# 30th Canadian Parliament

The 30th Canadian Parliament was in session from September 30, 1974, until March 26, 1979. The membership was set by the 1974 election on July 8, 1974, and was only changed somewhat due to resignations and by-elections before it was dissolved prior to the 1979 election.
It was controlled by a Liberal Party majority led by Prime Minister Pierre Trudeau and the 20th Canadian Ministry. The Official Opposition was the Progressive Conservative Party, led first by Robert Stanfield, and then by Joe Clark.
The sessions were prorogued (reason unknown currently).
The Speaker was James Jerome. See also the List of Canadian electoral districts 1966-1976 for a list of the ridings in this parliament.
There were four sessions of the 30th Parliament. Queen Elizabeth II opened the 3rd session during her Silver Jubilee visit to Canada.
| Session | Start | End |
| 1st | September 30, 1974 | October 12, 1976 |
| 2nd | October 12, 1976 | October 17, 1977 |
| 3rd | October 18, 1977 | October 10, 1978 |
| 4th | October 11, 1978 | March 26, 1979 |

## Party standings

The party standings as of the election and as of dissolution were as follows:
| Affiliation | Affiliation | House members | House members | Senate members | Senate members |
| Affiliation | Affiliation | 1974 election results | At dissolution | On election day 1974 | At dissolution |
| | Liberal Party of Canada | 141 | 133 | 76 | 73 |
| | Progressive Conservative | 95 | 98 | 18 | 18 |
| | New Democratic Party | 16 | 17 | 0 | 0 |
| | Social Credit Party of Canada | 11 | 9 | 1 | 1 |
| | Independent | 1 | 5 | 2 | 2 |
| | Independent Liberal | 0 | 0 | 1 | 1 |
| Total members | Total members | 264 | 263 | 98 | 92 |
| | Vacant | 0 | 2 | 4 | 9 |
| Total seats | Total seats | 264 | 264 | 102 | 104 |

## Members of the House of Commons

Members of the House of Commons in the 30th parliament arranged by province.

### Newfoundland

| Riding | Member | Political party |
| Bonavista—Trinity—Conception | Dave Rooney | Liberal |
| Burin—Burgeo | Donald Jamieson | Liberal |
| Gander—Twillingate | George Baker | Liberal |
| Grand Falls—White Bay—Labrador | Bill Rompkey | Liberal |
| Humber—St. George's—St. Barbe | Jack Marshall | Progressive Conservative |
| Humber—St. George's—St. Barbe | Fonse Faour (by-election in 1978) | NDP |
| St. John's East | James McGrath | Progressive Conservative |
| St. John's West | Walter Carter | Progressive Conservative |
| St. John's West | John Crosbie (by-election in 1976) | Progressive Conservative |

### Prince Edward Island

| Riding | Member | Political party |
| Cardigan | Daniel J. MacDonald | Liberal |
| Egmont | David MacDonald | Progressive Conservative |
| Hillsborough | Heath MacQuarrie | Progressive Conservative |
| Malpeque | John Angus MacLean | Progressive Conservative |
| Malpeque | Donald Wood (by-election in 1977) | Liberal |

### Nova Scotia

| Riding | Member | Political party |
| Annapolis Valley | Pat Nowlan | Progressive Conservative |
| Cape Breton Highlands—Canso | Allan MacEachen | Liberal |
| Cape Breton—East Richmond | Andrew Hogan | New Democrat |
| Cape Breton—The Sydneys | Robert Muir | Progressive Conservative |
| Central Nova | Elmer MacKay | Progressive Conservative |
| Cumberland—Colchester North | Robert Coates | Progressive Conservative |
| Dartmouth—Halifax East | Michael Forrestall | Progressive Conservative |
| Halifax | Robert Stanfield | Progressive Conservative |
| Halifax—East Hants | Robert McCleave then Howard Crosby* | Both Progressive Conservative |
| South Shore | Lloyd Crouse | Progressive Conservative |
| South Western Nova | Coline Campbell | Liberal |
    * Robert McCleave resigned to become a judge and was replaced by Howard Crosby in a 1978 by-election

