- Khawwāṣ, Aḥmad ibn ʻAbbād, 1378?-1454. Kāfī fī ʻilmay al-ʻarūḍ wa-al-qawāfī1
- Khiḍr (Legendary character)1
- Khiṭāʼī, ʻUthmān, active 15th century. Ḥāshiyah ʻalá al-Mukhtaṣar1
- Khulāṣat al-ḥisāb (ʻĀmilī, Bahāʼ al-Dīn Muḥammad ibn Ḥusayn)1
- Kings and rulers3
- Kirmānī, Maḥmūd ibn Muḥammad, 1329?-1404 or 1405. Farāʼiḍ al-ījāz1
- Kisāʼī, ʻAlī ibn Ḥamzah, -804 or 8051
- Kitāb (Sībawayh, ʻAmr ibn ʻUthmān)1
- Kubera (Hindu deity)1
- Kāfiyah (Ibn al-Ḥājib, ʻUthmān ibn ʻUmar)16
- Kālidāsa. Meghadūta1
- Kāshgharī, Sadīd al-Dīn, active 13th century? Munyat al-muṣallī wa-ghunyat al-mubtadiʼ1
- Language and languages--Philosophy7
- Latin literature1
- Law1
- Laylat al-Barāʼah1
- Learning and scholarship5
- Leather bindings5
- Leather doublures3
- Lebanon1