Spanish Talmudist of the thirteenth and fourteenth centuries; a native of Barcelona. He was a contemporary of Solomon See ADRET, but the assertion of Gross that Ḥiyya was Adret's pupil is without foundation, for Ḥiyya never refers to Adret as his master. Ḥiyya was the author of a work entitled "Sefer ha-Shulḥan," a treatise, in four parts, on matters of ritual. Gross conjectures that it is this work that is quoted by Isaac b. Sheshet in No. 40 of his responsa. GERSHON BEN SOLOMON BEN ASHER.