- History, Military2
- Ibn Bābawayh al-Qummī, Muḥammad ibn ʻAlī, 918 or 919-991 or 992. Man lā yaḥḍuruhu al-faqīh2
- Ibn Qaḍīb al-Bān, ʻAbd Allāh ibn Muḥammad, -1684 or 1685. Dālīyah2
- Ibn al-Khayyāṭ, Abū Bakr ibn Muḥammad, -14082
- Ibn al-Shahīd al-Thānī, al-Ḥasan, 1551 or 1552-1602 or 1603. Maʻālim al-dīn wa-malādhdh al-mujtahidīn2
- Ibn al-ʻArabī, 1165-1240. Manẓūmat Kashf al-Rān2
- Ibn Ḥajar al-Haythamī, Aḥmad ibn Muḥammad, approximately 1503-approximately 1566. Fatḥ al-mubīn li-sharḥ al-Arbaʻīn2
- Ijtihād (Islamic law)2
- Imāmʹzādah, Muḥammad ibn Abī Bakr, 1097 or 1098-1177 or 1178. Shirʻat al-Islām2
- India--Hyderabad2
- Isfarāyīnī, Muḥammad ibn Muḥammad, -1285. Ḍawʼ al-Miṣbāḥ2
- Islam--Miscellanea--Early works to 18002
- Islamic astrology2
- Islamic calendar2
- Islamic literature, Arabic2
- Islamic poetry2
- Islamic sects2
- Israel--Acre2
- Judaism2
- Judges (Islamic law)2