- Kabāʼir (Muḥammad ibn ʻAbd al-Wahhāb)1
- Karmī, Marʻī ibn Yūsuf, -1623 or 16241
- Kaʻbah (Mecca, Saudi Arabia)1
- Kemalpaşazade, 1468 or 1469-15341
- Kemalpaşazade, 1468 or 1469-1534. Iṣlāḥ wa-al-īḍāḥ1
- Khadījah, -approximately 6191
- Kings and rulers--Religious aspects1
- Kinship (Islamic law)1
- Laughter--Religious aspects--Islam1
- Legends1
- Libel and slander--Religious aspects--Islam1
- Literary style1
- Literature1
- Liturgics1
- Love poetry, Arabic1
- Lāmīyat al-jumal (Mijrādī, Muḥammad ibn Muḥammad)1
- Mabādiʼ fī al-taṣrīf (Zanjānī, ʻAbd al-Wahhāb ibn Ibrāhīm)1
- Mahdi1
- Mamelukes1
- Manhaj al-muntakhab ilá uṣūl ʻuziyat lil-madhhab (Zaqqāq, ʻAlī ibn Qāsim)1