- Khiḍr (Legendary character)2
- Khulāṣat al-ḥisāb (ʻĀmilī, Bahāʼ al-Dīn Muḥammad ibn Ḥusayn)2
- Kinship (Islamic law)2
- Kirmāstī, Yūsuf ibn ḥusayn, d. 1500. Wajīz fī al-uṣūl2
- Knowledge, Theory of (Islam)2
- Kāfī al-mubtadiʼ min al-ṭullāb (Ibn Balabān, Muḥammad ibn Badr al-Dīn)2
- Laylat al-Qadr2
- Learning and scholarship2
- Letter writing, Persian2
- Loans (Islamic law)2
- Love2
- Lāmīyat al-ʻArab (Shanfará)2
- Manuscripts, Amharic2
- Manuscripts, Aramaic2
- Manuscripts, Armenian2
- Manuscripts, Hindi2
- Manuscripts, Japanese2
- Manuscripts, Javanese2
- Manuscripts, Latin2
- Manuscripts, Portuguese2