Pierre Reid was born in Jonquière on August 16, 1948, the son of Louis Reid, a merchant, and Georgette Tremblay.
He earned his Bachelor's degree in science at Université Laval in 1970 and his Doctorate of science (mathematics) at Université de Paris XI in 1974.
From 1973 to 1976, he worked as an IT consultant at IBM Canada and as a management systems consultant for a variety of organizations from 1976 to 1989. Mr. Reid worked as a professor of information systems at the University du Québec à Chicoutimi from 1976 until 1978 and as a professor, associate dean and MBA program director in the Faculty of Administration at Université de Sherbrooke. He also held the administrative position of vice-rector from 1989 until 1991 and as rector at the same institution from 1993 until 2001. Mr. Reid also served as President of the Conference of Québec university rectors and principals from 1995 until 1997, as associate deputy minister delegated to Industry Canada in 2001 and 2002, and as Special adviser to the Deputy Minister for Economic Development of Canada in 2002 and in 2003. He was member of the Board of Directors of the Petit Théâtre de Sherbrooke from 1992 until 2001 and Board Chairman for Ensemble Musica-Nova from 1994 until 2001.
Elected as member of the Liberal Party for Orford in 2003, Pierre Reid was re-elected in 2007, 2008, 2012 and 2014. He was appointed Minister of Education in the Charest cabinet from April 29, 2003 until February 18, 2005, and Minister of Government Services from February 18, 2005 until February 27, 2006.