Elhanan ben Isaac Jaffe of Dampierre (Hebrew: ר׳ אֶלְחָנָן בֶּן יִצְחָק יָפֶה מִדַּמְפְּיֵיר; d. 1184) also known as Rabbeinu Elhanan was a 12th-century French Tosafist and the son of Isaac ben Samuel. He is mostly known for his numerous commentaries on the Talmudic tractates, Avodah Zarah and Yoma among other notable commentaries. He is also the founder of the Jaffe family.[1]