Maurice Perrault (12 June 1857 – 11 February 1909) was a Canadian architect, civil engineer, and politician.

Born in Montreal, Canada East, the son of Henri-Maurice Perrault, a surveyor and architect, and Marie-Louise-Octavie Masson.

Here, he was involved in the design of Sainte-Cécile in Salaberry-de-Valleyfield (1882–84); Sainte-Anne in Varennes (1883–87); Saint-Antoine in Longueuil (1884–87); and Saint-Charles in Lachenaie (1888–90).

[2] They also designed the Notre-Dame du Sacré-Coeur chapel behind the basilica,[3] and St. Andrew's Cathedral in Victoria[4] In 1888, Perrault, who was of Liberal allegiance, was appointed chief architect for the district of Montreal by Premier Honoré Mercier.

He died in office in 1909 and was buried in the Notre Dame des Neiges Cemetery.