Ratnakarashanti (Skt. Ratnākaraśānti; Tib. རིན་ཆེན་འབྱུང་གནས་ཞི་བ་, Wyl. rin chen 'byung gnas zhi ba) was a famous abbot at the great monastic university of Vikramashila in India. Under the name of Shantipa (Skt. Śāntipa), he was also one of the eighty-four mahasiddhas, the great realized masters of the Vajrayana teachings. He was a contemporary and a teacher of Atisha.