- Hermetism3
- History, Military3
- Ibn Abī Jumhūr al-Aḥsāʼī, Muḥammad ibn ʻAlī, -approximately 1473. Masālik al-afhām3
- Ibn Maʻṣūm, ʻAlī ibn Aḥmad, 1642-approximately 1707. Badīʻīyah3
- Ibn Nujaym, Zayn al-Dīn ibn Ibrāhīm, -1563. Ṣaghāʼir wa-al-kabāʼir3
- Ibn al-Hāʼim, Aḥmad ibn Muḥammad, d. 1412. Murshidat al-ṭālib ilá asná al-maṭālib3
- Ibn al-Najjār, Taqī al-Dīn Muḥammad ibn Aḥmad, 1492 or 1493-1564 or 1565. Mukhtaṣar al-Taḥrīr3
- Ibn al-Sharīf al-Jurjānī, Muḥammad ibn ʻAlī, -1434 or 1435. Ghurrah fī al-manṭiq3
- Ibn al-ʻArabī, 1165-1240. Shajarah al-Nuʻmānīyah3
- Ibn Ḥajar al-ʻAsqalānī, Aḥmad ibn ʻAlī, 1372-1449. Nuzʹhat al-naẓar fī tawḍīḥ Nukhbat al-fikar3
- Ijtihād (Islamic law)3
- India3
- Intention--Religious aspects--Islam3
- Iqnāʼ (Ḥujāwī, Mūsá ibn Aḥmad)3
- Iran--Mashhad3
- Iraq--Karbalāʼ3
- Ishrāqīyah3
- Islam and philosophy3
- Islam--Apologetic works3
- Islam--Terminology3