New Democratic Party •
Stanley Knowles 1962–1984 •
Ian Deans 1984–1986 (acting 1981–1984) •
Nelson Riis 1986–1994 •
Len Taylor 1994–1996 •
Bill Blaikie 1996–2003 •
Libby Davies 2003–2011 •
Official Opposition 2011–2015 •
Peter Julian 2015–2016 •
Murray Rankin 2016–2018 •
Ruth Ellen Brosseau 2018–2019 •
Peter Julian 2019–2025 •
Alexandre Boulerice 2025–2026 •
Heather McPherson 2026–present
Social Credit Party •
Gilles Caouette 1972–1974 •
André-Gilles Fortin 1974–1976 •
Charles-Arthur Gauthier 1976–1980
Reform Party •
Elwin Hermanson 1993–1995 •
Raymond Speaker 1995–1997 •
Official Opposition after 1997 Progressive Conservative Party •
Government or Official Opposition before 1993 •
None 1993–1997 •
Peter MacKay 1997–2002 •
Loyola Hearn 2002–2004
Bloc Quebecois •
Official Opposition 1993–1997 •
Michel Gauthier 1997–2007 •
Pierre Paquette 2007–2011 •
Louis Plamondon 2011–2013 •
André Bellavance 2013–2014 •
Jean-François Fortin 2014 •
Louis Plamondon 2014–2015 •
Luc Thériault 2015–2018 •
Mario Beaulieu 2018 •
Luc Thériault 2018–2019 •
Alain Therrien 2019–2025 •
Christine Normandin 2025–present
Liberal Party •
Government or Official Opposition before 2011 •
Marc Garneau 2011–2012 •
Dominic LeBlanc 2012–2015 ==See also==