- Ishārāt wa-al-tanbīhāt (Avicenna)1
- Islam--Theology1
- Islamic calendar1
- Islamic chronology1
- Islamic meditations1
- Islamic painting1
- Islamic sects1
- Islamic sermons1
- Islamic sermons, Arabic1
- Islamic sermons, Persian1
- Ismāʻīl II, Shah of Iran, 1533 or 1534-15771
- Isra' and Mi`raj of the Prophet Muhammad1
- Izmīrī, Muṣṭafá ibn Rajab, active 17th century1
- Iṣfahānī, Maḥmūd ibn ʻAbd al-Raḥmān, 1275 or 1276-1348 or 1349. Tasdīd al-ʻaqāʼid fī sharḥ Tajrīd al-qawāʻid1
- Iṣfahānī, Maḥmūd ibn ʻAbd al-Raḥmān, 1275 or 1276-1348 or 1349. Tasdīd al-ʻaqāʾid fī sharḥ Tajrīd al-qawāʻid1
- Jaʻbarī, Arslān ibn Yaʻqūb, -1300. Risālat al-tawḥīd1
- Jews1
- Jurjānī, ʻAlī ibn Muḥammad, al-Sayyid al-Sharīf, 1340-1413. Miṣbāḥ fī sharḥ al-Miftāḥ1
- Jurjānī, ʻAlī ibn Muḥammad, al-Sayyid al-Sharīf, 1340-1413. Ḥāshiyah ʻalá sharḥ Tajrīd al-iʻtiqād1
- Jāmiʻ al-Muẓaffarī (Damascus, Syria)1