- Islam--Rituals1
- Islamic astrology1
- Islamic eschatology1
- Islamic etiquette1
- Islamic legends1
- Islamic painting1
- Islamic poetry, Arabic1
- Islamic poetry, Persian1
- Isra' and Mi`raj of the Prophet Muhammad1
- Istiṣḥāb (Islamic law)1
- Iṣfahānī, Maḥmūd ibn ʻAbd al-Raḥmān, 1275 or 1276-1348 or 1349. Maṭāliʻ al-anẓār1
- Judaism1
- Judgment Day (Islam)1
- Jurjānī, ʻAlī ibn Muḥammad, al-Sayyid al-Sharīf, 1340-1413. Ḥāshiyah ʻalá Sharḥ Mukhtaṣar al-Muntahá1
- Jāmī, 1414-1492. Risālah-i muʻammā1
- Jārbardī, Fakhr al-Dīn Aḥmad ibn al-Ḥasan, -1345. Mughnī fī ʻilm al-naḥw1
- Khulāṣat al-ḥisāb (ʻĀmilī, Bahāʼ al-Dīn Muḥammad ibn Ḥusayn)1
- Khānaqāh-i Niʻmat Allāhī1
- Knowledge, Theory of (Islam)1
- Leather doublures1