Michael Posner (born 1947) is a Canadian journalist, best known as the author of the Mordecai Richler biography The Last Honest Man,^[1] the Anne Murray biography All of Me,^[2] and The Art of Medicine: Healing and the Limits of Technology with the physician Dr. Herbert Ho Ping Kong.^[3] He is also the author of a three-volume oral biography of Leonard Cohen published by Simon and Schuster. The first volume Leonard Cohen, Untold Stories: The Early Years was published in 2020. The second volume Leonard Cohen, Untold Stories: This Broken Hill was published in 2021, and the final volume, Leonard Cohen, Untold Stories: That's How the Light Gets In, will be published late 2022.^[4]

In his youth, he appeared as an actor in the film And No Birds Sing, for which he won the Canadian Film Award for Best Supporting Actor in a Non-Feature at the 21st Canadian Film Awards in 1969.^[5] He did not continue to work as an actor, instead becoming a journalist. In 1977, he co-founded Canadian Lawyer Magazine,^[6] and went on to write for publications such as the Financial Times of Canada,^[7] The Globe and Mail and Toronto Life. His books and long form journalistic works have included The Big Picture: What Canadians Think About Almost Everything (1990), cowritten with Allan Gregg;^[8] Canadian Dreams: The Making and Marketing of Independent Films (1993);^[9] and Triple Bypass (2016), about his 2013 battle with heart disease.