### New Brunswick

| Riding | Member | Political party |
| Carleton—Charlotte | Fred McCain | Progressive Conservative |
| Fundy—Royal | Robert Fairweather the Robert Corbett* | Both Progressive Conservative |
| Gloucester | Herb Breau | Liberal |
| Madawaska—Victoria | Eymard Corbin | Liberal |
| Moncton | Leonard C. Jones | Independent |
| Northumberland—Miramichi | Maurice Dionne | Liberal |
| Restigouche | Jean-Eudes Dubé then Maurice Harquail** | Both Liberal |
| Saint John—Lancaster | Mike Landers | Liberal |
| Westmorland—Kent | Roméo LeBlanc | Liberal |
| York—Sunbury | J. Robert Howie | Progressive Conservative |
    * Robert Fairweather resigned to become Canada's first Human Rights Commissioner and was replaced by Robert Corbett in a 1978 by-election
    ** Jean-Eudes Dubé resigned and was replaced by Maurice Harquail in a 1975 by-election

### Quebec

| Riding | Member | Political party |
| Abitibi | Gérard Laprise | Social Credit |
| Ahuntsic | Jeanne Sauvé | Liberal |
| Argenteuil—Deux Montagnes | Francis Fox | Liberal |
| Beauce | Yves Caron | Liberal |
| Beauharnois—Salaberry | Gérald Laniel | Liberal |
| Bellechasse | Adrien Lambert | Social Credit |
| Berthier | Antonio Yanakis | Liberal |
| Brome—Missisquoi | Heward Grafftey | Progressive Conservative |
| Bonaventure—Îles-de-la-Madeleine | Albert Béchard | Liberal |
| Montreal—Bourassa | Jacques Trudel | Liberal |
| Chambly | Bernard Loiselle | Liberal |
| Champlain | René Matte | Social Credit then Independent |
| Charlevoix | Charles Lapointe | Liberal |
| Chicoutimi | Paul Langlois | Liberal |
| Compton | Claude Tessier | Liberal |
| Dollard | Jean-Pierre Goyer | Liberal |
| Drummond | Yvon Pinard | Liberal |
| Duvernay | Yves Demers | Liberal |
| Frontenac | Léopold Corriveau | Liberal |
| Gamelin | Arthur Portelance | Liberal |
| Gaspé | Alexander Cyr | Liberal |
| Gatineau | Gaston Clermont | Liberal |
| Hochelaga | Gérard Pelletier then Jacques Lavoie* | Liberal then Progressive Conservative then Liberal |
| Hull | Joseph Isabelle | Liberal |
| Joliette | Roch La Salle | Progressive Conservative |
| Kamouraska | Charles-Eugène Dionne | Social Credit |
| Labelle | Maurice Dupras | Liberal |
| Lac-Saint-Jean | Marcel Lessard | Liberal |
| Lachine—Lakeshore | Roderick Blaker | Liberal |
| Lafontaine | Claude-André Lachance | Liberal |
| Langelier | Jean Marchand then J. Gilles Lamontagne** | Both Liberal |
| Lapointe | Gilles Marceau | Liberal |
| La Prairie | Ian Watson | Liberal |
| Lasalle—Émard—Côte Saint-Paul | John Campbell | Liberal |
| Laurier | Fernand Leblanc | Liberal |
| Laval | Marcel-Claude Roy | Liberal |
| Lévis | Raynald Guay | Liberal |
| Longueuil | Joseph Mario Jacques Olivier | Liberal |
| Lotbiniere | André-Gilles Fortin then Richard Janelle*** | Both Ralliement Créditiste |
