Author
- Jalal al-Din al-Suyuti1
- Jalaluddin al-Mahalli1
- Jawād ibn Saʻd Jawād al-Baghdādī1
- Jean Filesac1
- Jean Gerson1
- Jean Le Fèvre de Ressons1
- Jean Manesca1
- Jean de Bernuy1
- Jean de Malian1
- Jean de Wavrin1
- Jean-François Roussin1
- Jerónimo Román y Zamora1
- Jewish Community of Pitigliano, Italy1
- Joan Martines1
- Joanna of Austria, Princess of Portugal1
- Joannes Oliva1
- Joannes de Crivelli1
- Johan de Arcenay1
- Johann Herolt1
- Johann Neudörffer the Elder1