- Ibn al-Muqrī, Ismāʻīl ibn Abī Bakr, 1354-1433 or 1434. Badīʻīyah1
- Ibn al-Nafīs, ʻAlī ibn Abī al-Ḥazm, 1210 or 1211-1288. Mūjiz1
- Ibn al-Sarrāj, Aḥmad ibn Abī Bakr, active 14th century1
- Ibn Ḥajar al-Haythamī, Aḥmad ibn Muḥammad, approximately 1503-approximately 1566. Fatḥ al-mubīn li-sharḥ al-Arbaʻīn1
- Ibn Ḥajar al-Haythamī, Aḥmad ibn Muḥammad, approximately 1503-approximately 1566. Iʻlām bi-qawāṭiʻ al-Islām1
- Isfarāyīnī, Muḥammad ibn Muḥammad, -1285. Ḍawʼ al-Miṣbāḥ1
- Islam--Prayers and devotions1
- Islam--Rituals1
- Islamic cosmology1
- Islamic education1
- Islamic ethics1
- Islamic occultism1
- Islamic poetry, Arabic1
- Jaghmīnī, Maḥmūd ibn Muḥammad, -1221?1
- Jābir ibn Ḥayyān1
- Khamrīyah (Ibn al-Fāriḍ, ʻUmar ibn ʻAlī)1
- Khiḍr (Legendary character)1
- Kumayl ibn Ziyād, 633 or 634-7011
- Leather doublures1
- Mahdi1