This is the 2019-20 Ligue de Hockey Senior du Richelieu season. This is the league's 15th season.
- The The Marieville Red Knights are no longer in the league after having dropped out during the previous season.
- The Acton Vale Trackvale are no longer in the league
- The Waterloo Maroons 2.0 join the league from the Ligue de Hockey Senior AAA du Quebec
- The St-Roch-de-l'Achigan HC is renamed the JC Perreault HC
- The Paramount Hockey HC is added to the league, the team would later be renamed the Hockey Expert Vaudreuil-Soulanges.
- The St-Hilaire Riverains are no longer in the league.
|JC Perreault HC||21||13||8||0||106||99||26|
|Farnham Cuisine Action||21||12||8||1||110||109||25|
|Hockey Expert Vaudreuil-Soulanges||21||8||11||2||87||107||18|
|Waterloo Maroons 2.0||21||8||11||2||96||108||18|
|Varennes Merchante Viree||21||7||14||0||92||117||14|
note: Hockey Expert Vaudreuil-Soulanges finished ahead of Waterloo and Bedford based on regulation time wins (8-7-7), then Waterloo finished ahead of Bedford by winning the season series 2 games to 1.
All eight teams qualified for the playoffs. All rounds are best-of-seven.
- St-Hubert Mustangs defeated Varennes Merchante Viree 4 games to none
- JC Perreault HC defeated Bedford Bulls 4 games to 3
- Waterloo Maroons 2.0 defeated Farnham Cuisine Action 4 games to 2
- St-Gabriel Loups defeated Hockey Expert Vaudreuil-Soulanges 4 games to 2
- JC Perreault HC lead St-Gabriel Loups 2 games to none
- St-Hubert Mustangs defeated Waterloo Maroons 2.0 2 games to none
Playoffs suspended March 12th due to COVID-19 pandemic