- Hair--Religious aspects--Islam2
- Headgear--Religious aspects--Islam2
- Hermeneutics2
- Historical geography2
- Homosexuality--Religious aspects--Islam2
- Horsemanship2
- Ibadites2
- Ibn Nujaym, Zayn al-Dīn ibn Ibrāhīm, -1563. Ṣaghāʼir wa-al-kabāʼir2
- Ibn Taymīyah, Aḥmad ibn ʻAbd al-Ḥalīm, 1263-13282
- Ibn Wahbān, ʻAbd al-Wahhāb ibn Aḥmad, d. 1366 or 7. Qayd al-sharāʼid2
- Ibn Zaydūn, Aḥmad ibn ʻAbd Allāh, 1003 or 1004-1071. Risālah al-hazalīyah2
- Ibn al-Hāʼim, Aḥmad ibn Muḥammad, -1412. Lumaʻ al-yasīrah fī ʻilm al-ḥisāb2
- Ibn al-Jazarī, Muḥammad ibn Muḥammad, 1350-1429. Arbaʻūn masʼalah min masāʼil muskhilah2
- Ibn al-ʻArabī, 1165-12402
- Ibn al-ʻArabī, 1165-1240. Manẓūmat Kashf al-Rān2
- Indexes2
- Insertions (Provenance)2
- Iran--Tabrīz2
- Iraq2
- Iraq--Baghdad2