- Jāmiʻ al-ṣaḥīḥ (Muslim ibn al-Ḥajjāj al-Qushayrī)1
- Jāmī, 1414-1492. Risālah-i muʻammā1
- Jāmī, 1414-1492. Tafsīr al-fātiḥah al-sharīfah1
- Kaffawī, Muḥammad ibn Ḥumayd, -1760 or 1761. Ādāb al-baḥth1
- Kalbī, Diḥyah ibn Khalīfah, -approximately 6701
- Kamāl al-Dīn Muḥammad ibn Muḥammad, -1418. Naẓm Nukhbat al-fikar fī muṣṭalaḥ ahl al-athar1
- Karmī, Marʻī ibn Yūsuf, -1623 or 16241
- Kaʻbah (Mecca, Saudi Arabia)1
- Kemalpaşazade, 1468 or 1469-15341
- Kemalpaşazade, 1468 or 1469-1534. Tafsīr al-Fātiḥah1
- Khuzāʻī, Diʻbil ibn ʻAlī, 765 or 766-860 or 861. Qaṣīdah1
- Khūjahʹzādah, ʻAbd al-Naṣīr ibn ʻAbd Allāh, active 16th century. Taḥrīrāt ʻalá al-Ṭarīqah al-Muḥammadīyah1
- Kings and rulers--Religious aspects1
- Kinship (Islamic law)1
- Kisāʼī, ʻAlī ibn Ḥamzah, -804 or 8051
- Knowledge, Theory of (Islam)1
- Kumayl ibn Ziyād, 633 or 634-7011
- Legends1
- Logic, Medieval1
- Lumʻah al-Dimashqīyah (Shahīd al-Awwal, Muḥammad ibn Makkī)1