- Jīlī, ʻAbd al-Karīm ibn Ibrāhīm, 1365 or 1366- Insān al-kāmil fī maʻrifat al-awākhir wa-al-awāʼil1
- Kaffawī, Muḥammad ibn Ḥumayd, -1760 or 1761. Ādāb al-baḥth1
- Kemalpaşazade, 1468 or 1469-1534. Tafsīr al-Fātiḥah1
- Kemalpaşazade, 1468 or 9-1534. Risālah fī al-haykal al-insānī1
- Khafrī, Muḥammad, -1407 or 1408. Ḥāshīyah ʻalá Sharḥ al-Qūshjī ʻalá al-Tajrīd1
- Khalwatī, Ayyūb ibn Aḥmad, -1660 or 1661. Mawwāl1
- Khayālī, Aḥmad ibn Mūsá, -1457? Sharḥ Qaṣīdah al-nūnīyah1
- Khiḍr (Legendary character)1
- Khvānsārī, Jamāl al-Dīn, -1713? Ḥāshīyah ʻalá Tajrīd al-ʻaqāʼid1
- Kāfiyah (Ibn al-Ḥājib, ʻUthmān ibn ʻUmar)1
- Kūrānī, Ibrāhīm ibn Ḥasan, 1616 or 1617-approximately 1690. Maslak al-jalī fī ḥukm shaṭḥ al-walī1
- Language and languages--Philosophy1
- Laylat al-Qadr1
- Lāmīyat al-ʻArab (Shanfará)1
- Magic squares1
- Malikites1
- Manuscripts, Malay1
- Manuscripts, Tashelhit1
- Manāzil al-sāʼirīn (Anṣārī al-Harawī, ʻAbd Allāh ibn Muḥammad)1
- Marriage (Islamic law)1