- Horology1
- Horoscopes1
- Horses1
- Humor1
- Hunting1
- Hydrology1
- Hymns, Latin1
- Hāmilī, Abū Bakr ibn ʻAlī ibn Mūsá, d. 1367. Durr al-muhtadī wa-dhukhr al-muqtadiʼ1
- Ibn Abī Jumhūr al-Aḥsāʼī, Muḥammad ibn ʻAlī, -approximately 1473. Masālik al-afhām1
- Ibn Wadʻān, Muḥammad ibn ʻAlī, d. 1101. Arbaʻīn al-Wadʻānīyah1
- Ibn Wahbān, ʻAbd al-Wahhāb ibn Aḥmad, d. 1366 or 7. Qayd al-sharāʼid1
- Ibn al-Hāʼim, Aḥmad ibn Muḥammad, d. 1412. Nuzhah fī al-ḥisāb1
- Ibn al-Nafīs, ʻAlī ibn Abī al-Ḥazm, 1210 or 1211-1288. Mūjaz fī al-ṭibb1
- Ibn al-Nafīs, ʻAlī ibn Abī al-Ḥazm, 1210 or 1211-1288. Mūjiz al-Qānūn1
- Ibn al-Nafīs, ʻAlī ibn Abī al-ḥazm, 1210 or 11-1288. Mūjiz al-Qānūn1
- Ibn al-Nāẓim, Muḥammad ibn Muḥammad, d. 1287 or 8. Sharḥ al-Alfīyah1
- Ibn al-Shahīd al-Thānī, al-Ḥasan, 1551 or 1552-1602 or 1603. Maʻālim al-dīn wa-malādhdh al-mujtahidīn1
- Ibrāhīm ibn Adʹham, -approximately 7771
- Idra zuta1
- Ijtihād (Islamic law)1