Author
- Jaafar Al-Sadiq1
- Jai Singh II1
- Jakob Eduard Polak1
- Jamālī Ardistani1
- Jaʻfar Vāʻiẓ1
- Jaʻfar ibn Muḥammad Ibn Qūlūyah1
- Jaʻfar ibn al-Ḥusayn Shūshtarī1
- Kalb Ḥusayn ibn Faz̤l ʻAlī Tabrīzī1
- Kamāl al-Dīn Ḥusayn ibn Ḥasan Khvārazmī1
- Keśava Kavirāja1
- Khwaja Abdullah Ansari1
- Khālid ibn ʻAbd Allāh Azharī1
- Koca Sofi1
- Krishnamishra1
- Kulaynī, Muḥammad ibn Yaʻqūb, -941?1
- Kuyucaklı Mehmet Atıf1
- Kâtip Çelebi1
- Köstendilli Süleymân Şeyhi1
- Kāśīnātha Upādhyāya, d. 18051
- Kāẓim1