- Jaʻfar ibn Muḥammad Bashrawānī1
- Jaʻfar ibn Muṣṭafá Nakdahʹwī1
- Johann von Neuburg1
- Johannes of Regensburg1
- Jābir ibn Ibrāhīm, active 16th century1
- Jābir ibn Sālim Shihāb al-Baghdādī1
- Kamal al-Din al-Ghazzi1
- Kastamūnī, ʻAbd al-Raḥmān1
- Khalīlī, Muḥammad ibn ʻAbd al-Raḥmān1
- Khaṭīb, Muḥyī al-Dīn ibn ʻAlī1
- Khilāf, Muḥammad ibn Muḥammad1
- Khūjah, Muḥammad Aḥmad1
- Ladrāwī, ʻAbd al-Karīm ibn Muḥammad, active 14th century?1
- Luxeuil Abbey1
- Makkī, Muḥammad, active 18th century?1
- Makkī, ʻAbd al-Qādir ibn Sulaymān1
- Mallawī, ʻAbd al-Karīm Aḥmad1
- Manūfī, ʻĀmir Muḥammad1
- Maḥallī, Aḥmad ibn Muḥammad1
- Maḥmūd ibn Abī al-Ḥasan Maḥallī1