- Kabāʼir (Muḥammad ibn ʻAbd al-Wahhāb)1
- Khabīṣī, Muḥammad ibn Abī Bakr, active 14th century. Muwashshaḥ1
- Khiḍr (Legendary character)1
- Khūjahʹzādah, ʻAbd al-Naṣīr ibn ʻAbd Allāh, active 16th century. Taḥrīrāt ʻalá al-Ṭarīqah al-Muḥammadīyah1
- Kings and rulers--Duties1
- Kinship (Islamic law)1
- Korea1
- Kumayl ibn Ziyād, 633 or 634-7011
- Legends1
- Legislation (Jewish law)1
- Letter writing, Turkish1
- Literature1
- Lāmīyat al-afʻāl (Ibn Mālik, Muḥammad ibn ʻAbd Allāh)1
- Lāmīyat al-jumal (Mijrādī, Muḥammad ibn Muḥammad)1
- Majima, Seigan, -13791
- Manuscript maps1
- Manuscripts, Ethiopic1
- Manuscripts, Japanese1
- Manuscripts, Javanese1
- Manuscripts, Medical1