Author
- John Gower1
- John Halgren of Abbeville1
- John Larry England1
- John of Saxony1
- John of Wales1
- Joseph ben Abraham Gikatilla1
- Joseph ben Judah ibn Aknin1
- Kalāʼī, Muḥammad ibn Sharaf, d. 13751
- Luke the Evangelist1
- Mahmud ibn Abd al-Rahman al-Isfahani1
- Malik ibn Anas1
- Matteo dei Libri1
- Matthew of Vendôme1
- Maurice de Sully1
- Maximus of Turin1
- Maḥmūd ibn Abī Bakr Faraḍī1
- Maḥmūd ibn ʻUbayd Allāh Burhān al-Sharīʻah1
- Michael Glycas1
- Michel Foret1
- Mordechai ben Hillel1