Mary Euphrasia Pelletier was a 19th-century French nun who established the Sisters of the Good Shepherd. Born Rose Virginie Pelletier in 1796 on the island of Noirmoutier, she joined a religious community in Tours in 1814. She eventually moved to Angers, where she founded a new congregation in 1829 to care for women in need. As the first superior general, she expanded the order's reach globally, overseeing thousands of sisters across many nations before her death in 1868.