René-Arthur Fréchet (June 6, 1879[1] – May 28, 1950) was a Canadian architect who was active in New Brunswick and Nova Scotia, modern day Acadia.

He designed many churches and public buildings, a number of which are now protected for their architectural significance.

Two years later, in 1900, he moved to Moncton, New Brunswick, for the railway, and resided at the Minto Hotel.

Fréchet was a member of the provisional management team for the French-language Acadian newspaper L'Évangéline [fr], a founding member of the revitalized newspaper (1920s, see Valentin Landry), a city councillor for Moncton City Council for several years, and a member of Société Nationale l'Assomption.

Two days later, Émery Leblanc published a letter in L'Évangéline in memory of Frechet, highlighting his accomplishments.