- Iṣfahānī, Maḥmūd ibn ʻAbd al-Raḥmān, 1275 or 1276-1348 or 1349. Tashyīd al-Qawāʻid2
- Jaʻbarī, Arslān ibn Yaʻqūb, -1300. Risālat al-tawḥīd2
- Jaʻbarī, Ṣāliḥ ibn Thāmir, d. 1306. Naẓm al-laʼālī2
- Jesus Christ2
- Judges (Islamic law)2
- Jurjānī, ʻAlī ibn Muḥammad, al-Sayyid al-Sharīf, 1340-1413. Ḥāshiyah ʻalá Sharḥ Mukhtaṣar al-Muntahá2
- Jurjānī, ʻAlī ibn Muḥammad, al-Sayyid al-Sharīf, 1340-1413. Ḥāshiyat al-Tajrīd2
- Khadījah, -approximately 6192
- Khamrīyah (Ibn al-Fāriḍ, ʻUmar ibn ʻAlī)2
- Khawwāṣ, Aḥmad ibn ʻAbbād, 1378?-1454. Kāfī fī ʻilmay al-ʻarūḍ wa-al-qawāfī2
- Khayālī, Aḥmad ibn Mūsá, -1457? Ḥāshiyah ʻalá sharḥ al-Taftāzānī2
- Khulāṣat al-ḥisāb (ʻĀmilī, Bahāʼ al-Dīn Muḥammad ibn Ḥusayn)2
- Khūjahʹzādah, ʻAbd al-Naṣīr ibn ʻAbd Allāh, active 16th century. Taḥrīrāt ʻalá al-Ṭarīqah al-Muḥammadīyah2
- Kumayl ibn Ziyād, 633 or 634-7012
- Latin literature2
- Laylat al-Barāʼah2
- Lectionaries2
- Letter writing, Persian2
- Liturgics2
- Lāmīyat al-ʻArab (Shanfará)2