Park Extension (French: Parc-Extension) is a neighbourhood in the city of Montréal, Québec. It is located in the borough of Villeray–Saint-Michel–Parc-Extension and has a population of 33,800 and an area of 1.6 km² (400 acres). The name derives from the fact that it is situated at the north end of Park Avenue and is literally an "extension" of the artery. The area is known by locals as "Park Ex."