Author
- Jacob ben Reuben ibn Zur1
- Jacob ibn Habib1
- Jacopone da Todi1
- Jacques Millet1
- Jalal al-Din Mohammad Tabrizi1
- James of Viterbo1
- Jamshīd al-Kāshī1
- Jamāl al-Dīn Aḥmad ibn Muḥammad Ẓāhirī1
- Jamāl al-Dīn Khvānsārī1
- Jayakr̥ṣṇa1
- Jaʻfar Vāʻiẓ1
- Jaʻfar ibn Khaḍir Janājī1
- Jean Dupin1
- Jean Marot1
- Jean de Meun1
- Jean de Roquetaillade1
- Jerome de Prado1
- Jerónimo Román y Zamora1
- Jewish Community of Amsterdam, Netherlands1
- Jewish Community of Padua, Italy1