This is the 2018-19 Ligue de Hockey Senior du Richelieu season. This is the league's 14th season.
- The St-Jean-sur-Richelieu Patriotes are no longer in the league after having dropped out during the previous season.
- The Beloeil Riverains relocated to St-Hillaire and are renamed the St-Hilaire Riverains.
|Acton Vale Trackvale||20||10||9||1||100||91||21|
|Farnham Cuisine Action||20||9||8||3||89||100||21|
|Varennes Merchante Viree||20||8||10||2||86||100||18|
|Marieville Red Knights||20||6||14||0||71||120||12|
Note: The Marieville Red Knights forfeited their final regular season game and did not participate in the playoffs.
Eight teams qualified for the playoffs. All rounds are best-of-seven.
- St-Hubert Mustangs defeated St-Hilaire Riverains 4 games to none
- St-Gabriel Loups defeated Varennes Merchante Viree 4 games to 3
- St-Roch-de-l'Achigan HC defeated Farnham Cuisine Action 4 games to 2
- Acton Vale Trackvale defeated Bedford Bulls 4 games to 2
- Acton Vale Trackvale defeated St-Hubert Mustangs 4 games to 2
- St-Roch-de-l'Achigan HC defeated St-Gabriel Loups 4 games to 1