Joseph Marcoux (16 March 1791 – 29 May 1855) was a Canadian Catholic missionary among the Iroquois.
During the War of 1812, Marcoux escaped the American attack on the mission on 23 October 1812.
[1] For the remaining forty-two years of his life, Marcoux worked to evangelize the Iroquois, first at St. Regis, later at other missions at Kahnawake (Sault-St-Louis) and Lac des Deux Montagnes.
He was a close friend and regular correspondent of Bishop Michael Power, and in 1838 joined him in signing a statement of loyalty to Queen Victoria in response to rebellions in the regions around Montreal.
[2] A noted linguist, Marcoux compiled early reference materials on the Mohawk language.