Maria Ludovica De Angelis was an Italian religious sister of the Daughters of Our Lady of Mercy, established by Maria Giuseppa Rossello. Upon investiture into the congregation, she assumed the religious name Maria Ludovica. She initially served in Italy, but moved to Argentina where she devoted her time to children and the children's hospital in La Plata. She died there in 1962. Pope John Paul II beatified her in 2004.