- Jāmiʻ al-ṣaḥīḥ (Muslim ibn al-Ḥajjāj al-Qushayrī)7
- Jāmī, 1414-14921
- Jāmī, 1414-1492. Risālah-i muʻammā1
- Jāmī, 1414-1492. Tafsīr al-fātiḥah al-sharīfah1
- Jīlī, ʻAbd al-Karīm ibn Ibrāhīm, 1365 or 1366- Risālat al-Tawḥīd1
- Kaddish1
- Kaffawī, Ayyūb ibn Mūsá, 1618 or 1619-1682 or 1683. Kullīyāt Abī al-Baqāʼ1
- 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
- Kansas--Lawrence5
- Kanz al-daqāʼiq (Nasafī, ʻAbd Allāh ibn Aḥmad)3
- Kapitalbünde1
- Karaite law1
- Karaite manuscripts3
- Karaites (Jewish law)1
- Karaites--Liturgy2
- Karaitic literature4
- Kashshāf (Zamakhsharī, Maḥmūd ibn ʻUmar)19
- Kavvanot (Cabala)3