Pierrefonds-Roxboro (French pronunciation: [pjɛʁfɔ̃ ʁɔksbɔʁo]) is a borough of the city of Montreal.

[7] It is composed of the former municipalities of Pierrefonds and Roxboro, spanning the northern part of the West Island.

The borough was served by the Sunnybrooke and Roxboro-Pierrefonds stations on the Deux-Montagnes commuter train line.

According to the Office québécois de la langue française, the borough of Pierrefonds-Roxboro has been officially recognized as a bilingual municipality since 2005-12-07.

Vocational Education: High schools: Elementary Schools: The Montreal Public Libraries Network operates the Pierrefonds Branch (13 555, boulevard Pierrefonds) and the William G. Boll Branch (110, rue Cartier) in the borough.