- Iqnāʼ (Ḥujāwī, Mūsá ibn Aḥmad)3
- Iran--Ardabīl3
- Iran--Tabrīz3
- Iraq--Karbalāʼ3
- Isfarāyīnī, Muḥammad ibn Muḥammad, d. 1285. Lubb al-albāb fī ʻilm al-iʻrāb3
- Ishrāqīyah3
- Islamic poetry, Turkish3
- Israel--Acre3
- Judges (Islamic law)3
- Jurjānī, ʻAlī ibn Muḥammad, al-Sayyid al-Sharīf, 1340-1413. Sharḥ Farāʼiḍ al-Sirājīyah3
- Kaydānī. Fiqh al-Kaydānī3
- Khabbāzī, ʻUmar ibn Muḥammad, 1231 or 2-1292. Mughnī fī uṣūl al-fiqh3
- Khawwāṣ, Aḥmad ibn ʻAbbād, 1378?-1454. Kāfī fī ʻilmay al-ʻarūḍ wa-al-qawāfī3
- Kings and rulers--Religious aspects3
- Laylat al-Qadr3
- Legacies (Islamic law)3
- Letter writing, Arabic3
- Liturgics3
- Love poetry, Arabic3
- Manẓūmah al-Bayqūnīyah (Bayqūnī, Ṭāhā ibn Muḥammad)3