Author
- Jerónimo Román y Zamora1
- Joachim Bendel1
- Joannes Dominicus de Marchis1
- Johann Hertzhaimer1
- Johann Neudörffer the Elder1
- Johannes Cnipius1
- Johannes Lemp1
- Johannes Mellarinus1
- Johannes Schöner1
- Johannes Tostius1
- John Cornelius1
- John Crosse1
- John Eyr1
- John Frederick II of Saxony1
- John Gage1
- John Harington1
- John de Beauchesne1
- John of Ibelin1
- John Dokeianos1
- Juan Martínez Silíceo1