2015 Canadian federal election

The 2015 Canadian federal election (formally the 42nd Canadian general election) was held on October 19, 2015, to elect members to the House of Commons of the 42nd Canadian Parliament and the Prime Minister of Canada. The 2015 election were issued by Governor General David Johnston on August 4.

2015 Canadian federal election

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← List of House members of the 41st Parliament of Canada List of House members of the 42nd Parliament of Canada →
All 338 seats in the House of Commons 170 seats needed for a majority
Opinion polls
Turnout	68.3%[1] (7.2pp)
First party Second party Third party   Leader Justin Trudeau Stephen Harper Thomas Mulcair Party Liberal Conservative New Democratic Leader's seat Papineau Calgary Heritage Outremont Last election 34 seats, 18.91% 166 seats, 39.62% 103 seats, 30.63% Seats before 36 159 95 Seats won 184 99 44 Seat change 148 60 51 Popular vote 6,943,276 5,613,614 3,470,350 Percentage 39.47% 31.89% 19.71% Swing 20.56pp 7.73pp 10.92pp   Fourth party Fifth party   Leader Gilles Duceppe Elizabeth May Party Bloc Québécois Green Leader's seat Ran in Laurier—Sainte-Marie (lost) Saanich—Gulf Islands Last election 4 seats, 6.04% 1 seat, 3.91% Seats before 2 2 Seats won 10 1 Seat change 8 1 Popular vote 821,144 602,944 Percentage 4.66% 3.45% Swing 1.38pp 0.46pp
Popular vote by province, with graphs indicating the number of seats won within that province. (Because seats are awarded by the popular vote in each riding, the provincial popular vote does not necessarily translate to more seats.)
Prime Minister before election Stephen Harper Conservative Prime Minister after election Justin Trudeau Liberal

The election was one of the longest in Canadian history.^[2] It was also the first time since the 1979 election that a Prime Minister attempted to remain in office into a fourth consecutive Parliament and the first time since the 1980 election that someone attempted to win a fourth term of any kind as Prime Minister.

The Liberal Party, led by Justin Trudeau, won 184 seats, allowing it to form a majority government with Trudeau becoming the next Prime Minister.^[3] Trudeau was sworn in on November 4, 2015.^[4]