Saint-Sulpice Seminary, Catholic seminary in Ville-Marie, Canada.

Saint-Sulpice Seminary is a rubble-stone building on Notre-Dame Street, set back from the street to form a square cour d'honneur. Its central corps de logis, built 1683–1685, has a mansard roof with two white-framed dormer windows and a stone tower holding a round clock with Roman numerals. A wooden double door with small glass panes sits under a flat stone lintel.

Construction took place between 1684 and 1687 under François Dollier de Casson, making it the oldest structure in Old Montreal still serving its founding purpose. The seminary marks the beginning of Catholic priestly education in French colonial North America.

The name Vieux Séminaire de Saint-Sulpice recalls the Society of Priests of Saint Sulpice, who arrived in Montreal on 12 August 1657 and have owned the building since its creation. The garden they laid out in the 17th century, with geometrically arranged beds and a central statue in the French Renaissance manner, is among the oldest of its kind in North America.

The seminary stands on Notre-Dame Street facing Place d'Armes, beside Notre-Dame Basilica, in Old Montreal. The building and its garden remain the property of the Priests of Saint-Sulpice and are not open as a public museum; the courtyard is enclosed by a wall with a portal on the street. View the rubble-stone facade and the 1701 clock from the public square and street.

The clock on the facade was installed in 1701, its dial engraved in Paris by Paul Labrosse and gilded by the Sisters of the Congregation of Notre-Dame. It sits near the top of the stone tower above the roofline, with Roman numerals and black hands, and counts among the oldest clocks of its kind in North America.