Thomas Fortin (December 15, 1853 – March 31, 1933) was a lawyer, judge, educator and political figure in Quebec, Canada.
He represented Laval in the House of Commons of Canada from 1896 to 1901 as a Liberal.
He was born in St-François-de-la-Beauce, Beauce County, Canada East, the son of Joseph Fortin and Marie-Louis Vachon.
Fortin was professor of civil and municipal law at McGill University.
Fortin settled at Sainte-Rose in Laval County in 1885.
He resigned his seat in the House of Commons in 1901 after he was named to the Quebec Superior Court for Montreal district.
Fortin retired from the bench in December 1919.