Hugh MacKinnon is the Chairman and Chief Executive Officer of Bennett Jones and a member of the firm's Partnership Board.

MacKinnon had previously maintained an active corporate commercial practice in Calgary and Toronto.

He is chair of the Board of the C.D. Howe Institute, chair of the Board of the Ontario Brain Institute, co-chair of the Canada Institute Advisory Board of the Woodrow Wilson International Center for Scholars in Washington, D.C., and a member of the Advisory Board of Canada's Outstanding CEO of the Year. His memberships include the Royal Canadian Military Institute, the Ranchmen's Club, the Toronto Club, The Arts and Letters Club, the American Bar Association, and a number of other social, professional, and business organizations. He is a member of the Law Societies of Upper Canada, Alberta, and England and Wales.