Saint-Julien (French pronunciation: [sɛ̃ ʒyljɛ̃] ⓘ) is a municipality located in the Municipalité régionale de comté des Appalaches in Quebec, Canada.

It is part of the Chaudière-Appalaches region and the population is 376 as of 2016.

It is named after Julien-Melchior Bernier, the first reverend of the parish between 1856 and 1863.