| Louis-Hébert | Albanie Morin then Dennis Dawson† | Both Liberal |
| Maissonneuve—Rosemont | Serge Joyal | Liberal |
| Manicouagan | Gustave Blouin | Liberal |
| Matane | Pierre de Bané | Liberal |
| Mercier | Prosper Boulanger | Liberal |
| Montmorency | Louis Duclos | Liberal |
| Mount Royal | Pierre Trudeau | Liberal |
| Notre-Dame-de-Grâce | Warren Allmand | Liberal |
| Outremont | Marc Lalonde | Liberal |
| Papineau | André Ouellet | Liberal |
| Pontiac | Thomas Lefebvre | Liberal |
| Portneuf | Pierre Bussières | Liberal |
| Québec-Est | Gérard Duquet | Liberal |
| Richelieu | Florian Côté | Liberal |
| Richmond | Léonel Beaudoin | Social Credit |
| Rivière-du-Loup—Témiscouata | Rosaire Gendron | Liberal |
| Rimouski | Eudore Allard | Social Credit |
| Roberval | Charles-Arthur Gauthier | Social Credit |
| Saint-Denis | Marcel Prud'homme | Liberal |
| Saint-Henri | Gérard Loiselle | Liberal |
| Saint-Hyacinthe | Claude Wagner then Marcel Ostiguy†† | Progressive Conservative then Liberal |
| Saint-Jacques | Jacques Guilbault | Liberal |
| Saint-Jean | Walter Smith | Liberal |
| Saint-Maurice | Jean Chrétien | Liberal |
| Saint-Michel | Monique Bégin | Liberal |
| Sainte-Marie | Raymond Dupont | Liberal |
| Shefford | Gilbert Rondeau | Social Credit then Independent |
| Sherbrooke | Irénée Pelletier | Liberal |
| Témiscamingue | Réal Caouette then Gilles Caouette††† | Both Ralliement Créditiste |
| Terrebonne | Joseph-Roland Comtois | Liberal |
| Trois-Rivières Métropolitain | Claude G. Lajoie | Liberal |
| Vaudreuil | Harold Herbert | Liberal |
| Verdun | Bryce Mackasey then Pierre Savard‡ | Both Liberal |
| Villeneuve | Armand Caouette | Social Credit |
| Westmount | Bud Drury then Donald Johnston‡‡ | Both Liberal |
    * Gérard Pelletier left parliament to become ambassador to France he was replaced by Jacques Lavoie on October 14, 1975, after a by-election. On June 14, 1977 Lavoie quite the PC party and crossed the floor to join the Liberals.
    ** Jean Marchand left parliament and was replaced by J. Gilles Lamontagne in a May 25, 1977, by-election
    *** André-Gilles Fortin was killed in a car accident and was replaced by Richard Janelle in an October 16, 1978, by-election.
    † Albanie Morin died in office and was replaced by Dennis Dawson in a May 25, 1977, by-election.
    †† Claude Wagner left parliament to accept a seat in the Senate and was replaced by Marcel Ostiguy in an October 16, 1978, by-election
    ††† Réal Caouette died in office and was replaced by his son Gilles Caouette in a May 24, 1977, by-election
    ‡ Bryce Mackasey resigned from parliament and was replaced by Pierre Savard in a May 24, 1977, by-election
    ‡‡ Bud Drury resigned and was replaced by Donald Johnston in an October 16, 1977, by-election.

