Léonce Mercier (August 11, 1926 – December 27, 2019) was a Canadian Senator from Quebec as well as a businessman and consultant.
Mercier is a long-time activist and organizer in the Liberal Party of Canada in Quebec under Pierre Trudeau and Jean Chrétien and Quebec Liberal Party during the leadership of Jean Lesage and Robert Bourassa.
[2] Mercier was a leading Quebec organizer of Jean Chrétien's campaigns for the leadership of the federal Liberal Party at the 1984 and 1990 federal Liberal leadership convention.
He served as Whip of the Senate Liberal caucus from 1998 until his retirement.
[2] In his earlier life he worked variously as a car salesman in a Ford dealership, an inspector for a lumber company, an agent for independent truckers.