- Jamʻ al-jawāmiʻ fī al-uṣūl (Subkī, Tāj al-Dīn ʻAbd al-Wahhāb ibn ʻAlī)1
- Jidd Ḥafṣī, ʻAlī ibn Luṭf Allāh, active 17th century-18th century1
- Judgment Day (Islam)1
- Jārūdī, Nāṣir ibn Muḥammad, active 18th century1
- Jīlī, ʻAbd al-Karīm ibn Ibrāhīm, 1365 or 1366- Risālat al-Tawḥīd1
- Kabāʼir (Muḥammad ibn ʻAbd al-Wahhāb)1
- Karmī, Marʻī ibn Yūsuf, -1623 or 16241
- Khalwatīyah1
- Knowledge, Theory of (Islam)1
- Kāfiyah (Ibn al-Ḥājib, ʻUthmān ibn ʻUmar)1
- Literature1
- Lāmīyat al-jumal (Mijrādī, Muḥammad ibn Muḥammad)1
- Malikites1
- Manuscripts1
- Mathematics, Arab1
- Medicine1
- Mukhtaṣar fī al-fiqh ʻalá madhhab al-Shāfiʻī (Abū Shujāʻ al-Iṣfahānī, Aḥmad ibn al-Ḥusayn)1
- Music1
- Muslim scholars1
- Muwashshah1