Atwater station is a Montreal Metro station in the borough of Ville-Marie in Montreal, Quebec, Canada. It is operated by the Société de transport de Montréal (STM) and serves the Green Line on the border between the city of Westmount and Montreal.The station opened on October 14, 1966, as part of the original network of the Metro; it was the western terminus of the Green Line until the extension to Angrignon in 1978.Architecture and artDesigned by David, Boulva et Cleve, it is a normal side platform station, built in open cut under the De Maisonneuve Boulevard. It has a large mezzanine with ticket barriers on either end. It has underground city connections to the Place Alexis Nihon, Westmount Square, and Dawson College.The station is equipped with the MétroVision information screens which displays news, commercials, and the time till the next train.Origin of the nameThis station is named for Atwater Avenue, named for Edwin Atwater (1808 - 1874), a municipal alderman of the district of Saint-Antoine. The street was named for him in 1871.