- Judaism--Ari rite1
- Judaism--Doctrines1
- Judaism--Liturgy--Texts1
- Judges (Islamic law)1
- Jurjānī, ʻAlī ibn Muḥammad, al-Sayyid al-Sharīf, 1340-14131
- Jurjānī, ʻAlī ibn Muḥammad, al-Sayyid al-Sharīf, 1340-1413. Risālah al-kubrá fī al-manṭiq1
- Jābir ibn Ḥayyān1
- Jārabardī, Aḥmad ibn al-Ḥusayn, -1346. Mughnī fī ʻilm al-naḥw1
- Jārbardī, Fakhr al-Dīn Aḥmad ibn al-Ḥasan, d. 1345. Mughnī fī ʻilm al-naḥw1
- Jīlī, ʻAbd al-Karīm ibn Ibrāhīm, 1365 or 1366- Insān al-kāmil fī maʻrifat al-awākhir wa-al-awāʼil1
- Kabbalat Shabbat1
- Kamāl al-Dīn Muḥammad ibn Muḥammad, d. 1418. Naẓm Nukhbat al-fikar fī muṣṭalaḥ ahl al-athar1
- Karaite law1
- Karaites1
- Karaites--Liturgy1
- Kardarī, Ibn al-Bazzāz, -1424. Fatāwá al-Bazzāzīyah1
- Karo, Joseph ben Ephraim, 1488-15751
- Kashmir Śaivism1
- Kaydānī. Fiqh al-Kaydānī1
- Kemalpaşazade, 1468 or 1469-1534. Tafsīr al-Fātiḥah1