Saint Thecla was one of the most prominent figures of early Christianity who provided a model of virginity and a role-model for women in the early Church. She was the object of cult and of pilgrimage and her tale in the Acts of Paul and Thecla made a tremendous impact on later hagiographies of both female and male saints. This volume explores this impact on medieval hagiographical texts composed in Armenian, Coptic, Ethiopic, Greek, Irish, Latin, Persian, and Syriac. It investigates how they evoked and/or invoked Thecla and her tale in constructing the lives and story worlds of their chosen saints and offers detailed original readings of the lives of various heroines and heroes. The book adds further depth and nuance to our understanding of Thecla's popularity and the spread of her legend and cult.