Route 327 is a provincial highway located in the Laurentides region of Quebec. The 90-kilometer highway runs from St-André-d'Argenteuil at the junction of Route 344 to Mont-Tremblant just west of the Provincial Park of the same name. The route serves as the main connection between Argenteuil county and the popular tourist region of the Upper Laurentides. In Lachute it is briefly concurrent with Highway 148 (across a bridge). It is also concurrent with Route 364 between Weir and Arundel.