity of St. JohnFebruary 16, 1904Andrew George Blair    LiberalJohn Waterhouse Daniel    ConservativeAppointed head of the Board of Railway CommissionersNoBruce EastFebruary 16, 1904Henry Cargill    ConservativeJames J. Donnelly    ConservativeDeathYesSt. JamesFebruary 16, 1904Joseph Brunet    LiberalHonoré Hippolyte Achille Gervais    LiberalElection declared voidYesWest Queen'sFebruary 16, 1904Donald Farquharson    LiberalHorace Haszard    LiberalDeathYesMontmagnyFebruary 16, 1904Pierre-Raymond-Léonard Martineau    LiberalArmand Lavergne    LiberalDeathYesHochelagaFebruary 16, 1904Joseph Alexandre Camille Madore    LiberalLouis-Alfred-Adhémar Rivet    LiberalAppointed Puisne Judge of the Supreme Court of QuebecYesKamouraskaFebruary 12, 1904Henry George Carroll    LiberalErnest Lapointe    LiberalAppointed a judgeYesRouvilleJanuary 30, 1904Louis-Philippe Brodeur    LiberalLouis-Philippe Brodeur    LiberalRecontested upon appointment as Minister of Inland RevenueYesWestmorlandJanuary 30, 1904Henry Emmerson    LiberalHenry Emmerson    LiberalRecontested upon appointment as Minister of Railways and CanalsYesRussellApril 20, 1903William C. Edwards    LiberalDavid Wardrope Wallace    LiberalCalled to SenateYesOntario NorthMarch 10, 1903Angus McLeod    Liberal-ConservativeGeorge Davidson Grant    LiberalDeathNoMaskinongéMarch 3, 1903Joseph-Hormisdas Legris    LiberalHormidas Mayrand    LiberalCalled to SenateYesTerrebonneFebruary 24, 1903Raymond Préfontaine    LiberalSamuel Desjardins    LiberalRecontested upon ministerial appointment. Préfontaine was elected in two ridings simultaneously and chose to stand for re-election in Maisonneuve YesTwo MountainsFebruary 24, 1903Joseph Arthur Calixte Éthier    LiberalJoseph Arthur Calixte Éthier    LiberalElection declared voidYesGrey NorthFebruary 24, 1903Edward Henry Horsey    LiberalThomas Inkerman Thomson    ConservativeDeathNoBurrardFebruary 4, 1903George Ritchie Maxwell    LiberalRobert George Macpherson    LiberalDeathYesMaisonneuveDecember 9, 1902Raymond Préfontaine    LiberalRaymond Préfontaine    LiberalRecontested upon appointment as Minister of Marine and FisheriesYesArgenteuilDecember 3, 1902Thomas Christie    LiberalThomas Christie, Jr.    LiberalDeathYesYarmouthDecember 3, 1902Thomas Barnard Flint    LiberalBowman Brown Law    LiberalAppointed Clerk of the House of CommonsYesYukonDecember 2, 1902New SeatJames Hamilton Ross    LiberalNewly created electoral district under The Yukon Territory Representation Act 1902N.A.BeauharnoisMarch 26, 1902George di Madeiros Loy    LiberalGeorge di Madeiros Loy    LiberalElection declared voidYesKamouraskaFebruary 28, 1902Henry George Carroll    LiberalHenry George Carroll    LiberalRecontested upon appointment as Solicitor GeneralYesLisgarFebruary 18, 1902Robert Lorne Richardson    IndependentDuncan Alexander Stewart    LiberalElection declared voidNoQuebec WestJanuary 29, 1902Richard Reid Dobell    LiberalWilliam Power    LiberalDeathYesOxford NorthJanuary 29, 1902James Sutherland    LiberalJames Sutherland    LiberalRecontested upon appointment as Minister of Marine and FisheriesYesVictoriaJanuary 28, 1902Edward Gawler Prior    ConservativeGeorge Riley    LiberalElection declared voidNoLavalJanuary 15, 1902Thomas Fortin    LiberalJoseph-Édouard-Émile Léonard    ConservativeAppointed a judge of the Superior Court of QuebecNoAddingtonJanuary 15, 1902John William Bell    ConservativeMelzar Avery    ConservativeDeathYesDurham WestJanuary 15, 1902Charles Jonas Thornton    LiberalRobert Beith    ConservativeElection declared void.NoSt. JamesJanuary 15, 1902Odilon Desmarais    LiberalJoseph-Édouard-Émile Léonard    LiberalAppointed a judge of the Superior Court of QuebecYesYork WestJanuary 15, 1902Nathaniel Clarke Wallace    ConservativeArchibald Campbell    LiberalDeathNoL'IsletJanuary 15, 1902Arthur Miville Déchêne    LiberalOnésiphore Carbonneau    LiberalCalled to the SenateYesWest Queen'sJanuary 15, 1902Louis Henry Davies    LiberalDonald Farquharson    LiberalAppointed a justice of the Supreme Court of CanadaYesKingstonJanuary 15, 1902Byron Moffatt Britton    LiberalWilliam Harty    LiberalAppointed a judge of the Court of King's Bench for OntarioYesHastings WestJanuary 15, 1902Henry Corby    ConservativeEdward Guss Porter    ConservativeResignationYesBeauceJanuary 8, 1902Joseph Godbout    LiberalHenri Sévérin Béland    LiberalCalled to the SenateYesYorkDecember 28, 1901Alexander Gibson    LiberalAlexander Gibson    LiberalElection declared voidYesEast Queen'sMarch 20, 1901Donald Alexander MacKinnon    LiberalDonald Alexander MacKinnon    LiberalElection declared voidYesBruce NorthMarch 20, 1901Alexander McNeill    Liberal-ConservativeJames Halliday    ConservativeElection declared voidYes

See also List of federal by-elections in Canada

Sources Parliament of Canada–Elected in By-Elections