- Iakov: (Pyatnitskij, Ivan Alekseevich) 1844–1922, Metropolit von Bessarabien Kischinjow, 3.357
- Ibn Adī: ↗Yaḥyā ibn ʿAdī
- Ibn al-‘Arabī: ↗Muḥyī al-Dīn ibn al-‘Arabī
- Ibn ‘Asākir: ↗Abū al-Ḥasan ‘Alī al-Ash‘arī
- Ibn Bājjah: ↗Avempace
- Ibn Da'ud: ↗Abraham ibn Da'ud
- Ibn Esra: fl. 11.–12. Jh., Hofbeamte, Gelehrte Toledo, 6.132
- Ibn Farhād: ↗Bābāī ibn Farhād
- Ibn Ḥazm: 994–1064, Gelehrter Córdoba, 2.44
- Ibn ‘Idhārī: fl. 1312, Geschichtsschreiber Toledo, 6.132
- Ibn Janāḥ: ↗Yona ibn Janāḥ
- Ibn Jarīr al-Ṭabarī: 839–923, Geschichtsschreiber, Korankommentator Tafsīr, 6.2
- Ibn Kammūnah: ↗Sa…