### Ontario

| Riding | Member | Political party |
| Algoma | Maurice Foster | Liberal |
| Brant | Derek Blackburn | New Democrat |
| Broadview | John Gilbert then Bob Rae* | Both New Democrat |
| Bruce | Crawford Douglas | Liberal |
| Cochrane | Ralph Stewart | Liberal then Progressive Conservative |
| Davenport | Charles Caccia | Liberal |
| Don Valley | James Gillies | Progressive Conservative |
| Eglinton | Mitchell Sharp then Rob Parker** | Liberal then Progressive Conservative |
| Elgin | John Wise | Progressive Conservative |
| Essex—Windsor | Eugene Whelan | Liberal |
| Etobicoke | Alastair Gillespie | Liberal |
| Fort William | Paul McRae | Liberal |
| Frontenac—Lennox and Addington | Douglas Alkenbrack | Progressive Conservative |
| Glengarry—Prescott—Russell | Denis Éthier | Liberal |
| Greenwood | Andrew Brewin | New Democrat |
| Grenville—Carleton | Walter Baker | Progressive Conservative |
| Grey—Simcoe | Gus Mitges | Progressive Conservative |
| Halton | Frank Philbrook | Liberal |
| Halton—Wentworth | Bill Kempling | Progressive Conservative |
| Hamilton East | John Munro | Liberal |
| Hamilton Mountain | Gus MacFarlane | Liberal |
| Hamilton—Wentworth | Sean O'Sullivan then Geoffrey Scott*** | Both Progressive Conservative |
| Hamilton West | Lincoln Alexander | Progressive Conservative |
| Hastings | Jack Ellis | Progressive Conservative |
| High Park—Humber Valley | Otto Jelinek | Progressive Conservative |
| Huron—Middlesex | Robert McKinley | Progressive Conservative |
| Kenora—Rainy River | John Mercer Reid | Liberal |
| Kent—Essex | Robert Daudlin | Liberal |
| Kingston and the Islands | Flora MacDonald | Progressive Conservative |
| Kitchener | Patrick Flynn | Liberal |
| Lambton—Kent | John Holmes | Progressive Conservative |
| Lanark—Renfrew—Carleton | Paul Dick | Progressive Conservative |
| Leeds | Thomas Cossitt | Progressive Conservative |
| Lincoln | William Andres | Liberal |
| London East | Charles Turner | Liberal |
| London West | Judd Buchanan | Liberal |
| Middlesex—London—Lambton | Larry Condon | Liberal |
| Mississauga | Anthony Abbott | Liberal |
| Niagara Falls | Roger Young | Liberal |
| Nickel Belt | John Rodriguez | New Democrat |
| Nipissing | Jean-Jacques Blais | Liberal |
| Norfolk—Haldimand | William David Knowles | Progressive Conservative |
| Northumberland—Durham | Allan Lawrence | Progressive Conservative |
| Ontario | Norman Cafik | Liberal |
| Oshawa—Whitby | Ed Broadbent | New Democrat |
| Ottawa—Carleton | John Turner then Jean Pigott† | Liberal then Progressive Conservative |
| Ottawa Centre | Hugh Poulin then Robert de Cotret†† | Liberal then Progressive Conservative |
| Ottawa East | Jean-Robert Gauthier | Liberal |
| Ottawa West | Cyril Lloyd Francis | Liberal |
| Oxford | Bruce Halliday | Progressive Conservative |
| Parkdale | Stanley Haidasz then Yuri Shymko††† | Liberal then Progressive Conservative |
| Parry Sound—Muskoka | Stan Darling | Progressive Conservative |
| Peel—Dufferin—Simcoe | William Ross Milne | Liberal |
| Perth—Wilmot | William Jarvis | Progressive Conservative |
| Peterborough | Hugh Faulkner | Liberal |
| Port Arthur | Robert Andras | Liberal |
| Prince Edward—Hastings | George Hees | Progressive Conservative |
| Renfrew North—Nipissing East | Len Hopkins | Liberal |
| Rosedale | Donald Stovel Macdonald then David Crombie‡ | Liberal then Progressive Conservative |
| Sarnia—Lambton | Bud Cullen | Liberal |
| Sault Ste. Marie | Cyril Symes | New Democrat |
| Scarborough East | Martin O'Connell | Liberal |
| Scarborough West | Alan Gray Martin | Liberal |
| Simcoe North | Philip Rynard | Progressive Conservative |
| Spadina | Peter Stollery | Liberal |
| St. Catharines | Gilbert Parent | Liberal |
| St. Paul's | John Roberts | Liberal |
| Stormont—Dundas | Ed Lumley | Liberal |
| Sudbury | James Jerome | Liberal |
| Thunder Bay | B. Keith Penner | Liberal |
| Timiskaming | Arnold Peters | New Democrat |
| Timmins | Jean Roy | Liberal |
| Toronto-Lakeshore | Ken Robinson | Liberal |
| Trinity | Aideen Nicholson | Liberal |
| Victoria—Haliburton | William Scott | Progressive Conservative |
| Waterloo—Cambridge | Max Saltsman | New Democrat |
| Welland | Victor Railton | Liberal |
| Wellington | Frank Maine | Liberal |
| Wellington—Grey—Dufferin—Waterloo | Perrin Beatty | Progressive Conservative |
| Windsor West | Herb Gray | Liberal |
| Windsor—Walkerville | Mark MacGuigan | Liberal |
| York Centre | Bob Kaplan | Liberal |
| York East | David Collenette | Liberal |
| York North | Barney Danson | Liberal |
| York—Scarborough | Robert Stanbury then Paul McCrossan‡‡ | Liberal then Progressive Conservative |
| York—Simcoe | Sinclair Stevens | Progressive Conservative |
| York South | Ursula Appolloni | Liberal |
| York West | James Fleming | Liberal |
    * John Gilbert resigned from parliament in April 1978 to become a judge and was replaced by Bob Rae in an October 16, 1978, by-election.
    ** Mitchell Sharp retired from politics and was replaced by Rob Parker in an October 16, 1978, by-election.
    *** Sean O'Sullivan left parliament to become a priest and was replaced by Geoffrey Scott in an October 16, 1978, by-election.
    † John Turner quit parliament in protest of the government's decision to implement wage and price controls he was replaced by Jean Pigott in an October 18, 1976, by-election.
    †† Hugh Poulin left parliament in April 1978 to become a judge and was replaced by Robert de Cotret in an October 16, 1978, by-election.
    ††† Stanley Haidasz left parliament to be appointed to the Senate he was replaced by Yuri Shymko in an October 16, 1978, by-election.
    ‡ Donald Stovel Macdonald left parliament and was replaced by David Crombie in an October 16, 1978, by-election.
    ‡‡ Robert Stanbury left parliament and was replaced by William Paul McCrossan in an October 16, 1978, by-election.

