Saint-Lin–Laurentides is a small city in Montcalm Regional County Municipality of Quebec, Canada. Its official name uses an en dash; however, the city's website uses the two-hyphen version of its name: Saint-Lin-Laurentides. In the Canada 2021 Census, its population was 24,030. Saint-Lin was the birthplace of former Canadian Prime Minister Wilfrid Laurier, whose paternal home is now a National Historic Site of Canada.
Saint-Lin–Laurentides was formed on 1 March 2000, when the Municipality of Saint-Lin and the Town of Laurentides were merged.
Saint-Lin was first settled in 1807 when pioneers from Saint-Pierre-du-Portage (now L'Assomption) arrived. In 1828, the Saint-Lin-de-Lachenaie Parish was founded. In 1845, the Parish Municipality of Saint-Lin was established but was abolished two years later in 1847, when it was absorbed into the county municipality. That same year, its post office opened. In 1855, the municipality was reestablished as Saint-Lin-de-Lachenaye, with Carolus Laurier, Sir Wilfrid Laurier's father, first mayor.
Laurentides was originally the Village Municipality of Saint-Lin, incorporated in 1856. 1883, it changed its name and statutes and became the Town of Laurentides. Also, that year, the local post office opened.