Saint-Lambert, Qué, City, pop 21 599 (2006c), 21 051 (2001c), first incorporated in 1921 and reincorporated in 2006. Saint-Lambert was amalgamated into the city of Longueuil from 2002-2006 when it then regained municipal status. It is located along the South Shore of the St Lawrence River across from Montréal, and is connected to that city by the Victoria bridge (completed 1859).

In 1636, a large concession was given to François de Lauzon by the Compagnie des Cent-Associés. La Citière, as it was known, stretched along the St Lawrence River and included the areas of La Prairie de Magdelaine and La Prairie de Saint-Lambert. The area was most likely named after Raphaël-Lambert Closse, a clerk of the court and a major in the garrison of Ville-Marie. The area of present-day Saint-Lambert was initially referred to as Mouille-Pied, meaning "wet feet" since the hunters of the area often encountered swampy territory and frequently returned with wet feet. In 1647, Lauzon donated some of his land, including Mouille-Pied, to the Jesuit Fathers.

In 1688 colonists erected Fort Saint-Lambert against Iroquois attack. The arrival of the Champlain and Saint Lawrence Railroad in 1852 brought in an influx of settlers. Two years later, Victoria Bridge was under construction linking Saint-Lambert to Montréal. The opening up of the area led to this primarily farming community's incorporation as a municipality in 1857. It then became a village in 1892, a town in 1898 and a city in 1921 (dissolved in 2002). The town of Préville (incorporated 1948) was annexed in 1969.

Saint-Lambert is primarily a residential suburb with most people commuting to Montréal to work. It is also the gateway to the Saint Lawrence Seaway, where the Saint-Lambert lock attracts many tourists. Along Riverside Drive there are many historic houses, including Maison Marsil (1749), which is now a textile and clothing museum, Musée Marsil.