Yolande Thibeault (born October 8, 1939) is a Canadian politician and journalist who was elected a member of Parliament of the House of Commons of Canada for the Saint-Lambert Riding in the 1997 general election.
During her first mandate as Member of Parliament (MP), she was assistant deputy chair of the Committees of the Whole House.
For her second term, she was vice-chair of the Standing Committee on Official Languages, a member of the Standing Committee on Human Resources Development and the Status of Persons with Disabilities, chair of the Prime Minister's caucus Task Force on Seniors, chair of the Canada-Germany Friendship Group, chair of the Canada-Cyprus Friendship Group, executive member of the Canada-France Inter-Parliamentary Association, and executive member of Canada-Africa Parliamentary Group.
She was subsequently defeated in the election of 2004, losing by 5,370 votes to Cameroonian-born sovereigntist Maka Kotto of the Bloc Québecois.
Thibault's defeat was remarkable because the riding had been considered a "Liberal fortress."