רבי אלחנן בן יצחק מדנפייר שבצרפת, היה פרשן מבעלי התוספות ופייטן במאה ה-12.
Elhanan ben Isaac Jaffe of Dampierre 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.
On Wikipedia: עברית · English — summary from Wikipedia, CC BY-SA