2012–13 LHMAAAQ season

This is the 2012-13 Ligue de hockey midget AAA du Quebec season.

Preliminary Round

 * Riverains du Collège Charles-Lemoyne defeated Phénix du Collège Esther-Blondin 3 games to 0
 * Albatros du Collège Notre-Dame defeated Lions du Lac St-Louis 3 games to 2
 * Estacades de Trois-Rivières defeated Vikings de Saint-Eustache 3 games to 1
 * Élites de Jonquière defeated Commandeurs de Lévis 3 games to 1

Quarterfinals

 * Rousseau Royal de Laval-Montréal defeated Riverains du Collège Charles-Lemoyne 4 games to 2
 * Blizzard du Séminaire Saint-François defeated Albatros du Collège Notre-Dame 4 games to 2
 * Grenadiers de Châteauguay defeated Élites de Jonquière 4 games to 1
 * Gaulois du Collège Antoine-Girouard defeated Estacades de Trois-Rivières 4 games to 2

Semifinals

 * Rousseau Royal de Laval-Montréal defeated Gaulois du Collège Antoine-Girouard 4 games to 3
 * Blizzard du Séminaire Saint-François defeated Grenadiers de Châteauguay 4 games to 3

Final

 * Rousseau Royal de Laval-Montréal defeated Blizzard du Séminaire Saint-François 4 games to 0

The Rousseau Royal de Laval-Montréal advanced to the 2013 Telus Cup.