Titles
- Johann Peter Frank1
- Johannes Caius1
- Johannes Carolus Rost1
- Johannes Daniel Schlichting1
- Johannes Freind M.D1
- Johannes Jacobus Mangetus Med. Doctor1
- Johannes Locke1
- Johannes Mauricius Hoffmann1
- Johannes Zacharias Platner1
- Johannes de Gorter1
- John Abernethy1
- John Arbuthnot, M.D1
- John Birch Esqr1
- John Fothergill, M.D1
- John Milton1
- Jos. von Beauchamp1
- Joseph Priestley. LL.D. F.R.S1
- Joseph Valentinus Vianelli1
- Josephus Cervi1
- Jūshikei hakki1