- 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 ʻAllān, Muḥammad ʻAlī ibn Muḥammad, 1588-1648. Ḥusn al-ʻibārah fī naẓm al-istiʻārah1
- Ibn ʻUmrān, Muḥammad ibn Mūsá, 1392-14691
- Ibrāhīm, Pasha, 1789-18481
- Ijtihād (Islamic law)1
- India--Delhi1
- India--Hyderabad1
- India--Surat1
- Inquisition1
- Intention--Religious aspects--Islam1
- Iran--Ardabīl1
- Iran--Dizfūl1
- Iran--Iṣfahān1
- Iran--Mashhad1
- Iran--Sabzevār (Khurāsān-i Raz̤avī)1
- Iraq1
- Iraq--Baghdad1
- Iraq--Erbil1