By-elections
| By-election | Year | Incumbent | Party | Winner | Party | Cause | Retained | ||
|---|---|---|---|---|---|---|---|---|---|
| Lac-Saint-Jean | 1988 | Clément Côté | Progressive Conservative | Lucien Bouchard | Progressive Conservative | Resignation | Yes | ||
| St. John's East | 1987 | James A. McGrath | Progressive Conservative | Jack Harris | New Democratic Party | Resignation | No | ||
| Hamilton Mountain | 1987 | Ian Deans | New Democratic Party | Marion Dewar | New Democratic Party | Resignation | Yes | ||
| Yukon | 1987 | Erik Nielsen | Progressive Conservative | Audrey McLaughlin | New Democratic Party | Resignation | No | ||
| Pembina | 1986 | Peter Elzinga | Progressive Conservative | Walter van de Walle | Progressive Conservative | Resignation | Yes | ||
| Saint-Maurice | 1986 | Jean Chrétien | Liberal | Gilles Grondin | Liberal | Resignation | Yes | ||
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