- Kashmir Śaivism--Doctrines1
- Kavaca1
- Khabīṣī, Muḥammad ibn Abī Bakr, active 14th century. Muwashshaḥ1
- Khalwatīyah1
- Khamrīyah (Ibn al-Fāriḍ, ʻUmar ibn ʻAlī)1
- Khiḍr (Legendary character)1
- Khūjahʹzādah, ʻAbd al-Naṣīr ibn ʻAbd Allāh, active 16th century. Taḥrīrāt ʻalá al-Ṭarīqah al-Muḥammadīyah1
- Kings and rulers--Religious aspects--Hinduism1
- Kisāʼī, ʻAlī ibn Ḥamzah, -804 or 8051
- Knowledge, Theory of (Hinduism)1
- Kumayl ibn Ziyād, 633 or 634-7011
- Kālī (Hindu deity)1
- Kārtavīryārjuna (Hindu deity)1
- Ladino poetry1
- Laments1
- Language and languages--Philosophy1
- Leather doublures1
- Legal documents1
- Legislation (Jewish law)1
- Letter writing, Persian1