Saint James United Church is a heritage church in downtown Montreal, Quebec. It is a Protestant church affiliated with the United Church of Canada. It is located at 463 Saint Catherine Street West between Saint Alexandre and City Councillors Streets (McGill Metro station), in the borough of Ville-Marie. It is designated as a National Historic Site of Canada in 1996.
The Gothic Revival church was designed by Montreal architect Alexander Francis Dunlop. It is noteworthy for its false apse housing church offices and for its Casavant Frères organ.