Joseph-Adolphe Dorion (March 19, 1832 – October 24, 1900) was a notary and political figure in Quebec.
He was born in Saint-Ours, Lower Canada, the son of Jacques Dorion and Catherine-Louise Lovell.
He ran unsuccessfully for a seat in the legislative assembly for the Province of Canada in 1861.
In 1865, Dorion married Henriette-Amélie, the daughter of seigneur François-Roch de Saint-Ours.
In 1882, he was named to the Legislative Council of Quebec for Sorel division and served there until 1897.