- Khalwatī, Ayyūb ibn Aḥmad, -1660 or 1661. Mawwāl1
- Khalwatīyah1
- Kharijites1
- Kufr (Islam)1
- Kūrānī, Ibrāhīm ibn Ḥasan, 1616 or 1617-approximately 1690. Maslak al-jalī fī ḥukm shaṭḥ al-walī1
- Kūrānī, Ibrāhīm ibn Ḥasan, 1616 or 1617-approximately 1690. Maslak al-taʻrīf1
- Laylat al-Qadr1
- Learning and scholarship1
- Legacies (Islamic law)1
- Legal forms1
- Libraries1
- Longevity--Religious aspects--Islam1
- Love--Philosophy1
- Lāmīyat al-ʻArab (Shanfará)1
- Magic squares1
- Manuscripts1
- Manuscripts, Malay1
- Manuscripts, Oriental1
- Manuscripts, Tashelhit1
- Manāzil al-sāʼirīn (Anṣārī al-Harawī, ʻAbd Allāh ibn Muḥammad)1