Louis-Édouard Cestac (6 January 1801 – 27 March 1868) was a French Roman Catholic priest and alongside his sister Marie-Louise-Élise co-founded the Serviteurs de Marie. Cestac was dedicated to the needs of the poor and he met with them on a frequent basis in order to get to know them better and to know how he could better serve them in terms of their material and spiritual needs. But he was concerned for girls who were poor and destitute and so decided to provide them with a stable environment. He enlisted the aid of his sister and the two founded a religious order that would be dedicated to helping them.