- Kings and rulers--Conduct of life1
- Kings and rulers--Religious aspects--Islam1
- Kings and rulers--Succession1
- Kinot1
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- Kitāb fī al-fiqh al-Shāfiʻī1
- Knowledge, Theory of (Religion)1
- Korea1
- Kufic1
- Kufr (Islam)1
- Kurds1
- Kyi︠e︡vo-Pechersʹka lavra1
- Kāfiyajī, Muḥammad ibn Sulaymān, -1474. Sharḥ al-Iʻrāb ʻan qawāʻid al-iʻrāb1
- Kāfī fī al-ʻarūḍ wa-al-qawāfī (Tibrīzī, Yaḥyá ibn ʻAlī)1
- Kālī (Hindu deity)1
- Kāshī, Jamshīd ibn Masʻūd, -approximately 1436. Sullam al-samāʼ1
- Kāsānī, Aḥmad Khvājagī1
- Kātī, Ḥusām al-Dīn al-Ḥasan, -1358 or 1359. Qāla aqūl1
- Kūrānī, Ibrāhīm ibn Ḥasan, 1616 or 1617-approximately 16901
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