Magdalene Cho was a 19th-century Korean Catholic laywoman from Seoul who is recognized as a martyr. Born around 1807, she was known for her deep devotion and her decision to remain a virgin to serve God. After working as a servant to support her family, she returned to her mother's home to assist the local Catholic community. She spent her later years teaching catechumens, caring for the sick, and performing baptisms. Her commitment to her faith eventually led to her arrest and execution during a period of persecution.