Saint-Flavien (French pronunciation: [sɛ̃ flavjɛ̃]) is a municipality in the Lotbinière Regional County Municipality in Quebec, Canada. It is part of the Chaudière-Appalaches region and had a population is 1,619 as of 2021. The municipality, constituted in 1999, covers an area of 66 km, with a population density of 25.

It is named after Archbishop Pierre-Flavien Turgeon and was created from the merger of the parish and the village of the same name.

Although the new constitution dates from 1999as a result of the merger of the Parish and of the Village of Saint-Flavien, the area has been settled since 1800. The original territory of Saint-Flavien, part of the seigneurie of Sainte-Croix, was split several times for the creation of the communities of Notre-Dame-du-Sacré-Cœur-d'Issoudun (1903), Dosquet (1912), the Village of Saint-Flavien (1912), Saint-Janvier-de-Joly (1928), and Laurier-Station (1951).

• Media related to Saint-Flavien at Wikimedia Commons
• Commission de toponymie du Québec
• Ministère des Affaires municipales, des Régions et de l'Occupation du territoire