Changes in Membership
41st Parliament
Parliament is dissolved.
The party standings in the House of Commons shown on this page are displaying the membership at the time of dissolution.
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55 Results
| Name | Constituency | Details | Date |
|---|---|---|---|
| Layton, Hon. Jack | Toronto—Danforth | Deceased — NDP | Monday, August 22, 2011 |
| Goldring, Peter | Edmonton East | Change of political affiliation — Conservative to Independent Conservative | Monday, December 5, 2011 |
| St-Denis, Lise | Saint-Maurice—Champlain | Change of political affiliation — NDP to Liberal | Tuesday, January 10, 2012 |
| Scott, Craig | Toronto—Danforth | Elected at by-election — NDP | Monday, March 19, 2012 |
| Hyer, Bruce | Thunder Bay—Superior North | Change of political affiliation — NDP to Independent | Monday, April 23, 2012 |
| Richardson, Lee | Calgary Centre | Resigned as Member of Parliament — Conservative | Wednesday, June 6, 2012 |
| Oda, Hon. Bev | Durham | Resigned as Member of Parliament — Conservative | Tuesday, July 31, 2012 |
| Savoie, Denise | Victoria | Resigned as Member of Parliament — NDP | Friday, August 31, 2012 |
| Crockatt, Joan | Calgary Centre | Elected at by-election — Conservative | Monday, November 26, 2012 |
| O'Toole, Hon. Erin | Durham | Elected at by-election — Conservative | Monday, November 26, 2012 |
| Rankin, Murray | Victoria | Elected at by-election — NDP | Monday, November 26, 2012 |
| Patry, Claude | Jonquière—Alma | Change of political affiliation — NDP to Bloc Québécois | Thursday, February 28, 2013 |
| Penashue, Hon. Peter | Labrador | Resigned as Member of Parliament — Conservative | Thursday, March 14, 2013 |
| Jones, Yvonne | Labrador | Elected at by-election — Liberal | Monday, May 13, 2013 |
| Coderre, Hon. Denis | Bourassa | Resigned as Member of Parliament — Liberal | Sunday, June 2, 2013 |
| Rathgeber, Brent | Edmonton—St. Albert | Change of political affiliation — Conservative to Independent | Thursday, June 6, 2013 |
| Goldring, Peter | Edmonton East | Change of political affiliation — Independent Conservative to Conservative | Monday, June 10, 2013 |
| Toews, Hon. Vic | Provencher | Resigned as Member of Parliament — Conservative | Tuesday, July 9, 2013 |
| Rae, Hon. Bob | Toronto Centre | Resigned as Member of Parliament — Liberal | Wednesday, July 31, 2013 |
| Tweed, Merv | Brandon—Souris | Resigned as Member of Parliament — Conservative | Saturday, August 31, 2013 |
| Mourani, Maria | Ahuntsic | Change of political affiliation — Bloc Québécois to Independent | Wednesday, September 18, 2013 |
| Del Mastro, Dean | Peterborough | Change of political affiliation — Conservative to Conservative Independent | Monday, September 30, 2013 |
| Menzies, Hon. Ted | Macleod | Resigned as Member of Parliament — Conservative | Saturday, November 9, 2013 |
| Falk, Ted | Provencher | Elected at by-election — Conservative | Monday, November 25, 2013 |
| Maguire, Larry | Brandon—Souris | Elected at by-election — Conservative | Monday, November 25, 2013 |
| Dubourg, Emmanuel | Bourassa | Elected at by-election — Liberal | Monday, November 25, 2013 |
| Freeland, Hon. Chrystia | Toronto Centre | Elected at by-election — Liberal | Monday, November 25, 2013 |
| Hyer, Bruce | Thunder Bay—Superior North | Change of political affiliation — Independent to Green Party | Friday, December 13, 2013 |
| Jean, Brian | Fort McMurray—Athabasca | Resigned as Member of Parliament — Conservative | Friday, January 17, 2014 |
| Chow, Olivia | Trinity—Spadina | Resigned as Member of Parliament — NDP | Wednesday, March 12, 2014 |
| Karygiannis, Hon. Jim | Scarborough—Agincourt | Resigned as Member of Parliament — Liberal | Tuesday, April 1, 2014 |
| Flaherty, Hon. Jim | Whitby—Oshawa | Deceased — Conservative | Thursday, April 10, 2014 |
| Perreault, Manon | Montcalm | Change of political affiliation — NDP to Independent | Friday, June 6, 2014 |
| Barlow, John | Macleod | Elected at by-election — Conservative | Monday, June 30, 2014 |
| Yurdiga, David | Fort McMurray—Athabasca | Elected at by-election — Conservative | Monday, June 30, 2014 |
| Chan, Arnold | Scarborough—Agincourt | Elected at by-election — Liberal | Monday, June 30, 2014 |
| Vaughan, Adam | Trinity—Spadina | Elected at by-election — Liberal | Monday, June 30, 2014 |
| Fortin, Jean-François | Haute-Gaspésie—La Mitis—Matane—Matapédia | Change of political affiliation — Bloc Québécois to Independent | Tuesday, August 12, 2014 |
| Hassainia, Sana | Verchères—Les Patriotes | Change of political affiliation — NDP to Independent | Wednesday, August 20, 2014 |
| Bellavance, André | Richmond—Arthabaska | Change of political affiliation — Bloc Québecois to Independent | Monday, August 25, 2014 |
| Merrifield, Hon. Rob | Yellowhead | Resigned as Member of Parliament — Conservative | Wednesday, September 17, 2014 |
| Fortin, Jean-François | Haute-Gaspésie—La Mitis—Matane—Matapédia | Change of political affiliation — Independent to Forces et Démocratie | Tuesday, October 21, 2014 |
| Larose, Jean-François | Repentigny | Change of political affiliation — NDP to Forces et Démocratie | Tuesday, October 21, 2014 |
| Andrews, Scott | Avalon | Change of political affiliation — Liberal to Independent | Wednesday, November 5, 2014 |
| Pacetti, Massimo | Saint-Léonard—Saint-Michel | Change of political affiliation — Liberal to Independent | Wednesday, November 5, 2014 |
| Del Mastro, Dean | Peterborough | Resigned as Member of Parliament — Conservative Independent | Wednesday, November 5, 2014 |
| Eglinski, Jim | Yellowhead | Elected at by-election — Conservative | Monday, November 17, 2014 |
| Perkins, Pat | Whitby—Oshawa | Elected at by-election — Conservative | Monday, November 17, 2014 |
| Thibeault, Glenn | Sudbury | Change of political affiliation — NDP to Independent | Monday, January 5, 2015 |
| Thibeault, Glenn | Sudbury | Resigned as Member of Parliament — Independent | Monday, January 5, 2015 |
| Adams, Eve | Mississauga—Brampton South | Change of political affiliation — CPC to Liberal | Monday, February 9, 2015 |
| Baird, Hon. John | Ottawa West—Nepean | Resigned as Member of Parliament — Conservative | Monday, March 16, 2015 |
| Lunney, James | Nanaimo—Alberni | Change of political affiliation — CPC to Independent | Tuesday, March 31, 2015 |
| Brown, Patrick | Barrie | Resigned as Member of Parliament — Conservative | Thursday, May 14, 2015 |
| Nunez-Melo, José | Laval | Change of political affiliation — NDP to Independent | Sunday, August 2, 2015 |
Information on changes in membership is available beginning with the 36th Parliament.
Additional historical information
may be available in PARLINFO.
Last Modified: Monday, April 28, 2025