- Iran1
- Iran--Qazvīn1
- Ishārāt wa-al-tanbīhāt (Avicenna)1
- Islam--Customs and practices1
- Islamic countries1
- Islamic sermons, Arabic1
- Iṣfahānī, Maḥmūd ibn ʻAbd al-Raḥmān, 1275 or 1276-1348 or 1349. Maṭāliʻ al-anẓār1
- Judaism1
- 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 Maṭāliʻ al-anwār1
- Jīlī, ʻAbd al-Karīm ibn Ibrāhīm, 1365 or 1366- Risālat al-Tawḥīd1
- Kashshāf (Zamakhsharī, Maḥmūd ibn ʻUmar)1
- Knowledge, Theory of (Islam)1
- Kāfiyah (Ibn al-Ḥājib, ʻUthmān ibn ʻUmar)1
- Language and languages--Philosophy1
- Leather doublures1
- Malikites1
- Manuscripts1
- Miftāḥ al-ʻulūm (Sakkākī, Yūsuf ibn Abī Bakr)1
- Mineralogy1