### Manitoba

| Riding | Member | Political party |
| Brandon—Souris | Walter Dinsdale | Progressive Conservative |
| Churchill | Cecil Smith | Progressive Conservative |
| Dauphin | William Gordon Ritchie | Progressive Conservative |
| Lisgar | Jack Murta | Progressive Conservative |
| Marquette | Craig Stewart | Progressive Conservative |
| Portage | Peter Masniuk | Progressive Conservative |
| Provencher | Jake Epp | Progressive Conservative |
| Selkirk | Dean Whiteway | Progressive Conservative |
| St. Boniface | Joseph-Phillippe Guay then Jack Hare* | Liberal then Progressive Conservative |
| Winnipeg North | David Orlikow | New Democrat |
| Winnipeg North Centre | Stanley Knowles | New Democrat |
| Winnipeg South | James Richardson | Liberal then Independent |
| Winnipeg South Centre | Dan McKenzie | Progressive Conservative |
    * Joseph-Phillippe Guay left parliament and was replaced by Jack Hare in an October 16, 1978, by-election.

### Saskatchewan

| Riding | Member | Political party |
| Assiniboia | Ralph Goodale | Liberal |
| Battleford—Kindersley | Joseph McIsaac | Liberal |
| Mackenzie | Stanley Korchinski | Progressive Conservative |
| Meadow Lake | Bert Cadieu | Progressive Conservative |
| Moose Jaw | Douglas Neil | Progressive Conservative |
| Prince Albert | John Diefenbaker | Progressive Conservative |
| Qu'Appelle—Moose Mountain | Alvin Hamilton | Progressive Conservative |
| Regina East | James Balfour | Progressive Conservative |
| Regina—Lake Centre | Leslie Benjamin | New Democrat |
| Saskatoon—Biggar | Ray Hnatyshyn | Progressive Conservative |
| Saskatoon—Humboldt | Otto Lang | Liberal |
| Swift Current—Maple Creek | Frank Hamilton | Progressive Conservative |
| Yorkton—Melville | Lorne Nystrom | New Democrat |

### Alberta

| Riding | Member | Political party |
| Athabasca | Paul Yewchuk | Progressive Conservative |
| Battle River | Arnold Malone | Progressive Conservative |
| Calgary Centre | Harvie Andre | Progressive Conservative |
| Calgary North | Eldon Woolliams | Progressive Conservative |
| Calgary South | Peter Bawden | Progressive Conservative |
| Crowfoot | Jack Horner | Progressive Conservative then Liberal |
| Edmonton Centre | Steve Paproski | Progressive Conservative |
| Edmonton East | William Skoreyko | Progressive Conservative |
| Edmonton West | Marcel Lambert | Progressive Conservative |
| Edmonton—Strathcona | Douglas Roche | Progressive Conservative |
| Lethbridge | Kenneth Earl Hurlburt | Progressive Conservative |
| Medicine Hat | Bert Hargrave | Progressive Conservative |
| Palliser | Stanley Schumacher | Progressive Conservative then Independent |
| Peace River | Ged Baldwin | Progressive Conservative |
| Pembina | Peter Elzinga | Progressive Conservative |
| Red Deer | Gordon Towers | Progressive Conservative |
| Rocky Mountain | Joe Clark | Progressive Conservative |
| Vegreville | Don Mazankowski | Progressive Conservative |
| Wetaskiwin | Kenneth Schellenberger | Progressive Conservative |

### British Columbia

| Riding | Member | Political party |
| Burnaby—Richmond—Delta | John Reynolds | Progressive Conservative |
| Burnaby—Richmond—Delta | Tom Siddon (by-election on October 16, 1978) | Progressive Conservative |
| Burnaby—Seymour | Marke Raines | Liberal |
| Capilano | Ron Huntington | Progressive Conservative |
| Coast Chilcotin | Jack Pearsall | Liberal |
| Comox—Alberni | Hugh Anderson | Liberal |
| Esquimalt—Saanich | Donald Munro | Progressive Conservative |
| Fraser Valley East | Alexander Patterson | Progressive Conservative |
| Fraser Valley West | Robert Wenman | Progressive Conservative |
| Kamloops—Cariboo | Leonard Marchand | Liberal |
| Kootenay West | Robert Brisco | Progressive Conservative |
| Nanaimo—Cowichan—The Islands | Tommy Douglas | New Democrat |
| New Westminster | Stuart Leggatt | New Democrat |
| Okanagan Boundary | George Whittaker | Progressive Conservative |
| Okanagan—Kootenay | Howard Johnston | Progressive Conservative |
| Prince George—Peace River | Frank Oberle | Progressive Conservative |
| Skeena | Iona Campagnolo | Liberal |
| Surrey—White Rock | Benno Friesen | Progressive Conservative |
| Vancouver Centre | Ron Basford | Liberal |
| Vancouver East | Art Lee | Liberal |
| Vancouver Kingsway | Simma Holt | Liberal |
| Vancouver Quadra | Bill Clarke | Progressive Conservative |
| Vancouver South | John Fraser | Progressive Conservative |
| Victoria | Allan McKinnon | Progressive Conservative |

