Pie IX Bridge is a bridge in Quebec, spanning the Rivière des Prairies. It connects the Saint-Vincent-de-Paul area of Laval, on Île Jésus, and the borough of Montréal-Nord in Montreal, on the Island of Montreal. The bridge was part of Autoroute 25 until the construction of the new toll bridge for Autoroute 25. It is now part of Quebec Route 125.