ר' יצחק אבן גיאת

Isaac ben Judah ibn Ghayyat (1030/1038–1089), commonly mispronounced ibn Ghiyyat, was a rabbi, Biblical commentator, codifier of Jewish law, philosopher, and liturgical poet from al-Andalus. He was born and lived in the town of Lucena in the Taifa of Granada, where he headed a rabbinic academy. He died in Cordoba.