Frelighsburg is a municipality in the Estrie region of southern Quebec, Canada, on the border with Vermont.

It is at the foot of Mount Pinnacle, part of the Appalachian Mountains.

It was established as a colony in the late 1790s by American Loyalists, including pioneer Abram Freligh, a physician of German origin who lived in Clinton, New York.

The sawmill built by his son in 1839, and several other buildings from the 19th century are considered historical monuments.

[1] Frelighsburg is less than 4 kilometres (2.5 mi) from the Canada–US border with Vermont, nestled in a valley of orchards crossed by the Pike River and at the foot of Mount Pinnacle.