The deputy prime minister of Canada is a minister of the Crown and a member of the Canadian Cabinet. The office is conferred at the discretion of the prime minister and does not have an associated departmental portfolio. Canadian deputy prime ministers are appointed to the Privy Council and styled as the Honourable, a privilege maintained for life.

The Liberal Party of Canada is a federal political party in Canada. The party espouses the principles of liberalism, and generally sits at the centre to centre-left of the Canadian political spectrum, with their main rival, the Conservative Party, positioned to their right and the New Democratic Party positioned to their left. The party is described as "big tent", practising "brokerage politics", attracting support from a broad spectrum of voters. The Liberal Party is the longest-serving and oldest active federal political party in the country, and has dominated federal politics of Canada for much of its history, holding power for almost 70 years of the 20th century. As a result, it has sometimes been referred to as Canada's "natural governing party".