Saint-Isidore (2006 pop.: 796) is a Canadian village in Gloucester County, New Brunswick. It is bordered by the communities of Pont-Landry, Hacheyville, Bois-Gagnon and Tilley Road. The community is situated on the Acadian Peninsula. The current mayor is Oscar Roussel.Saint-Isidore belongs the town of Tracadie-Sheila's sphere of influence. With the population being Acadian, almost all of its inhabitants speak French as a mother tongue and are of the Catholic religion.