Pelagia of Tarsus was a Christian martyr who lived in Tarsus during the reign of the Roman emperor Diocletian. According to tradition, she was a virgin who refused marriage proposals from the emperor's son and later from Diocletian himself. Following her refusal to renounce her faith, she was executed in Rome. While historical records regarding her life are limited, she remains a significant figure in Christian tradition due to her steadfastness and eventual martyrdom.