Author
- Inquisition Sicily)1
- Isaac Lattes1
- Isaac Luria1
- Jagannāth, Svāmī1
- Jagannātha Dīkṣita (Son of Yādava Dīkṣita)1
- Jagannāthacandra1
- Jalal al-Din al-Suyuti1
- Jayakṛṣṇa Brahmamuni1
- Jayalakṣmī1
- Jayarāmanyāyapañcānana1
- Jayarāmācārya1
- Jayāditya1
- Johanna Hawkeslowe (Sr.)1
- John Cleseby1
- Juan López Ossorio1
- Juan Valenzuela Velázquez1
- Juan Vicente de Güemes, 2nd Count of Revillagigedo1
- Juan de Foxá1
- Juan de Mongaston1
- Juana I of Castile1