Alfred Leduc (August 2, 1868 – June 24, 1957) was a merchant and political figure in Quebec. He represented Westmount—St. Henri in the Canadian House of Commons as a Laurier Liberal from 1917 to 1921 and Montréal–Saint-Henri in the Legislative Assembly of Quebec from 1927 to 1931 as a Liberal. His name appears as Joseph Alfred Leduc in some sources.
He was born in Montreal, the son of Édouard Leduc, a butcher, and Marie-Louise Marcotte, and was educated at the École Saint-Joseph, at the Collège de Montréal and the Academy of the Archbishop of Montreal. He worked as a clerk and then as a master butcher in his father's business. In 1889, with his brother, he took over the operation of the family business. In 1892, he married Eugénie Claude. Leduc was vice-president of the Montreal Livestock Exchange. From 1900 to 1905, he was president of the Butcher's Association in Montreal. Leduc served on the board of governors for the Hôpital Notre-Dame, the Hôpital Western and the Westmount YMCA. Leduc served on the town council for Saint-Henri from 1894 to 1897 and from 1902 to 1903 and for Sainte-Cunégonde from 1903 to 1905. He died in Montreal at the age of 88 and was buried in the Notre Dame des Neiges Cemetery.