An election for the leadership of the Liberal Party of Canada was triggered by Michael Ignatieff's announcement on May 3, 2011, of his intention to resign as leader following the party's defeat in the 2011 federal election.
On May 25, 2011, Bob Rae was appointed by Liberal caucus as interim leader.
The party announced Justin Trudeau as its new leader on April 14, 2013, in Ottawa, Ontario.