Saint-Damien () is a parish municipality of 2,393 inhabitants in Quebec, Canada. It is located in Matawinie Regional County Municipality in the Lanaudière region.
The town was founded the 6 September 1870. In French, people from the town are known as damiennois.
Saint-Damien is located in the middle of Lanaudière region near Saint-Gabriel-de-Brandon municipality, about north of Montreal, west of Québec, and south of Taureau Reservoir. The main street is named "Rue Principale" (meaning, literally, "main street") and it is served by Quebec Route 347 which runs from Quebec Route 158 at Sainte-Geneviève-de-Berthier (2 km west of exit 144 on Autoroute 40) through Saint-Gabriel-de-Brandon, Saint Damien, Sainte-ÃÂmélie-de-l'ÃÂnergie and Saint-Côme to Québec Route 125 in Notre-Dame-de-la-Merci.
The bordering municipalities of Saint-Damien are, starting from northwest and proceeding clockwise, Saint-Zénon (northwest), Mandeville (northeast, in D'Autray Regional County Municipality), Saint-Gabriel-de-Brandon (southeast, in D'Autray Regional County Municipality), Saint-Jean-de-Matha (south) and Sainte-ÃÂmélie-de-l'ÃÂnergie (west).
In the 2021 Census of Population conducted by Statistics Canada, Saint-Damien had a population of living in of its total private dwellings, a change of from its 2016 population of . With a land area of , it had a population density of in 2021.
The Commission scolaire des Samares operates francophone public schools, including:
The Sir Wilfrid Laurier School Board operates anglophone public schools, including: