- Isbījābī, Aḥmad ibn Manṣūr, -approximately 1087. Sharḥ al-Mukhtaṣar fī al-fiqh1
- Isfarāyīnī, Muḥammad ibn Muḥammad, -1285. Ḍawʼ al-Miṣbāḥ1
- Islam--Apologetic works1
- Islam--Functionaries1
- Islamic education1
- Islamic eschatology1
- Islamic funeral rites and ceremonies1
- Islamic heresies1
- Islamic magic1
- Islamic poetry, Arabic1
- Islamic sermons1
- Ismāʻīl ibn ʻAbd Allāh, 1792 or 1793-18631
- Isnawī, ʻAbd al-Raḥīm ibn al-Ḥasan, 1305-13701
- Israel--Acre1
- Israel--Tsefat1
- Istiṣḥāb (Islamic law)1
- Iʻrāb ʻan qawāʻid al-iʻrāb (Ibn Hishām, ʻAbd Allāh ibn Yūsuf)1
- Jawharat al-tawḥīd (Laqānī, Ibrāhīm ibn Ibrāhīm)1
- Jinn1
- Jurisprudence1