St. Isidore or Saint-Isidore may refer to:
People Isidore of Chios (d. 251), martyr from Roman Egypt Isidore of Scété (died c. 390), Egyptian priest and desert ascetic Isidore of Pelusium (d. c. 450), monk from Roman Egypt Isidore of Seville (c. 560–636), scholar and Archbishop of Seville, Spain Isidore the Laborer (c. 1070–1130), peasant and patron saint of Madrid, Spain
Places Canada St. Isidore, Alberta St. Isidore, Ontario St. Isidore-de-Bellevue, Saskatchewan Saint-Isidore, New Brunswick Saint-Isidore Parish, New Brunswick Saint-Isidore, Montérégie, Quebec Saint-Isidore-de-Clifton, Quebec Saint-Isidore, Chaudière-Appalaches, Quebec
Elsewhere Church of St. Isidore, Renavas, Lithuania St. Isidore Island, Antarctica St Isidore's, Queensland, Australia, a homestead St. Isidore Cathedral, Holguín, Cuba St. Isidore Catholic Church, Los Alamitos, United States Saint Isidore Cemetery, Madrid, Spain
See also San Isidro (disambiguation)