Born in Saint-François-du-Lac, Canada East, the son of Louis Allard and Marie-Anne Chapdelaine, Allard was educated at Nicolet College and the Université Laval in Montreal.

A lawyer, he was called to the Quebec Bar in 1883 and was created a King's Counsel in 1906.

He was elected to the Legislative Assembly of Quebec for the electoral district of Yamaska in an 1897 by-election held after the death of Victor Gladu.

He resigned in 1910 and was re-elected in a 1910 by-election in the riding of Drummond to the Legislative Assembly.

His daughter Marguerite married Aimé Boucher,[1] a member of the House of Commons of Canada.