Template:1986 Quebec provincial by-elections/Saint-Laurent

Quebec provincial by-election, January 20, 1986}|{{{election}}}|January 20, 1986}} Quebec general election}}: Saint-Laurent (provincial electoral district)}|Saint-Laurent}}
Party	Candidate	Votes	%	±%
Total valid votes			19,372	98.65	–
Total rejected ballots			266	1.35	–
Turnout			19,638	46.19	−26.22
Electors on the lists			42,514	–	–
Source: Official Results, Le Directeur général des élections du Québec.