Rue Saint-Louis

Rue Saint-Louis is a main street in Gatineau, Quebec, Canada, that runs mostly along the north and east side of the Gatineau River in the old city of Gatineau. It starts at the boundaries of the city of Gatineau and the suburban town of Cantley, Quebec and ends at Boulevard Maloney. On its northern end until Autoroute 50, it runs parallel to the Gatineau River, while it briefly runs parallel to the Ottawa River on its eastern end.

Prior to the amalgamation of the city of Gatineau, Rue Saint-Louis was a relatively minor street in the Pointe-Gatineau/La Baie neighbourhood that ran from east of Boulevard Greber to Rue Jacques-Cartier where it became former Avenue Du Golf (Golf Avenue) for the remaining stretch on to Boulevard Maloney. Between Autoroute 50 and Boulevard Greber, it was formerly known as Boulevard Archambault, a small residential artery through the western portions of Pointe-Gatineau.

Through most of the stretch between Autoroute 50 and Cantley, Rue Saint-Louis is also known as Route 307. That section was formerly known as Avenue Principale before the 2002 amalgamation - this street name is not to be confused with Rue Principale, which is for the former city of Aylmer's main commercial area.

This street is the location of the Collège Saint-Alexandre, a private secondary school, one of two in the city, the other being the Collège Saint-Joseph de Hull institution for girls. A professional education centre is also located a few blocks away It is also home to La Baie Park which is the site of the city's annual Gatineau Hot Air Balloon Festival, and the Bowater plant.