- Ibn Yūsuf al-Ṣafī, Muḥammad, 1421-14871
- Ibn al-Fāriḍ, ʻUmar ibn ʻAlī, 1181 or 1182-1235. Tāʾīyah1
- Ibn al-Jarādiqī, Muḥammad ibn ʻAlī, approximately 1373-14571
- Ibn al-Naḥwī, Yūsuf ibn Muḥammad, approximately 1041-1119 or 1120. Qaṣīdah al-munfarijah1
- Ibn al-ḥajj, ḥamdūn ibn ʻAbd al-Raḥmān, 1760-1817. Maqṣūrah fī ʻilmay al-ʻarūḍ wa-al-qawāfī1
- Ibn ʻUmrān, Muḥammad ibn Mūsá, 1392-14691
- Ijtihād (Islamic law)1
- Imams (Shiites)1
- Indexes1
- India--Delhi1
- India--Hyderabad1
- India--Surat1
- Iran--Ardabīl1
- Iran--Dizfūl1
- Iran--Iṣfahān1
- Iran--Mashhad1
- Iran--Sabzevār (Khurāsān-i Raz̤avī)1
- Iraq--Baghdad1
- Iraq--Erbil1
- Ishārāt wa-al-tanbīhāt (Avicenna)1