Saint-Viateur d'Outremont Church, Roman Catholic church in Outremont, Canada.

Saint-Viateur d'Outremont Church is a Roman Catholic church at 183 Bloomfield Avenue, at the corner of Laurier Avenue West. Built in 1911 to Gothic Revival designs by architects Louis-Zéphirin Gauthier and Joseph-Égilde-Césaire Daoust, it has very slender arches. Guido Nincheri decorated the interior and signed the stained-glass windows.

The parish of Saint-Viateur d'Outremont was erected in 1902 as the first parish of Outremont, detached from the neighbouring Saint-Enfant-Jésus du Mile-End. From 1904 to 1912 it used the former Anglican church of the Ascension on avenue d'Outremont, facing Saint-Viateur park, while awaiting its own building. The church was built in 1911, in the wake of the 1910 Eucharistic Congress of Montreal, and blessed on 26 October 1913.

Guido Nincheri decorated the church and signed its stained glass windows, drawn by him and made by Henri Perdriau's firm; the wall and vault paintings are his first major work in America. The oak interior carvings are by several sculptors, including Elzéar Soucy, Joseph-Olindo Gratton, who made the Last Supper beneath the altar, Victor Allard and Médard Bourgault, who replaced the original plaster statues with wooden ones in 1950.

The church stands at 183 Bloomfield Avenue, at the corner of Laurier Avenue West in Outremont. The parish used the former Anglican Church of the Ascension on Avenue d'Outremont, opposite Saint-Viateur Park, from 1904 to 1912 while its own building was awaited. The Casavant organ, inaugurated on 23 November 1913, has 37 stops, 3 manuals and a pedalboard.

The Casavant organ was inaugurated on 23 November 1913 and restored by the Guilbault-Thérien workshops in 1991, when its Positif division was rebuilt in a neo-classical style. It has 37 stops, three manuals and a pedalboard.