- Karaites--Doctrines1
- Karaites--Liturgy1
- Karaitic literature1
- Karma3
- Karmī, Marʻī ibn Yūsuf, -1623 or 16241
- Karmī, Marʻī ibn Yūsuf, -1623 or 1624. Ghāyat al-muntahá fī al-jamʻ bayna al-Iqnāʻ wa-al-Muntahá1
- Kashmir Śaivism2
- Kashmir Śaivism--Doctrines1
- Kavaca1
- Kaʻb al-Aḥbār, -655 or 6561
- Ketubah37
- Khabīṣī, Muḥammad ibn Abī Bakr, active 14th century. Muwashshaḥ1
- Khafrī, Muḥammad, -1407 or 1408. Ḥāshīyah ʻalá Sharḥ al-Qūshjī ʻalá al-Tajrīd2
- Khalwatīyah2
- Khalīl ibn Isḥāq al-Jundī, -1365? Mukhtaṣar Bāb al-yamīn1
- Khamrīyah (Ibn al-Fāriḍ, ʻUmar ibn ʻAlī)1
- Khamti language1
- Khiḍr (Legendary character)1
- Khulāṣat al-ḥisāb (ʻĀmilī, Bahāʼ al-Dīn Muḥammad ibn Ḥusayn)2
- Khuzāʻī, Diʻbil ibn ʻAlī, 765 or 766-860 or 861. Qaṣīdah1