- Hair--Dyeing and bleaching1
- Hanafites13
- Hanbalites1
- History4
- Homosexuality--Religious aspects--Islam1
- Human-animal relationships3
- Ibn Nawbakht, Ibrāhīm, active 10th century. Yāqūt fī ʻilm al-kalām1
- Ibn Qaḍīb al-Bān, ʻAbd Allāh ibn Muḥammad, -1684 or 1685. Dālīyah1
- Ibn Saʻādah, Aḥmad ibn ʻAlī, active 13th century. Risālat al-ʻilm1
- Ibn Sharaf Shāh, Ḥasan ibn Muḥammad, 1247 or 1248-1315 or 1316. Wāfīyah fī sharḥ al-Kāfīyah1
- Ibn al-ʻArabī, 1165-12401
- Ibn al-ʻArabī, 1165-1240. Janāḥ al-ṭāʼir1
- Ibn al-ʻArabī, 1165-1240. Works1
- Ilāhʹābādī, Muḥibb Allāh. Taswīyah1
- Imamate1
- Imams (Shiites)1
- India1
- Inheritance and succession (Islamic law)3
- Intellect--Religious aspects--Islam1
- Intention--Religious aspects--Islam1