The Douglas–Coldwell Foundation is a left-wing Canadian think tank devoted, in the words of its slogan, to "promoting education and research into social democracy."

The Foundation was named for and inspired by Tommy Douglas, the first federal leader of the New Democratic Party from 1961 to 1971, and M. J. Coldwell, leader of its predecessor Co-operative Commonwealth Federation from 1942 to 1960.

The foundation has underwritten biographies of Douglas, Coldwell, Clarence Gillis, Stanley Knowles, and Grace MacInnis, and scholarships and lectureships at Canadian post-secondary institutions.

The foundation also gives out yearly grants totalling up to $25,000 for projects supporting its mandate of "promoting education and research in social democracy."

Former NDP senior advisor Karl Bélanger became president of the foundation in November 2016.