Place-d'Armes is a station on the Orange Line of the Montreal Metro rapid transit system, operated by the Société de transport de Montréal (STM). It is located in Old Montreal in the borough of Ville-Marie in Montreal, Quebec, Canada.

It was inaugurated on October 14, 1966, as part of the original network of the metro. In 2006, 4.7 Million Passengers entered this Station. It was briefly the terminus of the orange line until Square-Victoria station opened four months later, quickly followed by Bonaventure station, the planned terminus.

The metro station, designed by J. Warunkiewicz, is a normal side platform station, built in open cut due to the presence of weak Utica shale in the surrounding rock. Its mezzanine, with fare barriers at either end, is located directly under the Palais des congrès de Montréal; one end gives direct access to the Palais, while the other opens outside.

The station is equipped with the MétroVision information screens which displays news, commercials, and the time till the next train.

This station is named for the Place d'Armes, a short distance to the south. It is the third square in Montreal to have this name, which is the common French name for the rallying place for a fort's defenders. It contains a statue of Paul Chomedey, sieur de Maisonneuve, who was a French Military Officer and the founder of Montreal.