Bendich Ahin (died 1402), also known as Maestro Bendit and Baruch Chaim (, Barukh Ḥayyëm), was a fourteenth-century Jewish physician, astrologer, and mathematician in Arles.
In 1369, Ahin became court physician to Queen Joanna I of Naples. In recognition of his medical services, he was exempted from Jewish taxes and tallages. The privilege was extended to his descendants. According to , Ahin's astrological knowledge led him to predict the Queen's tragic death.