- Iʻrāb ʻan qawāʻid al-iʻrāb (Ibn Hishām, ʻAbd Allāh ibn Yūsuf)1
- Iṣfahānī, Maḥmūd ibn ʻAbd al-Raḥmān, 1275 or 1276-1348 or 1349. Maṭāliʻ al-anẓār1
- Jaina literature, Prakrit1
- Jaina mythology1
- Jamʻ al-jawāmiʻ fī al-uṣūl (Subkī, Tāj al-Dīn ʻAbd al-Wahhāb ibn ʻAlī)1
- Japanese poetry1
- Jaʻbarī, Ibrāhīm ibn ʻUmar, 1242 or 1243-1331 or 1332. Wāḍiḥah fī tajwīd al-Fātiḥah1
- Jesus Christ1
- Jewish astronomy1
- Jewish festival-day sermons1
- Jewish illumination of books and manuscripts1
- Jewish magic1
- Jewish poetry1
- Jewish religious poetry, Judeo-Arabic1
- Jews--Persecutions1
- Jinn1
- John VIII Palaeologus, Emperor of the East, 1392-14481
- Judaism--Liturgy1
- Judaism--Prayers and devotions1
- Jurjānī, ʻAlī ibn Muḥammad, al-Sayyid al-Sharīf, 1340-14131