- Italy1
- Iṣfahānī, Maḥmūd ibn ʻAbd al-Raḥmān, 1275 or 1276-1348 or 1349. Tasdīd al-qawāʼid fī sharḥ Tajrīd al-ʻaqāʼid1
- Iẓhār al-asrār (Birgivî Mehmet Efendi)1
- Jaghmīnī, Maḥmūd ibn Muḥammad, -1221?1
- Jawshan al-kabīr1
- Jidd Ḥafṣī, ʻAlī ibn Luṭf Allāh, active 17th century-18th century1
- Judaism1
- Judgment Day (Islam)1
- Jumʻah2
- Jurjānī, ʻAlī ibn Muḥammad, al-Sayyid al-Sharīf, 1340-1413. Ḥāshiyah ʻalá Taḥrīr al-Qawāʻid al-manṭiqīyah1
- Jurjānī, ʻAlī ibn Muḥammad, al-Sayyid al-Sharīf, 1340-1413. Ḥāshiyat al-Tajrīd1
- Jurjānī, ʻAlī ibn Muḥammad, al-Sayyid al-Sharīf, 1340-1413. Ḥ̣āshiyah ʻalá Lawāmiʻ al-asrār1
- Jāmiʻ al-ṣaghīr (Suyūṭī)1
- Jāmiʻ al-ṣaḥīḥ (Bukhārī, Muḥammad ibn Ismāʻīl)1
- Jāmī, 1414-1492. Poems1
- Jāmī, 1414-1492. Tafsīr al-fātiḥah al-sharīfah1
- Jārbardī, Fakhr al-Dīn Aḥmad ibn al-Ḥasan, -1345. Mughnī fī ʻilm al-naḥw1
- 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