- Iḥyāʼ ʻulūm al-dīn (Ghazzālī)1
- Jamʻ al-jawāmiʻ fī al-uṣūl (Subkī, Tāj al-Dīn ʻAbd al-Wahhāb ibn ʻAlī)1
- Judas Iscariot1
- Judgment Day (Islam)1
- Jumʻah1
- Jurjānī, ʻAlī ibn Muḥammad, al-Sayyid al-Sharīf, 1340-1413. Miṣbāḥ fī sharḥ al-Miftāḥ1
- Jurjānī, ʻAlī ibn Muḥammad, al-Sayyid al-Sharīf, 1340-1413. Ḥāshiyah ʻalá Taḥrīr al-qawāʻid al-manṭiqīyah1
- Jāmiʻ al-Muẓaffarī (Damascus, Syria)1
- Jāmiʻ al-Qarawīyīn (Fès, Morocco)1
- Jāmiʻ al-Umawī al-Kabīr (Aleppo, Syria)1
- Jārbardī, Fakhr al-Dīn Aḥmad ibn al-Ḥasan, -1345. Mughnī fī ʻilm al-naḥw1
- Khabbāzī, ʻUmar ibn Muḥammad, 1231 or 1232-1292. Mughnī fī uṣūl al-fiqh1
- Khilāṭī, Muḥammad ibn ʻAbbād, -1254. Talkhīṣ al-Jāmiʻ al-kabīr1
- Kings and rulers1
- Kāshī, Yaḥyá ibn Aḥmad. Qarah ḥāshiyah1
- Latin language--Grammar1
- Law1
- Liturgics1
- Love1
- Love poetry, Arabic1