- Ibn al-Hāʼim, Aḥmad ibn Muḥammad, -1412. Tuḥfah al-qudsīyah fī al-farāʼiḍ1
- Ibn al-Majdī, Aḥmad ibn Rajab, 1366-1447. Irshād al-ḥāʼir1
- 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
- Illumination of books and manuscripts, Carolingian1
- Ink1
- Insertions (Provenance)1
- Inventions1
- Isagoge (Porphyry)1
- Isfarāyīnī, Muḥammad ibn Muḥammad, -1285. Ḍawʼ al-Miṣbāḥ1
- Islam--Prayers and devotions1
- Islam--Rituals1
- Islamic New Year1
- Islamic astrology1
- Islamic education1
- Islamic ethics1
- Islamic etiquette1