Abū Yaʿqūb Yūsuf ibn Nūḥ (known in Hebrew as Joseph ben Noah) was a Karaite scholar who was active in the second half of the tenth century and the early eleventh century (see Karaism). For most of his adult life Ibn Nūḥ resided in Palestine. According to the chronicle of Karaite scholars by David ibn al-Hītī (15th century), he founded a college (Ar. dārlil‑ʿilm) in Jerusalem around the end of the tenth century. He is likely to be identical with the Abū Yaʿqūb Yūsuf ibn Bakhtawayh (or Bakhtawī) mentioned in some sources (see Pinsker, p. 62; Mann, vol. 2, p. 30).

The surviving works that are expl…