- Iẓhār al-asrār (Birgivî Mehmet Efendi)1
- Jammāʻīlī, ʻAbd al-Ghanī ibn ʻAbd al-Wāḥid, 1146-12031
- Jawī Zādah, Muḥammad ibn Ilyās, -1547 or 1548. Risālah fī al-masḥ ʻalá al-khuffayn1
- Jewelry--Religious aspects--Islam1
- Jumʻah1
- Jurjānī, ʻAlī ibn Muḥammad, al-Sayyid al-Sharīf, 1340-1413. Ḥāshiyah ʻalá Sharḥ Mukhtaṣar al-Muntahá1
- Jurjānī, ʻAlī ibn Muḥammad, al-Sayyid al-Sharīf, 1340-1413. Ḥāshiyah ʻalá sharḥ Tajrīd al-iʻtiqād1
- Jāmiʻ al-Azhar1
- Jāmiʻ al-ṣaḥīḥ (Bukhārī, Muḥammad ibn Ismāʻīl)1
- Jāmī, 1414-1492. Risālah-i muʻammā1
- Kaffawī, Muḥammad ibn Ḥumayd, -1760 or 1761. Ādāb al-baḥth1
- Kamāl al-Dīn Muḥammad ibn Muḥammad, -1418. Naẓm Nukhbat al-fikar fī muṣṭalaḥ ahl al-athar1
- Kemalpaşazade, 1468 or 1469-1534. Tafsīr al-Fātiḥah1
- 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
- Kufic1
- Kumayl ibn Ziyād, 633 or 634-7011
- Madrasah al-Ṭūlūnīyah (Jerusalem)1
- Magic squares1