- Israel--Acre1
- Iʻrāb ʻan qawāʻid al-iʻrāb (Ibn Hishām, ʻAbd Allāh ibn Yūsuf)1
- Jalāl al-Dīn Rūmī, Maulana, 1207-12731
- Jawharat al-tawḥīd (Laqānī, Ibrāhīm ibn Ibrāhīm)1
- Jaʻbarī, Arslān ibn Yaʻqūb, -1300. Risālat al-tawḥīd1
- Jaʻbarī, Ibrāhīm ibn ʻUmar, 1242 or 3-1331 or 2. Jamīlat arbāb al-marāṣid fī sharḥ ʻAqīlat atrāb al-qaṣāʾid1
- Jidd Ḥafṣī, ʻAlī ibn Luṭf Allāh, active 17th century-18th century1
- John, of Damascus, Saint1
- Juhd al-muqill (Sājaqlīzādah, Muḥammad ibn Abī Bakr)1
- Jumʻah1
- Jādarī, ʻAbd al-Raḥmān ibn Abī Ghālib, 1384 or 1385-1435 or 1436. Rawḍat al-azhār fī ʻilm waqt al-layl wa-al-nahār1
- Jāmiʻ al-ṣaghīr (Suyūṭī)1
- Jāmiʻ al-ṣaḥīḥ (Muslim ibn al-Ḥajjāj al-Qushayrī)1
- Jāmī, 1414-14921
- 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
- Kalanbawī, Ismāʻīl ibn Muṣṭafá, -1790 or 1791. Burhān fī ʻilm al-mīzān1
- Kamāl al-Dīn Muḥammad ibn Muḥammad, -1418. Naẓm Nukhbat al-fikar fī muṣṭalaḥ ahl al-athar1