Gaston Blackburn (born January 26, 1942) is a merchant, business owner and former political figure in Quebec.
He was born in Chicoutimi, Quebec, the son of Alfred Blackburn and Rita Harvey.
He first worked in the family grocery business and then was a regional supervisor for Provigo from 1970 to 1973.
Blackburn later became the owner of a number of supermarkets and a shopping centre.
In 1990 he was responsible for ordering the demolition of the Collège St-Gabriel a St-Bruno-de-Montarville landmark.