Mohamed Ibn Chambas (born 7 December 1950 in Ghana) is a lawyer, diplomat, politician and academic from Ghana who has served as an international civil servant since 2006. He is currently the United Nations Special Representative of the Secretary-General for West Africa and the Sahel, and head of UNOWAS. Previously, he served as the UN SRSG and Head of the Joint UN-AU Peacekeeping Mission in Darfur (2012-2014), the Secretary-General of the African, Caribbean and Pacific Group of States (2010-2012) and the President of the Economic Community of West African States (ECOWAS, 2006-2009).
He attended Mfantsipim School, Cape Coast, and Government Secondary School, now Tamale Secondary School Tamale. He holds degrees in Political Science from University of Ghana, Legon (B.A. 1973) and Cornell University Ithaca, New York (M.A. 1977, PhD 1980). He has a law degree from Case Western Reserve University, Cleveland, Ohio. He was admitted to practice law in Ghana and the State of Ohio.