In a career spanning more than twenty-five years at the United Nations, Michèle Griffin has served as a senior policy advisor and director of policy planning to successive UN Secretaries-General. She currently directs the Summit of the Future/Common Agenda Team in the office of Secretary-General António Guterres. She has played a role in several major summits and reform efforts and previously set up and ran the UN Mediation Support Unit, aiding peace processes around the world. Griffin has been an adjunct professor at Columbia University and a fellow at the University of Pennsylvania and Stanford University. She is an alumna of Trinity College Dublin, Ireland, and the London School of Economics and Political Science.