Marcel Massé PC OC KC (born June 23, 1940) is a Canadian politician and civil servant.
Massé was born in Montreal, Quebec in 1940 and graduated from McGill University and Pembroke College, Oxford (as Rhodes Scholar in 1963).
In his distinguished public service career, he also served as President of the Canadian International Development Agency, on two occasions; was undersecretary for external affairs; and represented Canada as its executive director at the International Monetary Fund, World Bank and Inter-American Development Bank.
The incumbent, Gilles Rocheleau, had joined the sovereigntist Bloc Québécois in 1990 after the Meech Lake Accord failed.
After the Liberal Party of Canada's leadership convention in December 2006 he was asked to join the transition team of newly elected leader Stéphane Dion.