- Ibn Abī Jumhūr al-Aḥsāʼī, Muḥammad ibn ʻAlī, -approximately 1473. Masālik al-afhām3
- Ibn al-Hāʼim, Aḥmad ibn Muḥammad, d. 1412. Murshidat al-ṭālib ilá asná al-maṭālib3
- Ibn al-Nafīs, ʻAlī ibn Abī al-Ḥazm, 1210 or 1211-1288. Mūjaz fī al-ṭibb3
- Ibn al-Nafīs, ʻAlī ibn Abī al-Ḥazm, 1210 or 1211-1288. Mūjiz al-Qānūn3
- 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
- Illumination of books and manuscripts, Arab3
- Illumination of books and manuscripts, Iranian3
- Imamate3
- Insertions (Provenance)3
- Interest (Islamic law)3
- Iqnāʼ (Ḥujāwī, Mūsá ibn Aḥmad)3
- Isfarāyīnī, Muḥammad ibn Muḥammad, -1285. Ḍawʼ al-Miṣbāḥ3
- Islamic astrology3
- Islamic heresies3
- Islamic interpretations of Jesus Christ3
- Islamic literature, Arabic3
- Islamic sects3
- Israel--Acre3