- Judgment Day (Islam)2
- Jurjānī, ʻAlī ibn Muḥammad, al-Sayyid al-Sharīf, 1340-1413. Risālah al-kubrá fī al-manṭiq1
- Jurjānī, ʻAlī ibn Muḥammad, al-Sayyid al-Sharīf, 1340-1413. Sharḥ Farāʼiḍ al-Sirājīyah1
- Jurjānī, ʻAlī ibn Muḥammad, al-Sayyid al-Sharīf, 1340-1413. Ḥāshiyah ʻalá Sharḥ Shamsīyah1
- Jāmiʻ al-ṣaḥīḥ (Bukhārī, Muḥammad ibn Ismāʻīl)1
- Kemalpaşazade, 1468 or 1469-1534. Tafsīr al-Fātiḥah1
- Khalwatīyah1
- Khawwāṣ, Aḥmad ibn ʻAbbād, 1378?-1454. Kāfī fī ʻilmay al-ʻarūḍ wa-al-qawāfī1
- Khulāṣat al-ḥisāb (ʻĀmilī, Bahāʼ al-Dīn Muḥammad ibn Ḥusayn)1
- Kings and rulers1
- Kāfiyah (Ibn al-Ḥājib, ʻUthmān ibn ʻUmar)2
- Language and languages--Philosophy1
- Logic10
- Magic squares3
- Mahdi1
- Manuscripts, Arabic79
- Manuscripts, Javanese1
- Manuscripts, Persian13
- Manuscripts, Turkish14
- Manuscripts, Urdu1