Author
- Khaqani1
- Khayr al-Din al-Ramli1
- Khuwarizmī, Jamāl al-Dīn Abu Bakr1
- Khwaja Abdullah Ansari1
- Khwaja Mir Dard1
- Kindī, ʻAmr ibn al-ʻĀṣ1
- Kirmānī, Muḥammad ibn ʻAlī1
- Koca Ragıp Pasha1
- Koca Sofi1
- Kokkoka1
- Konrad III. von Soltau1
- Kurdī, Yūsuf ibn Yaʻqūb1
- Kātyāyana1
- Kırımî Abdülgaffar Efendi1
- Kṛṣṇānanda Āgamavāgīśa Bhaṭṭācārya1
- Latîfî1
- Laurentius Cynthius1
- Leon Battista Alberti1
- Leonhard Freisleben1
- Lieb Hirsh1