Langelier station is a Montreal Metro station in the borough of Mercier–Hochelaga-Maisonneuve in Montreal, Quebec, Canada. It is operated by the Société de transport de Montréal (STM) and serves the Green Line. It is in the district of Mercier-Ouest. The station opened on June 6, 1976, as part of the extension of the Green Line to Honoré-Beaugrand station.OverviewDesigned by Victor Prus & André G. Dionne, it is a normal side platform station built in tunnel. The central mezzanine, built within the tunnel vault, gives access to three entrances on three corners at the intersection of Sherbrooke Street East and Langelier Boulevard. 6595, rue Sherbrooke est 6610, rue Sherbrooke est 3355, boul. Langelier On the platforms, sculptural grilles by Charles Daudelin conceal ventilation intakes.Origin of the nameThe station is located on rue Sherbrooke Est at boulevard Langelier, named for Sir François Langelier (1838 - 1915), who served in a number of high offices in Quebec, including mayor of Quebec City (1882 - 1890) and Lieutenant-Governor (1911 - 1915).