Peter Thomas Coleman (born September 9, 1959) is a social psychologist and researcher in the field of conflict resolution and sustainable peace. Coleman is best known for his work on intractable conflicts and applying complexity science.
Coleman is a professor at Columbia University and the executive director of the Advanced Consortium on Cooperation, Conflict, and Complexity (AC4)[1] and the Morton Deutsch International Center for Cooperation and Conflict Resolution.[2] Coleman also serves on the faculty in the Negotiation and Conflict Resolution masters program at Columbia's School of Professional Studies.[3] He also co-founded the Institute for Psychological Science and Practice.