Saint-Jean is a provincial electoral district in the Montérégie region of the province of Quebec. It comprises most of Saint-Jean-sur-Richelieu and all of Saint-Blaise-sur-Richelieu. It was created for the 1867 election (and an electoral district of that name existed earlier in the Legislative Assembly of the Province of Canada). It disappeared in the 1939 election and its successor electoral district was Saint-Jean–Napierville; however, it was re-created for the 1944 election. In the change from the 2001 to the 2011 electoral map, its territory was unchanged.