- Jīlī, ʻAbd al-Karīm ibn Ibrāhīm, 1365 or 1366- Insān al-kāmil fī maʻrifat al-awākhir wa-al-awāʼil1
- Khamrīyah (Ibn al-Fāriḍ, ʻUmar ibn ʻAlī)1
- Khūjahʹzādah, ʻAbd al-Naṣīr ibn ʻAbd Allāh, active 16th century. Taḥrīrāt ʻalá al-Ṭarīqah al-Muḥammadīyah1
- Knowledge, Theory of (Islam)1
- Kufr (Islam)1
- Kumayl ibn Ziyād, 633 or 634-7011
- Kāfiyah (Ibn al-Ḥājib, ʻUthmān ibn ʻUmar)1
- Language and languages--Style1
- Liquor laws (Islamic law)1
- Magic squares1
- Mahdi1
- Malikites1
- Martyrdom--Islam1
- Mas̲navī (Jalāl al-Dīn Rūmī, Maulana)1
- Mathematics, Arab1
- Mawāqif fī ʻilm al-kalām (Ījī, ʻAḍud al-Dīn ʻAbd al-Raḥmān ibn Aḥmad)1
- Mineralogy1
- Miracles (Islam)1
- Miscellanea1
- Months1