- Kitāb fī al-fiqh al-Shāfiʻī1
- Korea1
- Kufr (Islam)1
- Kumayl ibn Ziyād, 633 or 634-7011
- Kāfiyajī, Muḥammad ibn Sulaymān, -1474. Sharḥ al-Iʻrāb ʻan qawāʻid al-iʻrāb1
- Kāfī al-mubtadiʼ min al-ṭullāb (Ibn Balabān, Muḥammad ibn Badr al-Dīn)1
- Kāshī, Jamshīd ibn Masʻūd, -approximately 1436. Miftāḥ al-ḥussāb1
- Kāshī, Jamshīd ibn Masʻūd, -approximately 1436. Sullam al-samāʼ1
- Kātī, Ḥusām al-Dīn al-Ḥasan, -1358 or 1359. Qāla aqūl1
- Kūrānī, Ibrāhīm ibn Ḥasan, 1616 or 1617-approximately 16901
- 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
- Kūrānī, Ṭānā ibn Aḥmad, d. 1884? Naẓm Mukhtaṣar al-Manār1
- Land tenure (Islamic law)1
- Landscapes1
- Languages, Secret1
- Latin language--Grammar1
- Laughter--Religious aspects--Islam1
- Laylat al-Barāʼah1
- Laylat al-Qadr1