Stephen Harper, Canadian economist and politician, 22nd Prime Minister of Canada

Stephen Joseph Harper is a Canadian politician who served as the 22nd prime minister of Canada from 2006 to 2015. He is to date the only prime minister to have come from the modern-day Conservative Party of Canada, serving as the party's first leader from 2004 to 2015. Since 2018, he has also been the chairman of the International Democracy Union.

The prime minister of Canada is the head of government of Canada. Under the Westminster system, the prime minister governs with the confidence of a majority of the elected House of Commons; as such, the prime minister typically sits as a member of Parliament (MP) and leads the largest party or a coalition of parties. As first minister, the prime minister selects ministers to form the Cabinet.