- Iʻrāb ʻan qawāʻid al-iʻrāb (Ibn Hishām, ʻAbd Allāh ibn Yūsuf)1
- Judgment Day (Islam)4
- Jumʻah1
- Jurjānī, ʻAlī ibn Muḥammad, al-Sayyid al-Sharīf, 1340-1413. Ḥāshiyah ʻalá Sharḥ Shamsīyah1
- Jāmiʻ al-ṣaḥīḥ (Bukhārī, Muḥammad ibn Ismāʻīl)1
- Jāmī, 1414-14921
- Jāmī, 1414-1492. Muʻammayāt asmāʾ al-ḥusná1
- Jāmī, 1414-1492. Poems1
- Jīlī, ʻAbd al-Karīm ibn Ibrāhīm, 1365 or 1366- Insān al-kāmil fī maʻrifat al-awākhir wa-al-awāʼil1
- Kamāl al-Dīn Muḥammad ibn Muḥammad, -1418. Naẓm Nukhbat al-fikar fī muṣṭalaḥ ahl al-athar1
- Kemalpaşazade, 1468 or 1469-1534. Risālah fī al-haykal al-insānī1
- Kemalpaşazade, 1468 or 1469-1534. Tafsīr al-Fātiḥah1
- Khalwatīyah1
- Khamrīyah (Ibn al-Fāriḍ, ʻUmar ibn ʻAlī)2
- Khiḍr (Legendary character)1
- Khiṭāʼī, ʻUthmān, active 15th century. Ḥāshiyah ʻalá al-Sharḥ al-mukhtaṣar1
- Kings and rulers1
- Knowledge, Theory of (Islam)1
- Kumayl ibn Ziyād, 633 or 634-7011
- Kāsānī, Aḥmad Khvājagī1