Crescentia is the name of two Christian saints:
1. A martyr in Sicily under Diocletian, commemorated June 15.
2. A virgin, whose tumulus was near Paris, in a place where a stone bears the inscription: "Hic Requiescit Crescentia Sacrata Deo Puella;" but nothing more is known of her. She is commemorated August 19. See Gregory of Tours, De Gloria Conzess. cap. 105. in Migne's Patrol. Lat. 71:904.