- Jāmiʻ al-ṣaḥīḥ (Muslim ibn al-Ḥajjāj al-Qushayrī)1
- Jāmī, 1414-14921
- Jāmī, 1414-1492. Muʻammayāt asmāʾ al-ḥusná1
- Jārabardī, Aḥmad ibn al-ḥusayn, d. 1346. Sharḥ al-Shāfiyah1
- Jārūdī, Nāṣir ibn Muḥammad, active 18th century1
- Jīlī, ʻAbd al-Karīm ibn Ibrāhīm, 1365 or 1366- Risālat al-Tawḥīd1
- Kabāʼir (Muḥammad ibn ʻAbd al-Wahhāb)1
- Kamāl al-Dīn Muḥammad ibn Muḥammad, -1418. Naẓm Nukhbat al-fikar fī muṣṭalaḥ ahl al-athar1
- Kansas--Lawrence1
- Karaite philosophy1
- Karaites--Doctrines1
- Karaites--Liturgy1
- Karaitic literature1
- 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 Śaivism--Doctrines1
- Kavaca1
- Kaʻb al-Aḥbār, -655 or 6561
- Khabīṣī, Muḥammad ibn Abī Bakr, active 14th century. Muwashshaḥ1
- Khalīl ibn Isḥāq al-Jundī, -1365? Mukhtaṣar Bāb al-yamīn1