- Hermeneutics3
- Horses3
- Ibn Bābawayh al-Qummī, Muḥammad ibn ʻAlī, 918 or 919-991 or 992. Man lā yaḥḍuruhu al-faqīh3
- Ibn Zaydūn, Aḥmad ibn ʻAbd Allāh, 1003 or 1004-1071. Risālah al-hazalīyah3
- Ibn Ḥajar al-ʻAsqalānī, Aḥmad ibn ʻAlī, 1372-1449. Nuzʹhat al-naẓar fī tawḍīḥ Nukhbat al-fikar3
- Ijtihād (Islamic law)3
- India--Hyderabad3
- Iran--Ardabīl3
- Iran--Qazvīn3
- Iraq--Karbalāʼ3
- Isfarāyīnī, Muḥammad ibn Muḥammad, d. 1285. Lubb al-albāb fī ʻilm al-iʻrāb3
- Ishārāt wa-al-tanbīhāt (Avicenna)3
- Islamic literature, Arabic3
- Israel--Tsefat3
- Istiṣḥāb (Islamic law)3
- Iʻrāb ʻan qawāʻid al-iʻrāb (Ibn Hishām, ʻAbd Allāh ibn Yūsuf)3
- Iḥyāʼ ʻulūm al-dīn (Ghazzālī)3
- Jamʻ al-jawāmiʻ fī al-uṣūl (Subkī, Tāj al-Dīn ʻAbd al-Wahhāb ibn ʻAlī)3
- Jaʻbarī, Arslān ibn Yaʻqūb, -1300. Risālat al-tawḥīd3
- Jāmiʻ al-ṣaghīr (Suyūṭī)3