The Orange Line, also known as Line 2, is the longest and first-planned of the four subway lines of the Montreal Metro in Montreal, Quebec, Canada. It formed part of the initial network, and was extended from 1980 to 1986. On April 28, 2007, three new stations in Laval opened making it the second line to leave Montreal Island.

Laval is a city in Quebec, Canada. It is in the southwest of the province, north of Montreal. It is the largest suburb of Montreal, the third-largest city in the province after Montreal and Quebec City, and the thirteenth largest city in Canada, with a population of 443,192 in 2021.