Author
- Jacques Legrand1
- Jaghmini1
- Jalal al-Din al-Suyuti1
- Jalaluddin al-Mahalli1
- Jawād ibn Saʻd Jawād al-Baghdādī1
- Jean Filesac1
- Jean Gerson1
- Jean Manesca1
- Jean de Wavrin1
- Jean-François Roussin1
- Jerome1
- Jewish Community of Pitigliano, Italy1
- Joan Martines1
- Joannes Oliva1
- Johann Herolt1
- Johannes Hymmonides1
- Johannes Paulus1
- John Bale1
- John Capgrave1
- John Cassian1