By-elections to the 34th Canadian Parliament were held to fill vacancies in the House of Commons of Canada between the 1988 federal election and the 1993 federal election. The Progressive Conservative Party of Canada led a majority government for the entirety of the 34th Canadian Parliament, though their number did decrease from by-elections.

Sixteen seats became vacant during the life of the Parliament. Six of these vacancies were filled through by-elections.

By-election Date Incumbent Party Winner Party Cause Retained
Beauséjour December 10, 1990 Fernand Robichaud      Liberal Jean Chrétien      Liberal Resignation to provide a seat for Chrétien Yes
York North December 10, 1990 Maurizio Bevilacqua      Liberal Maurizio Bevilacqua      Liberal Election declared void Yes
Oshawa August 13, 1990 Ed Broadbent      New Democratic Mike Breaugh      New Democratic Resignation Yes
Laurier—Sainte-Marie August 13, 1990 Jean-Claude Malépart      Liberal Gilles Duceppe      Independent Death No
Chambly February 12, 1990 Richard Grisé      Progressive Conservative Phil Edmonston      New Democratic Resignation No
Beaver River March 13, 1989 John Dahmer      Progressive Conservative Deborah Grey      Reform Death (cancer) No

See also