Former Owner
- James K. Moffitt4
- James Lyell3
- Jan Six VII1
- Janārdana Koṇḍadeva Gāḍagīla1
- Jaʻfar ʻAlī1
- Jean E. Austin1
- Jean Jules Olinger1
- Joannes Angelus de Crema1
- Joannes Salzperg1
- Johan Meerman1
- Johann David Baier1
- Johann Heinrich van Ess2
- Johann Heinrich von Speyr-Passavant1
- Johann Michael Schiller1
- Johannes Wigg1
- John Alexander Stewart1
- John Camp Williams1
- John Church1
- John Edgar Ker1
- John Frederick Lewis15