Route 2 was a previous number used for a major highway in the Canadian province of Quebec.

[1] The highway was part of a de facto interprovincial Route 2 that stretched from Windsor, Ontario to Halifax, Nova Scotia, connecting Ontario Highway 2 to New Brunswick Route 2, and further to Nova Scotia, connecting with Trunk 2.

It ran along Côte-de-Liesse Road from the former Route 2 / Route 17 concurrency in Dorval, past the Montreal–Dorval International Airport, to a traffic circle in Saint-Laurent where it met Laurentien Boulevard and Décarie Boulevard (Route 8 / Route 11A).

[4][5] The route was replaced by Autoroute 520 and its former eastern terminus is now the site of the Décarie Interchange.

Route 2C was a 14 km (9 mi) spur of Route 2 which ran along Boulevard Wilfrid-Hamel in Quebec City from Route 2 on the city's western edge to downtown.