Céline Hervieux-Payette, (born April 22, 1941, L'Assomption, Quebec) is a former Canadian Senator and the former Leader of the Opposition in the Senate of Canada (2007-2008), the first woman ever to hold this position.
She was previously a Liberal Member of Parliament from 1979 to 1984 and a cabinet minister in the government of Pierre Trudeau in the 1980s.
She retired from the Senate on April 22, 2016 upon reaching the mandatory retirement age of 75.