Template:1990 Saint-Leonard municipal election/Councillor, Ward Three


 * style="text-align:left;" colspan=2 | Parti Municipal
 * style="text-align:left;" | Mario Battista
 * style="text-align:right;" | elected
 * style="text-align:right;" |
 * colspan=5|Source: Irwin Block, "St. Leonard votes for change as Cote St. Luc re-elects Lang," Montreal Gazette, 5 November 1990, A5.
 * colspan=5|Source: Irwin Block, "St. Leonard votes for change as Cote St. Luc re-elects Lang," Montreal Gazette, 5 November 1990, A5.
 * colspan=5|Source: Irwin Block, "St. Leonard votes for change as Cote St. Luc re-elects Lang," Montreal Gazette, 5 November 1990, A5.