- Ibn Ḥajar al-Haythamī, Aḥmad ibn Muḥammad, approximately 1503-approximately 1566. Tuḥfat al-muḥtāj bi-sharḥ al-Minhāj1
- Ibn Ḥajar al-ʻAsqalānī, Aḥmad ibn ʻAlī, 1372-1449. Nuzhat al-naẓar fī tawḍīḥ Nukhbat al-fikar1
- Ibn Ḥanbal, Aḥmad ibn Muḥammad, 780-8551
- Ibn Ḥijjah al-Ḥamawī, Taqī al-Dīn Abū Bakr ibn ʻAlī, -1434. Badīʻīyah1
- Ibn Ṭūlūn, Shams al-Dīn Muḥammad ibn ʻAlī, 1475-15461
- Ibrāhīm, Pasha, 1789-18481
- Idkāwī, Muḥammad. Fawāʼid al-muhimmāt fī maṭāliʻ al-awqāt1
- Ijmāʻ (Islamic law)1
- Ikmāl (Ibn Mākūlā, ʻAlī ibn Hibat Allāh)1
- Illegible markings1
- Illegitimacy1
- Illumination of books and manuscripts, Arab1
- Illumination of books and manuscripts, Italian1
- Illumination of books and manuscripts--Technique1
- Illusion (Philosophy)1
- Ilāhʹābādī, Muḥibb Allāh. Taswīyah1
- Ilāhʹābādī, ʻAbd Allāh ibn Shihāb. Sharḥ ʻalá ḍābiṭat sharāʼiṭ al-ashkāl al-arbaʻah li-Tahdhīb al-manṭiq1
- Imaginary letters1
- Imām al-Ḥaramayn al-Juwaynī, ʻAbd al-Malik ibn ʻAbd Allāh, 1028-1085. Burhān fī uṣūl al-fiqh1
- In Coena Domini bulls1