Justin Pierre James Trudeau (; French: [ʒystɛ̃ tʁydo]; born December 25, 1971) is a Canadian politician serving as the 23rd Prime Minister of Canada since 2015 and Leader of the Liberal Party since 2013. Trudeau is the second-youngest Canadian Prime Minister after Joe Clark; he is also the first to be related to a previous holder of the post, as the eldest son of Pierre Trudeau.
Born in Ottawa, Trudeau attended Collège Jean-de-Brébeuf and graduated from McGill University in 1994 and the University of British Columbia in 1998. He gained a high public profile in October 2000, when he delivered a eulogy at his father's state funeral. After graduating, he worked as a teacher in Vancouver, British Columbia. He completed one year of an engineering program at Montreal's École Polytechnique, from 2002 to 2003, and one year of a master's program in environmental geography at McGill University, from 2004 to 2005. He advocated for various causes, and portrayed a cousin in the 2007 TV miniseries The Great War.
In the 2008 federal election, he was elected to represent the riding of Papineau in the House of Commons. In 2009, he was appointed the Liberal Party's critic for youth and multiculturalism, and the following year, became critic for citizenship and immigration. In 2011, he was appointed as critic for secondary education and youth and amateur sport. Trudeau won the leadership of the Liberal Party in April 2013 and went on to lead his party to victory in the 2015 federal election, moving the third-placed Liberals from 36 seats to 184 seats, the largest-ever numerical increase by a party in a Canadian general election.