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John Diefenbaker

John Diefenbaker was a Canadian lawyer and politician who served as the 13th prime minister of Canada from 1957 to 1963.

By Ethan Anderson| Reviewed by Olivia Bennett, Standards & Fact-Checking Lead| Updated July 26, 2026|2 min read| Fact-checked

John Diefenbaker was a Canadian lawyer and politician who served as the 13th prime minister of Canada from 1957 to 1963. As leader of the Progressive Conservative Party, he is known for the Canadian Bill of Rights, extending voting rights to First Nations and Inuit peoples, and appointing Canada’s first female cabinet minister. He was a prominent and sometimes divisive figure in Canadian politics.

John George Diefenbaker was born in Neustadt, Ontario, in 1895 and later built his legal career in Saskatchewan. Before entering federal politics, he became known as a criminal defence lawyer and public speaker.

Political career

Diefenbaker was elected to the House of Commons in 1940 and became leader of the Progressive Conservative Party in 1956. He led the party to victory in the 1957 and 1958 federal elections and served as prime minister until 1963.

Prime ministership

As prime minister, Diefenbaker’s government passed the Canadian Bill of Rights, expanded voting rights to First Nations and Inuit peoples, and appointed the first female federal cabinet minister. His administration also cancelled the Avro Arrow project and faced disputes over defence policy and nuclear weapons.

Legacy

Diefenbaker is remembered for his emphasis on civil rights, his populist style, and his strong identification with northern and western Canada. His leadership also divided the Progressive Conservative Party and remains a major subject in Canadian political history.

Key facts

  • Diefenbaker served as Canada’s 13th prime minister from 1957 to 1963.
  • His government passed the Canadian Bill of Rights in 1960.
  • He extended the federal vote to First Nations and Inuit peoples.
  • He appointed Canada’s first female cabinet minister, Ellen Fairclough.
  • His government cancelled the Avro Arrow project and faced controversy over defence and foreign policy.
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Canadian context

Diefenbaker was a major figure in Canadian federal politics and helped shape modern civil-rights and constitutional debates in Canada.

Frequently asked questions

Who was John Diefenbaker?
He was a Canadian lawyer and politician who served as the 13th prime minister of Canada from 1957 to 1963.
What party did Diefenbaker lead?
He led the Progressive Conservative Party of Canada.
What is Diefenbaker best known for?
He is best known for the Canadian Bill of Rights and for extending voting rights to First Nations and Inuit peoples.
When was Diefenbaker prime minister?
He served as prime minister from 1957 to 1963.
Where was Diefenbaker born?
He was born in Neustadt, Ontario, Canada.

References

  1. The Canadian Encyclopediahttps://www.thecanadianencyclopedia.ca/en/article/john-diefenbaker
    Supports: Biography, political career, civil-rights legacy, and prime ministership.
  2. Encyclopaedia Britannicahttps://www.britannica.com/biography/John-G-Diefenbaker
    Supports: Birth and death details, party leadership, and tenure as prime minister.
  3. Parks Canadahttps://www.pc.gc.ca/apps/dfhd/page_nhs_eng.aspx?id=1252
    Supports: National Historic Person designation, public significance, and major achievements.
  4. University of Saskatchewanhttps://diefenbaker.usask.ca/diefenbakers-legacy/the-life-and-political-career-of-john-g.-diefenbaker.php
    Supports: Early life, legal career, political career, and legacy.