(August 13, 1926 – March 16, 1990) was a politician in Ontario, Canada.
He was a Liberal of the Legislative Assembly of Ontario from 1987 to 1990.
He represented the riding of Ottawa South.
He is better known as the father of Dalton McGuinty who was Premier of Ontario from 2003 to 2013 and David McGuinty who has been a member of the House of Commons of the Parliament of Canada since 2004.