### Territories

| Riding | Riding | Member | Political party |
| | Northwest Territories | Wally Firth | New Democrat |
| | Yukon | Erik Nielsen | Progressive Conservative |

## By-elections

| By-election | Date | Incumbent | Party | Winner | Party | Cause | Retained |
| Burnaby—Richmond—Delta | October 16, 1978 | John Reynolds | Progressive Conservative | Tom Siddon | Progressive Conservative | Resignation | Yes |
| St. Boniface | October 16, 1978 | Joseph-Philippe Guay | Liberal | Jack Hare | Progressive Conservative | Resignation | No |
| Fundy—Royal | October 16, 1978 | Gordon Fairweather | Progressive Conservative | Robert Corbett | Progressive Conservative | Resignation | Yes |
| Humber—St. George's—St. Barbe | October 16, 1978 | Jack Marshall | Progressive Conservative | Fonse Faour | New Democratic | Resignation | No |
| Halifax—East Hants | October 16, 1978 | Bob McCleave | Progressive Conservative | Howard Edward Crosby | Progressive Conservative | Resignation | Yes |
| Broadview | October 16, 1978 | John Gilbert | New Democratic | Bob Rae | New Democratic | Resignation | Yes |
| Eglinton | October 16, 1978 | Mitchell Sharp | Liberal | Rob Parker | Progressive Conservative | Resignation | No |
| Hamilton—Wentworth | October 16, 1978 | Sean O'Sullivan | Progressive Conservative | Geoff Scott | Progressive Conservative | Resignation | Yes |
| Ottawa Centre | October 16, 1978 | Hugh Poulin | Liberal | Robert de Cotret | Progressive Conservative | Resignation | No |
| Parkdale | October 16, 1978 | Stan Haidasz | Liberal | Yuri Shymko | Progressive Conservative | Resignation | No |
| Rosedale | October 16, 1978 | Donald S. Macdonald | Liberal | David Crombie | Progressive Conservative | Resignation | No |
| York—Scarborough | October 16, 1978 | Robert Stanbury | Liberal | W. Paul McCrossan | Progressive Conservative | Resignation | No |
| Lotbinière | October 16, 1978 | André Fortin | Social Credit | Richard Janelle | Social Credit | Death | Yes |
| Saint-Hyacinthe | October 16, 1978 | Claude Wagner | Progressive Conservative | Marcel Ostiguy | Liberal | Resignation | No |
| Westmount | October 16, 1978 | Bud Drury | Liberal | Don Johnston | Liberal | Resignation | Yes |
| Malpeque | May 24, 1977 | J. Angus MacLean | Progressive Conservative | Donald Wood | Liberal | Resignation | No |
| Langelier | May 24, 1977 | Jean Marchand | Liberal | Gilles Lamontagne | Liberal | Resignation | Yes |
| Louis-Hébert | May 24, 1977 | Albanie Morin | Liberal | Dennis Dawson | Liberal | Death | Yes |
| Témiscamingue | May 24, 1977 | Réal Caouette | Social Credit | Gilles Caouette | Social Credit | Death | Yes |
| Terrebonne | May 24, 1977 | Joseph-Roland Comtois | Liberal | Joseph-Roland Comtois | Liberal | Resignation | Yes |
| Verdun | May 24, 1977 | Bryce Mackasey | Liberal | Raymond Savard | Liberal | Resignation | Yes |
| St. John's West | October 18, 1976 | Walter Carter | Progressive Conservative | John C. Crosbie | Progressive Conservative | Resignation | Yes |
| Ottawa—Carleton | October 18, 1976 | John Turner | Liberal | Jean Pigott | Progressive Conservative | Resignation | No |
| Restigouche | October 14, 1975 | Jean-Eudes Dubé | Liberal | Maurice Harquail | Liberal | Resignation | Yes |
| Hochelaga | October 14, 1975 | Gérard Pelletier | Liberal | Jacques Lavoie | Progressive Conservative | Resignation | No |