Marc Lavoie (born 1954)[1] is a Canadian professor in economics at the University of Ottawa and a former Olympic fencing athlete.

With Mario Seccareccia, he has been the co-editor of three books, including one on the works of Milton Friedman, in addition to writing the first Canadian edition of the Baumol and Blinder first-year textbook (2009).

Lavoie has been the associate editor of the Encyclopedia of Political Economy (1999), and he has been a visiting professor at the universities of Bordeaux, Nice, Rennes, Dijon, Grenoble, Limoges, Lille, Paris-1 and Paris-Nord, as well as Curtin University in Perth, Australia.

He has lectured at post-Keynesian summer schools in Kansas City, the Levy Economics Institute and Berlin.

[3][4] Having been named Carleton University's Male Athlete of the Year in 1973-74 and again in 1974–75, on October 16, 2014, Lavoie was inducted into Carleton University's Athletic Hall of Fame[5] He had previously been inducted into the Hall of Fame of the Fédération d’escrime du Québec.