John Kenneth Galbraith OC (October 15, 1908 – April 29, 2006), also known as Ken Galbraith, was a Canadian American economist, diplomat, public official, and intellectual. His books on economic topics were bestsellers from the 1950s through the 2000s.

As an economist, he leaned toward post-Keynesian economics from an institutionalist perspective. Galbraith was a long-time Harvard faculty member and stayed with Harvard University for half a century as a professor of economics. He was a prolific author and wrote four dozen books, including several novels, and published more than a thousand articles and essays on various subjects.