Peter MacKay

Peter MacKay

Baker & McKenzie LLP


Peter MacKay is a Partner in the Baker McKenzie Toronto office. Prior to joining the Firm in 2016, Peter MacKay, PC, QC (Privy Council and Queen's Counsel), served in the Parliament of Canada for over 18 years and in a ministerial post in the Canadian government for almost ten years after the Conservative Party formed a government in 2006. Most recently, he served as Canada's Attorney General and Minister of Justice until November 2015, a position to which he was appointed in 2013. Prior to this post, Mr. MacKay served as the Minister of National Defence for six years and held joint cabinet positions as Minister of Foreign Affairs and Minister for the Atlantic Canada Opportunities Agency. 

During his first five years in the House of Commons, Mr. MacKay served as House Leader and member of the Board of Internal Economy for the Progressive Conservative caucus. In this capacity he represented the caucus on issues pertaining to management and operations of Parliament. He also served as the Progressive Conservative critic for law enforcement issues, the Standing Committee on Justice and Human Rights, the Standing Committee on Canadian Heritage, the Standing Committee on Finance, and the Sub-Committee on the Study of Sport in Canada. In May 2003, Mr. MacKay became the Progressive Conservative Party of Canada's 23rd leader. He played a pivotal role in the reunification of the Conservative movement in Canada and the formation of the Conservative Party of Canada, serving as its 1st deputy leader. 

From 1992 to 1997, Mr. MacKay served as a Crown prosecutor in Nova Scotia, and spent time in private practice and in Germany as lawyer at Thyssen Henchel. He is the founder of the highly regarded Halifax International Security Forum, which he hosted beginning in 2009. He currently serves on numerous volunteer boards and Not for Profits: the National Board of Special Olympics Canada, Boost Child Youth Advocacy Centre and Wounded Warriors Canada, and supports Children's Aid Society, Big Brothers Big Sisters, Acadia U, and the Canada-United States Law Institute.

Practice Focus

Mr. MacKay's practice focuses on government enforcement proceedings and compliance matters, and he provides strategic advice to Canadian companies doing business globally and international companies doing business in Canada


  • Ontario~Canada (2016)
  • Nova Scotia~Canada (1991)


  • Dalhousie University (LL.B.) (1990)
  • Acadia University (B.A.) (1987)
  • Carleton University (1985)


  • English