1984 Canadian federal election

1984 Canadian federal election

← 1980 September 4, 1984 1988 →
← outgoing members elected members →
282 seats in the House of Commons 142 seats needed for a majority
Opinion polls
Turnout	75.3%[1] (6.0pp)
First party Second party Third party   Leader Brian Mulroney John Turner Ed Broadbent Party Progressive Conservative Liberal New Democratic Leader since June 11, 1983 June 16, 1984 July 7, 1975 Leader's seat Manicouagan Ran in Vancouver Quadra (won) Oshawa Last election 103 seats, 32.45% 147 seats, 44.34% 32 seats, 19.77% Seats before 100 135 31 Seats won 211 40 30 Seat change 111 95 1 Popular vote 6,278,818 3,516,486 2,359,915 Percentage 50.03% 28.02% 18.81% Swing 17.59pp 16.32pp 0.97pp
Results by electoral district Results by province and territory
The Canadian parliament after the 1984 election
Prime Minister before election John Turner Liberal Prime Minister after election Brian Mulroney Progressive Conservative

The 1984 Canadian federal election was held on September 4, 1984, to elect members to the House of Commons of the 33rd Parliament of Canada.

In the largest landslide victory in Canadian political history, the Progressive Conservative Party (PC Party), led by Brian Mulroney, defeated the incumbent governing Liberal Party led by Prime Minister John Turner. This was the first election since 1958 in which the PC Party won a majority government.

Mulroney's victory came as a result of his building of a 'grand coalition' that comprised social conservatives from the West, Red Tories from the East, Quebec nationalists, and fiscal conservatives. Mulroney's PCs won the largest number of seats in Canadian history at 211. Winning 74.8 percent of the seats in the House of Commons, meant they won the second-largest percentage of seats in Canadian history. Only Progressive Conservative Prime Minister John Diefenbaker's triumph in the 1958 federal election, at 78.5 percent, was higher. This was the last time that the winning party won every province and territory and the last time that the winning party received over 50 percent of the national popular vote. The Liberals suffered what at that time was the worst defeat for a governing party at the federal level (in terms of percentage of seats). The New Democratic Party (NDP) saw no significant change to their seat count.

The election marked the end of the Liberals' long dominance of federal politics in Quebec, a province which had been the bedrock of Liberal support for almost a century. They would not win a majority of Quebec seats again until three decades later in 2015.