- Inheritance and succession (Islamic law)1
- Interest (Islamic law)1
- Iran1
- Iran--Mashhad1
- Islam--Customs and practices1
- Islam--Rituals1
- Islamic Empire1
- Islamic bindings1
- Islamic countries1
- Islamic education1
- Islamic etiquette1
- Jumʻah1
- Jurjānī, ʻAlī ibn Muḥammad, al-Sayyid al-Sharīf, 1340-14131
- Jāmī, 1414-1492. Risālah-i muʻammā1
- Jārbardī, Fakhr al-Dīn Aḥmad ibn al-Ḥasan, d. 1345. Mughnī fī ʻilm al-naḥw1
- Kaʻbah (Mecca, Saudi Arabia)1
- Kemalpaşazade, 1468 or 1469-15341
- Khamrīyah (Ibn al-Fāriḍ, ʻUmar ibn ʻAlī)1
- Khiṭāʼī, ʻUthmān, active 15th century. Ḥāshiyah ʻalá al-Sharḥ al-mukhtaṣar1
- Khulāṣat al-ḥisāb (ʻĀmilī, Bahāʼ al-Dīn Muḥammad ibn Ḥusayn)1