- Isfarāyīnī, Muḥammad ibn Muḥammad, d. 1285. Ḍawʼ ʻalá al-Miṣbāḥ2
- Islam--Theology2
- Islamic etiquette2
- Islamic poetry, Arabic2
- Islamic stories2
- Italy--Padua2
- Italy--Rivarolo Ligure2
- Italy--Venice2
- Iẓhār al-asrār (Birgivî Mehmet Efendi)2
- Jainism2
- Japan2
- Jaʻbarī, Ibrāhīm ibn ʻUmar, 1242 or 1243-1331 or 1332. Wāḍiḥah fī tajwīd al-Fātiḥah2
- Jewish calendar2
- Jewish interpretations of Jesus Christ2
- Jewish martyrs2
- Joseph (Son of Jacob)2
- Judaism--Prayers and devotions2
- Judeo-Arabic language2
- Jurjānī, ʻAlī ibn Muḥammad, al-Sayyid al-Sharīf, 1340-1413. Sharḥ Farāʼiḍ al-Sirājīyah2
- Jurjānī, ʻAlī ibn Muḥammad, al-Sayyid al-Sharīf, 1340-1413. Ḥāshiyah ʻalá Sharḥ Ḥikmat al-ʻayn2