Guylaine Saucier is a Canadian businessperson who has been the head of 7 different companies. Presently, she holds the position of Chairman of Grand Challenges Canada. Ms. Saucier is also Member of Order of Canada and on the board of 9 other companies.

She previously occupied the position of Chairman for 2158-4933 Quebec, Inc., Chairman at 9155-4676 Quebec, Inc., Chairman & Chief Executive Officer at Gérard Saucier Ltd., Chairman of Canadian Broadcasting Corp., Chairman of Canadian Institute of Chartered Accountants and President for Quebec Chamber of Commerce.

She received an undergraduate degree from HEC Montréal, an undergraduate degree from Collège Marguerite-Bourgeois and a doctorate from Université Laval.