Rachilidis was a 10th-century Benedictine nun and recluse from a noble Swiss family. Following her adoption as a spiritual daughter by Saint Wiborada, she lived within Wiborada's cell. Despite suffering from various chronic conditions, including an incurable skin disease, she remained dedicated to her service and religious life. She lived in the vicinity of Saint Gall until her death, which is believed to have occurred around the year 946.