ابن فارس (Ibn Faris) refers to

Ahmad ibn Faris ibn Zakariya al-Harrani

(أحمد بن فارس بن زكريا الحَرّانيّ). He was a prominent Arab philologist, lexicographer, and grammarian who lived in the 10th century CE (4th century AH). He is best known for his work

"Muqaddimat al-Adab" (مقدّمة الأدب)

, a foundational text in Arabic lexicography. His work significantly contributed to the understanding and study of the Arabic language, its roots, and its etymology.