- Italy--Lombardy1
- Italy--Lucca1
- Italy--Messina1
- Italy--Nola1
- Italy--Pescia1
- Italy--Pieve di Cadore1
- Italy--Umbria1
- 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
- Iṣfahānī, Maḥmūd ibn ʻAbd al-Raḥmān, 1275 or 1276-1348 or 1349. Tashyīd al-Qawāʻid1
- Jaghmīnī, Maḥmūd ibn Muḥammad, -1221?1
- Jamʻ al-jawāmiʻ fī al-uṣūl (Subkī, Tāj al-Dīn ʻAbd al-Wahhāb ibn ʻAlī)1
- Japan1
- Jewelled bindings1
- Jewish ethics in literature1
- Jewish religious poetry, Hebrew1
- Jews--Conversion to Christianity1
- Jews--Legal status, laws, etc.1
- Jighmīnī, Maḥmūd ibn Muḥammad, -1221? Mulakhkhaṣ fī al-hayʼah1
- Job (Biblical figure)1