The Congregation of the Daughters of Our Lady of the Sacred Heart is a Roman Catholic religious institute founded in Issoudun, France, on 30 August 1874 by Servant of God Jules Chevalier (1824-1907), the Founder of the Missionaries of the Sacred Heart. From the Latin form of its name, Filiae Dominae Nostrae Sacro Corde, it takes the abbreviation FDNSC.^[1] The first Superior General of the Daughters of Our Lady of the Sacred Heart was Sr Marie Louise Hartzer.^[2] The order has an orientation towards missionary work and teaching.^[3] It is one of the members of the Chevalier Family group.

Recently, the order has been active in Papua New Guinea and Kiribati with spiritual and health work.^[4] The Daughters also work in Australia, where they founded and run girls' secondary college Our Lady of the Sacred Heart College, Sydney, along with two other schools of the same name in Melbourne and Adelaide. There are convents located in Melbourne (VIC), Sydney (NSW) and Bowral (NSW). The convent in Bowral, Hartzer Park, now also functions as a conference centre and retreat.