Joseph Philippe Pierre Yves Elliott Trudeau (October 18, 1919 – September 28, 2000) was a Canadian politician, lawyer, jurist, academic, author, and journalist who served as the 15th prime minister of Canada from 1968 to 1979 and from 1980 to 1984. Between his non-consecutive terms as prime minister from 1979 to 1980, he served as the leader of the Opposition. He led the Liberal Party from 1968 until 1984.
Trudeau was born and raised in Outremont, Quebec, and studied politics and law. In 1950, he co-founded Cité Libre and rose to prominence as a labour activist in Quebec politics by opposing the conservative Union Nationale government. Trudeau was also an associate professor of law at the Université de Montréal. He was originally part of the social democratic New Democratic Party (NDP), but then joined the Liberal Party in 1965 on the belief that the NDP could not achieve power. In the election that year, he was elected to the House of Commons, and was quickly appointed as prime minister Lester B. Pearson's parliamentary secretary. Trudeau was minister of justice and attorney general from 1967 to 1968, during which time he liberalized divorce and abortion laws and decriminalized homosexuality. His outgoing personality and charisma caused a sensation, termed "Trudeaumania", which helped him win the leadership of the Liberal Party in 1968. He then succeeded Pearson and became prime minister of Canada.
From the late 1960s until the mid-1980s, Trudeau dominated the Canadian political scene. After his appointment as prime minister, he led the Liberals to victory in the 1968, 1972, and 1974 federal elections, before narrowly losing in 1979. He won a fourth election victory shortly afterwards, in 1980. Trudeau is the most recent prime minister to win four federal elections (having won three majority governments and one minority government) and to serve non-consecutive terms. His tenure of 15 years and 164 days makes him the third longest-serving prime minister in Canadian history, behind John A. Macdonald and William Lyon Mackenzie King.
As prime minister, Trudeau pioneered official bilingualism and multiculturalism. Amid the Quebec sovereignty movement, he invoked the War Measures Act in response to the 1970 October Crisis and later led the federalist campaign to victory in the 1980 Quebec sovereignty-association referendum. In economic policy, he introduced the capital gains tax, expanded social programs, sharply increased deficit spending, and responded to the 1970s recession through wage and price controls. In a bid to move the Liberal Party towards economic nationalism, Trudeau established Petro-Canada and launched the National Energy Program, both of which generated significant controversy in oil-rich Western Canada and led to a rise in what was called "Western alienation". Trudeau's government also converted Canada to the metric system, created Via Rail, and enacted the Access to Information Act and the Canada Health Act. In foreign policy, Trudeau reduced alignment with the United States, maintained cordial relations with the Soviet Union, and developed strong ties with China and Cuban leader Fidel Castro, which put him at odds with other Western capitalist states. He also oversaw Canada's entry into the G7 forum. In 1982, Trudeau patriated the Constitution of Canada and established the Canadian Charter of Rights and Freedoms with the Constitution Act, 1982, which achieved full Canadian sovereignty.
Trudeau retired from politics shortly before the 1984 federal election. In his retirement, he practised law at the Montreal law firm of Heenan Blaikie. He also spoke out against the Meech Lake and Charlottetown accords (which proposed granting Quebec certain concessions), arguing they would strengthen Quebec nationalism. Trudeau died in 2000, aged 80. He is ranked highly among scholars in historical rankings of Canadian prime ministers, but remains a divisive figure in Canadian politics. Critics accused him of arrogance, economic mismanagement, and unduly centralizing Canadian decision-making to the detriment of the culture of Quebec and the economy of the Prairies, while admirers praised what they considered to be the force of his intellect and his political acumen which maintained national unity throughout the Quebec sovereignty movement. Trudeau's eldest son, Justin Trudeau, served as prime minister of Canada from 2015 to 2025, and was the first prime minister to be the child of a previous prime minister.
The Trudeau family can be traced to Marcillac-Lanville in France in the 16th century and to a Robert Truteau (1544–1589). In 1659, the first Trudeau to arrive in Canada was Étienne Trudeau or Truteau (1641–1712), a carpenter and home builder from La Rochelle.
Pierre Trudeau was born at home in Outremont, Quebec, on October 18, 1919, to Charles-Émile "Charley" Trudeau (1887–1935), a French-Canadian businessman and lawyer, and Grace Elliott, who was of mixed Scottish and French-Canadian descent. He had an older sister named Suzette and a younger brother named Charles Jr. Trudeau remained close to both siblings for his entire life. Trudeau's paternal grandparents were French-speaking Quebec farmers. His father had acquired the B&A gas station chain (now defunct), some "profitable mines, the Belmont amusement park in Montreal and the Montreal Royals, the city's minor-league baseball team", by the time Trudeau was fifteen. When his father died in Orlando, Florida, on April 10, 1935, Trudeau and each of his siblings inherited $5,000 (equivalent to $110,000 in 2025), a considerable sum at that time, which meant that he was financially secure and independent. His mother, Grace, "doted on Pierre" and he remained close to her throughout her long life. After her husband died, she left the management of her inheritance to others and spent a lot of her time working for the Roman Catholic Church and various charities, travelling frequently to New York City, Florida, Europe, and Maine, sometimes with her children. Already in his late teens, Trudeau was "directly involved in managing a large inheritance".
From the age of six until twelve, Trudeau attended the primary school Académie Querbes, in Outremont, where he became immersed in the Catholic religion. The school, which was for both English and French Catholics, was an exclusive school with very small classes and he excelled in mathematics and religion. From his earliest years, Trudeau was fluently bilingual, which would later prove to be a "big asset for a politician in bilingual Canada." As a teenager, he attended the Jesuit French-language Collège Jean-de-Brébeuf, a prestigious secondary school known for educating elite francophone families in Quebec.
In his seventh and final academic year, 1939–1940, Trudeau focused on winning a Rhodes Scholarship. In his application, he wrote that he had prepared for public office by studying public speaking and publishing many articles in Brébeuf. His letters of recommendations praised him highly. Father Boulin, who was the head of the college, said that during Trudeau's seven years at the college (1933–1940), he had won a "hundred prizes and honourable mentions" and "performed with distinction in all fields". Trudeau graduated from Collège Jean-de-Brébeuf in 1940 at the age of twenty-one.
Trudeau did not win the Rhodes Scholarship. He consulted several people on his options, including Henri Bourassa, the economist Edmond Montpetit, and Father Robert Bernier, a Franco-Manitoban. Following their advice, he chose a career in politics and a degree in law at the Université de Montréal.
In its obituary, The Economist described Trudeau as "parochial as a young man", who "dismissed" the Second World War "as a squabble between the big powers, although he later regretted 'missing one of the major events of the century'." In his 1993 Memoir, Trudeau wrote that the outbreak of the Second World War in September 1939 and his father's death were the two "great bombshells" that marked his teenage years. In his first year at university, the prime topics of conversation were the Battle of France, the Battle of Britain, and the London blitz. He wrote that in the early 1940s, when he was in his early twenties, he thought, "So there was a war? Tough. It wouldn't stop me from concentrating on my studies so long as that was possible...[I]f you were a French Canadian in Montreal [at that time], you did not automatically believe that this was a just war. In Montreal in the early 1940s, we still knew nothing about the Holocaust and we tended to think of this war as a settling of scores among the superpowers."