Leader of the Liberal Party of Canada

The leader of the Liberal Party of Canada (French: chef du Parti libéral du Canada) is the highest political office of the Liberal Party of Canada. The holder of the office is the formal political head of the party as a political organization and its parliamentary caucus in Canada's House of Commons, with specific authority to "speak for the party concerning any political issue".

The current leader is Mark Carney, the current Prime Minister of Canada. He is the 14th permanent leader. He succeeded former Prime Minister Justin Trudeau as party leader on March 9, 2025, following his victory in the party's leadership election, and succeeded Trudeau as Prime Minister five days later. Given that the Liberal Party has been one of the two principal contenders for power for most of Canada's history, most of the past holders of this office had served as prime minister.

The leader primarily functions in parliament and, when the party is in power, in government. Past leaders had from time to time designated deputy leaders in parliamentary caucus, or deputy prime ministers in their ministries, and assigned varying additional authorities and responsibilities to such deputies. There is currently no such deputy designated. The leader is also advised and assisted by two individuals holding offices through separate elections: the national caucus chair elected by the party's parliamentary caucus (currently Etobicoke—Lakeshore MP James Maloney); and party president, a volunteer elected by the party's convention to serve as the board chair and executive head of the party's administrative organization (currently Sachit Mehra).