- Islam--Apologetic works2
- Islamic New Year2
- Islamic calendar2
- Islamic literature2
- Islamic occultism2
- Islamic sects2
- Islamic sermons, Persian2
- Isnawī, ʻAbd al-Raḥīm ibn al-Ḥasan, 1305-1370. Sharḥ al-Minhāj2
- Jaʻbarī, Ibrāhīm ibn ʻUmar, 1242 or 1243-1331 or 1332. Wāḍiḥah fī tajwīd al-Fātiḥah2
- Judaism2
- Jurjānī, ʻAlī ibn Muḥammad, al-Sayyid al-Sharīf, 1340-1413. Ḥāshiyah ʻalá Taḥrīr al-qawāʻid al-manṭiqīyah2
- Khalwatīyah2
- Khaṭīb al-Baghdādī, Abū Bakr Aḥmad ibn ʻAlī, 1002-1071. Asmāʼ al-mubhamah fī al-anbāʼ al-muḥkamah2
- Khulāṣat al-ḥisāb (ʻĀmilī, Bahāʼ al-Dīn Muḥammad ibn Ḥusayn)2
- Kings and rulers--Duties2
- Knowledge, Theory of (Islam)2
- Land tenure--Law and legislation2
- Language and languages--Style2
- Letter writing, Persian2
- Letter writing, Turkish2