2017–18 LHMAAAQ season

This is the 2017-18 Ligue de hockey midget AAA du Quebec season.

Preliminary Round

 * Cantonniers de Magog defeated Forestiers d'Amos 3 games to 0
 * Blizzard du Séminaire Saint-François defeated Rousseau Royal de Laval-Montréal 3 games to 0
 * Vikings de Saint-Eustache defeated Albatros du Collège Notre-Dame 3 games to 0
 * Commandeurs de Lévis defeated Riverains du Collège Charles-Lemoyne 3 games to 0
 * Estacades de Trois-Rivières defeated Phénix du Collège Esther-Blondin 3 games to 0
 * L'Intrépide de Gatineau defeated Lions du Lac St-Louis 3 games to 2
 * Grenadiers de Châteauguay defeated Gaulois de Saint-Hyacinthe 3 games to 0

Quarterfinals

 * Cantonniers de Magog defeated Élites de Jonquière 3 gaems to 1
 * Blizzard du Séminaire Saint-François defeated Grenadiers de Châteauguay 3 games to 0
 * Vikings de Saint-Eustache defeated L'Intrépide de Gatineau 3 games to 1
 * Estacades de Trois-Rivières defeated Commandeurs de Lévis 3 games to 0

Semifinals

 * Cantonniers de Magog defeated Grenadiers de Châteauguay 4 games to 3
 * Estacades de Trois-Rivières defeated Vikings de Saint-Eustache 4 games to 0

Final

 * Cantonniers de Magog defeated Estacades de Trois-Rivières 4 games to 0

The Cantonniers de Magog advanced to the 2018 Telus Cup.