Judah b. Solomon Khallāṣ I (b. Castille date unknown; d. Tlemcen – before 1537) was a biblical commentator, talmudist, and communal leader from a prominent Sephardi scholarly family (probable meaning in Arabic: tax collector or someone who cures leather). He fled Christian Spain for Granada in 1477 and from there to Malaga in 1482, serving as a teacher in both places. In 1486, he crossed the Mediterranean to the port of Honaine, and from there sixty kms. south to the Zayyanid capital, Tlemcen, where he served as the tutor to ‛Allāl, the son of the wealthy Joseph b. Sidon, wh…