- Khalwatīyah1
- Khwājahʹzādah, Muṣṭafá ibn Yūsuf, -1487 or 14881
- Kings and rulers--Religious aspects1
- Kinship (Islamic law)1
- Kāfiyah (Ibn al-Ḥājib, ʻUthmān ibn ʻUmar)1
- Lacquered bindings1
- Language and languages--Style1
- Laylat al-Barāʼah1
- Legal documents1
- Legal forms1
- Liturgics--Calendar1
- Magic--Religious aspects--Islam1
- Manuscripts, Digital1
- Manuscripts, Panjabi1
- Manuscripts, Renaissance1
- Manār al-anwār fī al-uṣūl (Nasafī, ʻAbd Allāh ibn Aḥmad)1
- Maronite rite (Catholic Church)--Liturgy1
- Marriage--Religious aspects--Islam1
- Mary, Blessed Virgin, Saint, in the liturgy1
- Marāḥ al-arwāḥ (Ibn Masʻūd, Aḥmad ibn ʻAlī)1