- Ibn al-ʻArabī, 1165-1240. Janāḥ al-ṭāʼir1
- Ibn Ḥajar al-Haythamī, Aḥmad ibn Muḥammad, approximately 1503-approximately 1566. Mawlid1
- Inheritance and succession (Islamic law)1
- Islam--Customs and practices1
- Islam--Rituals1
- Islamic poetry, Arabic1
- Islamic sermons1
- Isra' and Mi`raj of the Prophet Muhammad1
- Jamʻ al-jawāmiʻ fī al-uṣūl (Subkī, Tāj al-Dīn ʻAbd al-Wahhāb ibn ʻAlī)1
- Jāmiʻ al-Qarawīyīn (Fès, Morocco)1
- Jīlī, ʻAbd al-Karīm ibn Ibrāhīm, 1365 or 1366- Insān al-kāmil fī maʻrifat al-awākhir wa-al-awāʼil1
- Kabāʼir (Muḥammad ibn ʻAbd al-Wahhāb)1
- Karaite law1
- Karaite manuscripts1
- Kashshāf (Zamakhsharī, Maḥmūd ibn ʻUmar)1
- Knowledge, Theory of (Islam)1
- Language and languages--Philosophy1
- Learning and scholarship1
- Lebanon--Tripoli1
- Logic1