By-elections to the 26th Canadian Parliament were held to fill vacancies in the House of Commons of Canada between the 1963 federal election and the 1965 federal election. The Liberal Party of Canada led a minority government for the entirety of the 26th Canadian Parliament, with no change from by-elections.

Six vacant seats were filled through by-elections. By-election Date Incumbent Party Winner Party Cause RetainedWestmorlandNovember 9, 1964Sherwood Rideout    LiberalMargaret Rideout    LiberalDeathYesWaterloo SouthNovember 9, 1964Gordon Chaplin    Progressive ConservativeMax Saltsman    New DemocraticDeathNoNipissingJune 22, 1964Jack Garland    LiberalCarl Legault    LiberalDeathYesSaskatoonJune 22, 1964Henry Frank Jones    Progressive ConservativeEloise Jones    Progressive ConservativeDeathYesLaurierFebruary 10, 1964Lionel Chevrier    LiberalFernand-E. Leblanc    LiberalResignationYesSaint-DenisFebruary 10, 1964Azellus Denis    LiberalMarcel Prud'Homme    LiberalResignationYes

See also List of federal by-elections in Canada

Sources Parliament of Canada–Elected in By-Elections