- Hebrew language--Grammar4
- Heraldry4
- Ibn Malak, ʻAbd al-Laṭīf ibn ʻAbd al-ʻAzīz. Sharḥ Manār al-anwār fī uṣūl al-fiqh4
- Ibn Wahbān, ʻAbd al-Wahhāb ibn Aḥmad, d. 1366 or 7. Qayd al-sharāʼid4
- Ibn al-Nafīs, ʻAlī ibn Abī al-Ḥazm, 1210 or 1211-1288. Mūjiz al-Qānūn4
- Ibn al-Sāʻātī, Aḥmad ibn ʻAlī, 1254-1294 or 5. Majmaʻ al-baḥrayn wa-multaqá al-nayyirayn4
- Ijtihād (Islamic law)4
- Illumination of books and manuscripts, Indic4
- India--Hyderabad4
- Indonesia--Java4
- Inscriptions, Arabic4
- Insertions (Production)4
- Intention--Religious aspects--Islam4
- Iraq--Karbalāʼ4
- Isfarāyīnī, Muḥammad ibn Muḥammad, d. 1285. Ḍawʼ ʻalá al-Miṣbāḥ4
- Islam and philosophy4
- Islamic heresies4
- Islamic illumination of books and manuscripts4
- Islamic interpretations of sacred works4
- Islamic literature4